North Chicago weather in August
In August, North Chicago sees average daytime highs of 77°F and overnight lows near 70°F, with 3.8 in of rain across 10.7 wet days and about 13.7 hours of daylight. It is the 2nd-warmest and 4th-wettest month of the year here.
Day-to-day highs hold fairly steady near 77°F through the month. The sky is clear or mostly clear about 43% of the time in August, and the air most often feels muggy.
Daylight stretches from about 14 h 18 min at the start of August to 13 h 06 min by month's end. Set against the rest of the year, August is North Chicago's 2nd-clearest and 12th-windiest month. For the whole year in context, see North Chicago's year-round climate.
- Daytime high
- 77°
- 2nd warmest
- Overnight low
- 70°
- 11th coldest
- Rainfall
- 3.8 in
- 10.7 wet days
- Daylight
- 13 h 42 min
- 5:04 AM – 6:47 PM
- Cloud cover
- 50%
- 2nd clearest
- Wind
- 10 mph
- 12th windiest
- Solar energy
- 5.55 kWh/m²
- Travel score
- 7.0
- out of 10
North Chicago is city and suburb of Chicago, Illinois, USA.
- Density
- 1,423/km²
- people per km²
- Founded
- 1892
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in August
Day-to-day highs hold fairly steady near 77°F through the month.
A typical August day in North Chicago reaches about 77°F in the afternoon and slips back to 70°F overnight — a 7°F spread between the day's warmth and the night's chill. On most days the high lands between 70°F and 84°F. Set against its neighbours, August runs on par with July and about 6°F warmer than September.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 78 | 78 | 78 | 78 | 78 | 78 | 77 | 77 | 77 | 77 | 77 | 77 | 77 | 77 | 77 | 77 | 77 | 77 | 77 | 77 | 77 | 77 | 77 | 76 | 76 | 76 | 76 | 76 | 76 | 76 | 76 |
| Avg low (°F) | 71 | 71 | 71 | 71 | 71 | 71 | 71 | 71 | 71 | 70 | 70 | 70 | 70 | 70 | 70 | 70 | 70 | 70 | 70 | 70 | 70 | 70 | 70 | 69 | 69 | 69 | 69 | 69 | 69 | 69 | 68 |
| Avg high (°F) | Avg low (°F) | |
|---|---|---|
| 1 | 78 | 71 |
| 2 | 78 | 71 |
| 3 | 78 | 71 |
| 4 | 78 | 71 |
| 5 | 78 | 71 |
| 6 | 78 | 71 |
| 7 | 77 | 71 |
| 8 | 77 | 71 |
| 9 | 77 | 71 |
| 10 | 77 | 70 |
| 11 | 77 | 70 |
| 12 | 77 | 70 |
| 13 | 77 | 70 |
| 14 | 77 | 70 |
| 15 | 77 | 70 |
| 16 | 77 | 70 |
| 17 | 77 | 70 |
| 18 | 77 | 70 |
| 19 | 77 | 70 |
| 20 | 77 | 70 |
| 21 | 77 | 70 |
| 22 | 77 | 70 |
| 23 | 77 | 70 |
| 24 | 76 | 69 |
| 25 | 76 | 69 |
| 26 | 76 | 69 |
| 27 | 76 | 69 |
| 28 | 76 | 69 |
| 29 | 76 | 69 |
| 30 | 76 | 69 |
| 31 | 76 | 68 |
How August really feels in North Chicago
Once humidity and wind are folded in, August averages 0 days that feel above 90°F and 0 that feel at or below 32°F — the comfort signal a plain temperature reading hides.
August sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
North Chicago weather by month
How August compares with the rest of the year at a glance. August is the 2nd-warmest and 4th-wettest month here — the current month is highlighted below.
| Month | High / Low (°F) | Rainfall (inches) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 30° / 21° | 2.9 | 9.8 | 7 | 9.3 | 0.0 |
| Feb | 31° / 21° | 2.4 | 7.7 | 5.1 | 10.3 | 0.0 |
| Mar | 37° / 29° | 3.0 | 9.8 | 3.2 | 11.6 | 0.0 |
| Apr | 46° / 39° | 4.8 | 12 | 1.4 | 13.1 | 1.3 |
| May | 58° / 50° | 4.1 | 11.7 | 0 | 14.4 | 4.1 |
| Jun | 71° / 64° | 3.5 | 10.5 | 0 | 15 | 6.5 |
| Jul | 78° / 70° | 3.1 | 10.5 | 0 | 14.8 | 6.8 |
| Aug | 77° / 70° | 3.8 | 10.7 | 0 | 13.7 | 7.0 |
| Sep | 71° / 63° | 3.3 | 9.5 | 0 | 12.3 | 6.8 |
| Oct | 58° / 51° | 4.0 | 10.5 | 0.1 | 10.8 | 4.4 |
| Nov | 46° / 39° | 3.4 | 10 | 1.3 | 9.6 | 1.2 |
| Dec | 36° / 28° | 3.1 | 10 | 4.9 | 9 | 0.0 |
Cloud cover in August
The sky is clear or mostly clear about 43% of the time in August.
Beyond those clear spells, partly cloudy skies cover about 17% of August, with mostly cloudy or overcast conditions the remaining 41%.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 59 | 59 | 59 | 59 | 59 | 59 | 58 | 58 | 58 | 58 | 59 | 58 | 58 | 59 | 59 | 59 | 60 | 60 | 59 | 59 | 60 | 59 | 59 | 59 | 60 | 60 | 60 | 61 | 61 | 62 | 62 |
| Cloudier (%) | 41 | 41 | 41 | 41 | 41 | 41 | 42 | 42 | 42 | 42 | 41 | 42 | 42 | 41 | 41 | 41 | 40 | 40 | 41 | 41 | 40 | 41 | 41 | 41 | 40 | 40 | 40 | 39 | 39 | 38 | 38 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 59 | 41 |
| 2 | 59 | 41 |
| 3 | 59 | 41 |
| 4 | 59 | 41 |
| 5 | 59 | 41 |
| 6 | 59 | 41 |
| 7 | 58 | 42 |
| 8 | 58 | 42 |
| 9 | 58 | 42 |
| 10 | 58 | 42 |
| 11 | 59 | 41 |
| 12 | 58 | 42 |
| 13 | 58 | 42 |
| 14 | 59 | 41 |
| 15 | 59 | 41 |
| 16 | 59 | 41 |
| 17 | 60 | 40 |
| 18 | 60 | 40 |
| 19 | 59 | 41 |
| 20 | 59 | 41 |
| 21 | 60 | 40 |
| 22 | 59 | 41 |
| 23 | 59 | 41 |
| 24 | 59 | 41 |
| 25 | 60 | 40 |
| 26 | 60 | 40 |
| 27 | 60 | 40 |
| 28 | 61 | 39 |
| 29 | 61 | 39 |
| 30 | 62 | 38 |
| 31 | 62 | 38 |
Chance of precipitation in August
North Chicago gets around 3.8 in of rain over 10.7 wet days in August. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 34% and peaks near 36% on the wettest days.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 34 | 34 | 35 | 35 | 35 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 35 | 35 | 34 | 33 | 32 | 31 | 31 | 30 | 29 | 29 |
| Rain chance (%) | |
|---|---|
| 1 | 33 |
| 2 | 33 |
| 3 | 33 |
| 4 | 33 |
| 5 | 33 |
| 6 | 33 |
| 7 | 33 |
| 8 | 34 |
| 9 | 34 |
| 10 | 35 |
| 11 | 35 |
| 12 | 35 |
| 13 | 36 |
| 14 | 36 |
| 15 | 36 |
| 16 | 36 |
| 17 | 36 |
| 18 | 36 |
| 19 | 36 |
| 20 | 36 |
| 21 | 36 |
| 22 | 35 |
| 23 | 35 |
| 24 | 34 |
| 25 | 33 |
| 26 | 32 |
| 27 | 31 |
| 28 | 31 |
| 29 | 30 |
| 30 | 29 |
| 31 | 29 |
Humidity in August
Most of August feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, August lands in the muggy band about 29% of days. Sticky, muggy-or-worse air turns up on roughly 47% of them.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 8 | 8 | 8 | 7 | 7 | 7 | 7 | 8 | 8 | 8 | 9 | 10 | 10 | 11 | 12 |
| Comfortable (%) | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 18 | 18 | 18 | 17 | 17 | 17 | 17 | 17 | 18 | 18 | 18 | 19 | 19 | 20 | 20 |
| Humid (%) | 25 | 25 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 27 | 27 | 27 | 28 | 28 | 28 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 28 | 28 | 28 | 27 | 27 |
| Muggy (%) | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 29 | 29 | 29 | 29 | 29 | 28 | 28 | 29 | 29 | 29 | 29 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 29 | 29 | 29 | 28 |
| Oppressive (%) | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 18 | 18 | 18 | 18 | 17 | 17 | 17 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 15 | 15 | 14 | 14 | 13 | 12 |
| Miserable (%) | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|---|---|---|
| 1 | 6 | 18 | 25 | 30 | 19 | 2 |
| 2 | 6 | 18 | 25 | 30 | 19 | 2 |
| 3 | 6 | 18 | 26 | 30 | 19 | 2 |
| 4 | 6 | 18 | 26 | 30 | 19 | 2 |
| 5 | 6 | 18 | 26 | 30 | 19 | 1 |
| 6 | 6 | 18 | 26 | 30 | 19 | 1 |
| 7 | 6 | 18 | 26 | 30 | 19 | 1 |
| 8 | 7 | 18 | 26 | 29 | 18 | 1 |
| 9 | 7 | 19 | 26 | 29 | 18 | 1 |
| 10 | 7 | 19 | 26 | 29 | 18 | 1 |
| 11 | 7 | 19 | 26 | 29 | 18 | 1 |
| 12 | 7 | 19 | 27 | 29 | 17 | 1 |
| 13 | 7 | 19 | 27 | 28 | 17 | 1 |
| 14 | 7 | 19 | 27 | 28 | 17 | 1 |
| 15 | 7 | 19 | 28 | 29 | 16 | 1 |
| 16 | 7 | 19 | 28 | 29 | 16 | 1 |
| 17 | 8 | 18 | 28 | 29 | 16 | 1 |
| 18 | 8 | 18 | 29 | 29 | 16 | 1 |
| 19 | 8 | 18 | 29 | 30 | 16 | 0 |
| 20 | 7 | 17 | 29 | 30 | 16 | 0 |
| 21 | 7 | 17 | 29 | 30 | 16 | 0 |
| 22 | 7 | 17 | 29 | 30 | 16 | 0 |
| 23 | 7 | 17 | 29 | 30 | 16 | 0 |
| 24 | 8 | 17 | 29 | 30 | 16 | 0 |
| 25 | 8 | 18 | 29 | 30 | 16 | 0 |
| 26 | 8 | 18 | 29 | 30 | 15 | 0 |
| 27 | 9 | 18 | 28 | 30 | 15 | 0 |
| 28 | 10 | 19 | 28 | 29 | 14 | 0 |
| 29 | 10 | 19 | 28 | 29 | 14 | 0 |
| 30 | 11 | 20 | 27 | 29 | 13 | 0 |
| 31 | 12 | 20 | 27 | 28 | 12 | 0 |
Wind in August
Winds average 10 mph in August, the calmest month.
Across August, daily wind ranges from about 10 mph on the calmest days to 11 mph at its breeziest. It stays fairly steady from day to day.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (mph) | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 11 | 11 | 11 | 11 |
| Feels | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze |
| Wind speed (mph) | Feels | |
|---|---|---|
| 1 | 10 | light breeze |
| 2 | 10 | light breeze |
| 3 | 10 | light breeze |
| 4 | 10 | light breeze |
| 5 | 10 | light breeze |
| 6 | 10 | light breeze |
| 7 | 10 | light breeze |
| 8 | 10 | light breeze |
| 9 | 10 | light breeze |
| 10 | 10 | light breeze |
| 11 | 10 | light breeze |
| 12 | 10 | light breeze |
| 13 | 10 | light breeze |
| 14 | 10 | light breeze |
| 15 | 10 | light breeze |
| 16 | 10 | light breeze |
| 17 | 10 | light breeze |
| 18 | 10 | light breeze |
| 19 | 10 | light breeze |
| 20 | 10 | light breeze |
| 21 | 10 | light breeze |
| 22 | 10 | light breeze |
| 23 | 10 | light breeze |
| 24 | 10 | light breeze |
| 25 | 10 | light breeze |
| 26 | 10 | light breeze |
| 27 | 10 | light breeze |
| 28 | 11 | light breeze |
| 29 | 11 | light breeze |
| 30 | 11 | light breeze |
| 31 | 11 | light breeze |
Sunrise & sunset in August
Daylight runs from about 14 h 18 min at the start of August to 13 h 06 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 72 minutes over August. Sunrise moves from 4:48 AM to 5:20 AM, and sunset from 7:07 PM to 6:23 PM.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 14.3 | 14.3 | 14.3 | 14.2 | 14.2 | 14.1 | 14.1 | 14.1 | 14.0 | 14.0 | 13.9 | 13.9 | 13.9 | 13.8 | 13.8 | 13.7 | 13.7 | 13.6 | 13.6 | 13.6 | 13.5 | 13.5 | 13.4 | 13.4 | 13.3 | 13.3 | 13.2 | 13.2 | 13.1 | 13.1 | 13.1 |
| Sunrise (AM) | 4:48 | 4:49 | 4:50 | 4:51 | 4:52 | 4:53 | 4:54 | 4:55 | 4:56 | 4:57 | 4:58 | 4:59 | 5:00 | 5:01 | 5:02 | 5:04 | 5:05 | 5:06 | 5:07 | 5:08 | 5:09 | 5:10 | 5:11 | 5:12 | 5:13 | 5:14 | 5:15 | 5:17 | 5:18 | 5:19 | 5:20 |
| Sunset (PM) | 7:07 | 7:06 | 7:05 | 7:04 | 7:02 | 7:01 | 7:00 | 6:59 | 6:57 | 6:56 | 6:55 | 6:53 | 6:52 | 6:50 | 6:49 | 6:47 | 6:46 | 6:44 | 6:43 | 6:41 | 6:40 | 6:38 | 6:36 | 6:35 | 6:33 | 6:31 | 6:30 | 6:28 | 6:26 | 6:25 | 6:23 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 14.3 | 4:48 | 7:07 |
| 2 | 14.3 | 4:49 | 7:06 |
| 3 | 14.3 | 4:50 | 7:05 |
| 4 | 14.2 | 4:51 | 7:04 |
| 5 | 14.2 | 4:52 | 7:02 |
| 6 | 14.1 | 4:53 | 7:01 |
| 7 | 14.1 | 4:54 | 7:00 |
| 8 | 14.1 | 4:55 | 6:59 |
| 9 | 14.0 | 4:56 | 6:57 |
| 10 | 14.0 | 4:57 | 6:56 |
| 11 | 13.9 | 4:58 | 6:55 |
| 12 | 13.9 | 4:59 | 6:53 |
| 13 | 13.9 | 5:00 | 6:52 |
| 14 | 13.8 | 5:01 | 6:50 |
| 15 | 13.8 | 5:02 | 6:49 |
| 16 | 13.7 | 5:04 | 6:47 |
| 17 | 13.7 | 5:05 | 6:46 |
| 18 | 13.6 | 5:06 | 6:44 |
| 19 | 13.6 | 5:07 | 6:43 |
| 20 | 13.6 | 5:08 | 6:41 |
| 21 | 13.5 | 5:09 | 6:40 |
| 22 | 13.5 | 5:10 | 6:38 |
| 23 | 13.4 | 5:11 | 6:36 |
| 24 | 13.4 | 5:12 | 6:35 |
| 25 | 13.3 | 5:13 | 6:33 |
| 26 | 13.3 | 5:14 | 6:31 |
| 27 | 13.2 | 5:15 | 6:30 |
| 28 | 13.2 | 5:17 | 6:28 |
| 29 | 13.1 | 5:18 | 6:26 |
| 30 | 13.1 | 5:19 | 6:25 |
| 31 | 13.1 | 5:20 | 6:23 |
Solar energy in August
Average shortwave solar energy reaching the ground each day in August, about 5.55 kWh/m².
For context, solar energy here swings from a low near 1.48 kWh/m² to a high of 6.5 kWh/m² in June across the year — August's 5.55 kWh/m² falls in the middle.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 6.1 | 6.0 | 6.0 | 6.0 | 5.9 | 5.9 | 5.8 | 5.8 | 5.8 | 5.7 | 5.7 | 5.7 | 5.6 | 5.6 | 5.6 | 5.5 | 5.5 | 5.5 | 5.4 | 5.4 | 5.4 | 5.4 | 5.3 | 5.3 | 5.3 | 5.3 | 5.2 | 5.2 | 5.2 | 5.1 | 5.1 |
| Level | Intense | Intense | Intense | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 6.1 | Intense |
| 2 | 6.0 | Intense |
| 3 | 6.0 | Intense |
| 4 | 6.0 | Bright |
| 5 | 5.9 | Bright |
| 6 | 5.9 | Bright |
| 7 | 5.8 | Bright |
| 8 | 5.8 | Bright |
| 9 | 5.8 | Bright |
| 10 | 5.7 | Bright |
| 11 | 5.7 | Bright |
| 12 | 5.7 | Bright |
| 13 | 5.6 | Bright |
| 14 | 5.6 | Bright |
| 15 | 5.6 | Bright |
| 16 | 5.5 | Bright |
| 17 | 5.5 | Bright |
| 18 | 5.5 | Bright |
| 19 | 5.4 | Bright |
| 20 | 5.4 | Bright |
| 21 | 5.4 | Bright |
| 22 | 5.4 | Bright |
| 23 | 5.3 | Bright |
| 24 | 5.3 | Bright |
| 25 | 5.3 | Bright |
| 26 | 5.3 | Bright |
| 27 | 5.2 | Bright |
| 28 | 5.2 | Bright |
| 29 | 5.2 | Bright |
| 30 | 5.1 | Bright |
| 31 | 5.1 | Bright |
Is August a good time to visit North Chicago?
Our two travel scores rate August for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
August is one of the better times to visit North Chicago for general sightseeing. The water and warmth also suit a beach or pool day.
What to pack for North Chicago in August
From August's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In August, North Chicago sees daytime highs around 77°F and nights near 70°F. Worth packing: light clothes, rain gear and sun protection. About 11 days see rain.
Sea temperature near North Chicago in August
The nearest coast averages about 71°F in August — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea offshore is warmest in August at about 71°F and coldest in March near 36°F.
It's comfortable for a long swim from Jul 18 to Sep 8 — about 1.7 months when the water holds above 68°F.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°F) | 38 | 36 | 36 | 38 | 43 | 55 | 68 | 71 | 67 | 57 | 47 | 42 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Refreshing | Refreshing | Cool | Bracing | Bracing | Bracing |
| Sea temperature (°F) | Comfort | |
|---|---|---|
| Jan | 38 | Bracing |
| Feb | 36 | Bracing |
| Mar | 36 | Bracing |
| Apr | 38 | Bracing |
| May | 43 | Bracing |
| Jun | 55 | Bracing |
| Jul | 68 | Refreshing |
| Aug | 71 | Refreshing |
| Sep | 67 | Cool |
| Oct | 57 | Bracing |
| Nov | 47 | Bracing |
| Dec | 42 | Bracing |
UV index in North Chicago in August
Clear-sky midday UV in August peaks around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in North Chicago peaks around June 22 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 at about 1 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 1 | 2 | 4 | 6 | 7 | 9 | 9 | 8 | 6 | 3 | 2 | 1 |
| Level | Low | Moderate | Moderate | High | Very high | Very high | Very high | Very high | High | Moderate | Moderate | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 1 | Low |
| Feb | 2 | Moderate |
| Mar | 4 | Moderate |
| Apr | 6 | High |
| May | 7 | Very high |
| Jun | 9 | Very high |
| Jul | 9 | Very high |
| Aug | 8 | Very high |
| Sep | 6 | High |
| Oct | 3 | Moderate |
| Nov | 2 | Moderate |
| Dec | 1 | Low |
Air quality in North Chicago in August
Average fine-particle pollution (PM2.5) through the year — so you can see where August falls, not just the annual average.
Air quality in North Chicago is worst in July — around 21 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (October, 10 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 12 | 15 | 18 | 19 | 20 | 21 | 21 | 18 | 15 | 10 | 10 | 11 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 12 | Moderate |
| Feb | 15 | Moderate |
| Mar | 18 | Moderate |
| Apr | 19 | Moderate |
| May | 20 | Moderate |
| Jun | 21 | Moderate |
| Jul | 21 | Moderate |
| Aug | 18 | Moderate |
| Sep | 15 | Moderate |
| Oct | 10 | Good |
| Nov | 10 | Good |
| Dec | 11 | Good |
Where is North Chicago?
North Chicago sits at 42.3°N, 87.8°W, 659 ft above sea level, in United States. The nearest listed city is Waukegan, 2.5 mi away.
Topography around North Chicago
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of North Chicago.
Within 2 miles, the terrain around North Chicago has only modest variations in elevation — a maximum elevation change of 200 ft around an average of 640 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 318 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 787 ft.
The land around North Chicago is covered by artificial surfaces (32%) and water (32%) within 2 miles, water (42%) and trees (27%) within 10 miles, and water (44%) within 50 miles.
United States travel facts
- Power plugs
- Type A / B
- 120 V · 60 Hz
- Prices
- ≈ 100% of US
- price level, 2025
- GDP per capita
- $90,027
- 2025
- Happiness
- 6.8 / 10
- World Happiness, 2025
- Safe drinking water
- 98%
- of population, 2024
- Homicide rate
- 5.8
- per 100k, 2023
- Road deaths
- 12.7
- per 100k/yr, 2019
- Income group
- High
- World Bank
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for North Chicago (42.3256°, -87.8412°, elevation 659 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).