Kankakee weather in August
In August, Kankakee sees average daytime highs of 82°F and overnight lows near 64°F, with 3.4 in of rain across 9.5 wet days and about 13.6 hours of daylight. It is the 2nd-warmest and 5th-wettest month of the year here.
Day-to-day highs hold fairly steady near 82°F through the month. The sky is clear or mostly clear about 38% of the time in August, and the air most often feels humid.
Daylight stretches from about 14 h 12 min at the start of August to 13 hours by month's end. Set against the rest of the year, August is Kankakee's 2nd-clearest and 12th-windiest month. For the whole year in context, see Kankakee's year-round climate.
- Daytime high
- 82°
- 2nd warmest
- Overnight low
- 64°
- 11th coldest
- Rainfall
- 3.4 in
- 9.5 wet days
- Daylight
- 13 h 42 min
- 5:06 AM – 6:45 PM
- Cloud cover
- 53%
- 2nd clearest
- Wind
- 6 mph
- 12th windiest
- Solar energy
- 5.56 kWh/m²
- Travel score
- 6.5
- out of 10
Kankakee is city in Kankakee County, Illinois, United States.
- Density
- 665/km²
- people per km²
- Founded
- 1853
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in August
Day-to-day highs hold fairly steady near 82°F through the month.
A typical August day in Kankakee reaches about 82°F in the afternoon and slips back to 64°F overnight — a 18°F spread between the day's warmth and the night's chill. On most days the high lands between 74°F and 90°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) | 83 | 83 | 83 | 83 | 83 | 82 | 82 | 82 | 82 | 82 | 82 | 82 | 82 | 82 | 82 | 82 | 82 | 82 | 82 | 82 | 82 | 82 | 82 | 82 | 82 | 82 | 82 | 82 | 81 | 81 | 81 |
| Avg low (°F) | 65 | 65 | 65 | 65 | 65 | 65 | 64 | 64 | 64 | 64 | 64 | 64 | 64 | 64 | 64 | 64 | 64 | 64 | 64 | 64 | 63 | 63 | 63 | 63 | 63 | 63 | 63 | 62 | 62 | 62 | 62 |
| Avg high (°F) | Avg low (°F) | |
|---|---|---|
| 1 | 83 | 65 |
| 2 | 83 | 65 |
| 3 | 83 | 65 |
| 4 | 83 | 65 |
| 5 | 83 | 65 |
| 6 | 82 | 65 |
| 7 | 82 | 64 |
| 8 | 82 | 64 |
| 9 | 82 | 64 |
| 10 | 82 | 64 |
| 11 | 82 | 64 |
| 12 | 82 | 64 |
| 13 | 82 | 64 |
| 14 | 82 | 64 |
| 15 | 82 | 64 |
| 16 | 82 | 64 |
| 17 | 82 | 64 |
| 18 | 82 | 64 |
| 19 | 82 | 64 |
| 20 | 82 | 64 |
| 21 | 82 | 63 |
| 22 | 82 | 63 |
| 23 | 82 | 63 |
| 24 | 82 | 63 |
| 25 | 82 | 63 |
| 26 | 82 | 63 |
| 27 | 82 | 63 |
| 28 | 82 | 62 |
| 29 | 81 | 62 |
| 30 | 81 | 62 |
| 31 | 81 | 62 |
How August really feels in Kankakee
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.
Kankakee weather by month
How August compares with the rest of the year at a glance. August is the 2nd-warmest and 5th-wettest month here — the current month is highlighted below.
| Month | High / Low (°F) | Rainfall (inches) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 33° / 19° | 2.5 | 8.9 | 5.3 | 9.4 | 0.0 |
| Feb | 38° / 22° | 2.1 | 7.4 | 4.2 | 10.4 | 0.0 |
| Mar | 49° / 31° | 3.1 | 10.4 | 2.2 | 11.7 | 2.0 |
| Apr | 62° / 42° | 4.3 | 12.2 | 0.6 | 13.1 | 4.8 |
| May | 72° / 52° | 4.5 | 13.1 | 0 | 14.3 | 6.1 |
| Jun | 80° / 62° | 4.1 | 12.4 | 0 | 14.9 | 6.0 |
| Jul | 83° / 66° | 3.7 | 11.2 | 0 | 14.7 | 5.7 |
| Aug | 82° / 64° | 3.4 | 9.5 | 0 | 13.6 | 6.5 |
| Sep | 76° / 56° | 3.0 | 8.1 | 0 | 12.3 | 7.1 |
| Oct | 64° / 45° | 3.2 | 9.1 | 0.1 | 10.9 | 5.8 |
| Nov | 50° / 34° | 2.9 | 8.6 | 1.1 | 9.7 | 2.3 |
| Dec | 38° / 25° | 2.3 | 8.2 | 3.4 | 9.1 | 0.0 |
Cloud cover in August
The sky is clear or mostly clear about 38% of the time in August.
Beyond those clear spells, partly cloudy skies cover about 19% of August, with mostly cloudy or overcast conditions the remaining 44%.
| 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 (%) | 56 | 56 | 56 | 56 | 57 | 57 | 56 | 56 | 56 | 56 | 55 | 55 | 55 | 56 | 56 | 56 | 56 | 56 | 56 | 55 | 55 | 56 | 56 | 56 | 56 | 56 | 57 | 58 | 58 | 58 | 59 |
| Cloudier (%) | 44 | 44 | 44 | 44 | 43 | 43 | 44 | 44 | 44 | 44 | 45 | 45 | 45 | 44 | 44 | 44 | 44 | 44 | 44 | 45 | 45 | 44 | 44 | 44 | 44 | 44 | 43 | 42 | 42 | 42 | 41 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 56 | 44 |
| 2 | 56 | 44 |
| 3 | 56 | 44 |
| 4 | 56 | 44 |
| 5 | 57 | 43 |
| 6 | 57 | 43 |
| 7 | 56 | 44 |
| 8 | 56 | 44 |
| 9 | 56 | 44 |
| 10 | 56 | 44 |
| 11 | 55 | 45 |
| 12 | 55 | 45 |
| 13 | 55 | 45 |
| 14 | 56 | 44 |
| 15 | 56 | 44 |
| 16 | 56 | 44 |
| 17 | 56 | 44 |
| 18 | 56 | 44 |
| 19 | 56 | 44 |
| 20 | 55 | 45 |
| 21 | 55 | 45 |
| 22 | 56 | 44 |
| 23 | 56 | 44 |
| 24 | 56 | 44 |
| 25 | 56 | 44 |
| 26 | 56 | 44 |
| 27 | 57 | 43 |
| 28 | 58 | 42 |
| 29 | 58 | 42 |
| 30 | 58 | 42 |
| 31 | 59 | 41 |
Chance of precipitation in August
Kankakee gets around 3.4 in of rain over 9.5 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 30% and peaks near 32% 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 (%) | 31 | 31 | 30 | 30 | 30 | 29 | 29 | 29 | 30 | 30 | 30 | 30 | 30 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 32 | 32 | 32 | 31 | 31 | 31 | 30 | 30 | 30 | 29 | 29 |
| Rain chance (%) | |
|---|---|
| 1 | 31 |
| 2 | 31 |
| 3 | 30 |
| 4 | 30 |
| 5 | 30 |
| 6 | 29 |
| 7 | 29 |
| 8 | 29 |
| 9 | 30 |
| 10 | 30 |
| 11 | 30 |
| 12 | 30 |
| 13 | 30 |
| 14 | 31 |
| 15 | 31 |
| 16 | 31 |
| 17 | 31 |
| 18 | 31 |
| 19 | 31 |
| 20 | 31 |
| 21 | 32 |
| 22 | 32 |
| 23 | 32 |
| 24 | 31 |
| 25 | 31 |
| 26 | 31 |
| 27 | 30 |
| 28 | 30 |
| 29 | 30 |
| 30 | 29 |
| 31 | 29 |
Humidity in August
Most of August feels humid — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, August lands in the humid band about 25% of days. Sticky, muggy-or-worse air turns up on roughly 40% 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 (%) | 8 | 8 | 8 | 8 | 8 | 9 | 9 | 10 | 10 | 11 | 11 | 12 | 12 | 12 | 13 | 13 | 13 | 13 | 14 | 14 | 14 | 14 | 14 | 14 | 15 | 15 | 16 | 17 | 18 | 19 | 20 |
| Comfortable (%) | 21 | 22 | 22 | 23 | 23 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 23 | 23 | 23 | 23 | 23 | 22 | 22 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 22 | 22 | 22 | 23 | 23 |
| Humid (%) | 26 | 26 | 26 | 26 | 25 | 25 | 25 | 25 | 24 | 24 | 24 | 25 | 25 | 25 | 25 | 25 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 25 | 25 | 24 | 24 | 24 | 23 |
| Muggy (%) | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 24 | 23 | 23 | 23 | 23 | 24 | 24 | 25 | 25 | 26 | 26 | 27 | 27 | 27 | 27 | 26 | 26 | 26 | 26 | 25 |
| Oppressive (%) | 18 | 17 | 17 | 17 | 17 | 17 | 17 | 16 | 16 | 16 | 16 | 15 | 15 | 15 | 14 | 14 | 14 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 11 | 11 | 10 | 10 | 9 | 9 | 8 |
| Miserable (%) | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|---|---|---|
| 1 | 8 | 21 | 26 | 25 | 18 | 2 |
| 2 | 8 | 22 | 26 | 25 | 17 | 1 |
| 3 | 8 | 22 | 26 | 25 | 17 | 1 |
| 4 | 8 | 23 | 26 | 25 | 17 | 1 |
| 5 | 8 | 23 | 25 | 25 | 17 | 1 |
| 6 | 9 | 24 | 25 | 25 | 17 | 1 |
| 7 | 9 | 24 | 25 | 25 | 17 | 1 |
| 8 | 10 | 24 | 25 | 24 | 16 | 1 |
| 9 | 10 | 24 | 24 | 24 | 16 | 1 |
| 10 | 11 | 24 | 24 | 24 | 16 | 1 |
| 11 | 11 | 24 | 24 | 24 | 16 | 1 |
| 12 | 12 | 24 | 25 | 24 | 15 | 1 |
| 13 | 12 | 23 | 25 | 23 | 15 | 1 |
| 14 | 12 | 23 | 25 | 23 | 15 | 1 |
| 15 | 13 | 23 | 25 | 23 | 14 | 1 |
| 16 | 13 | 23 | 25 | 23 | 14 | 1 |
| 17 | 13 | 23 | 26 | 24 | 14 | 1 |
| 18 | 13 | 22 | 26 | 24 | 13 | 1 |
| 19 | 14 | 22 | 26 | 25 | 13 | 1 |
| 20 | 14 | 21 | 26 | 25 | 13 | 1 |
| 21 | 14 | 21 | 26 | 26 | 12 | 1 |
| 22 | 14 | 21 | 26 | 26 | 12 | 1 |
| 23 | 14 | 21 | 26 | 27 | 12 | 1 |
| 24 | 14 | 21 | 26 | 27 | 12 | 1 |
| 25 | 15 | 21 | 26 | 27 | 11 | 1 |
| 26 | 15 | 21 | 25 | 27 | 11 | 1 |
| 27 | 16 | 22 | 25 | 26 | 10 | 1 |
| 28 | 17 | 22 | 24 | 26 | 10 | 0 |
| 29 | 18 | 22 | 24 | 26 | 9 | 0 |
| 30 | 19 | 23 | 24 | 26 | 9 | 0 |
| 31 | 20 | 23 | 23 | 25 | 8 | 0 |
Wind in August
Winds average 6 mph in August, the calmest month.
Across August, daily wind ranges from about 6 mph on the calmest days to 7 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) | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 |
| Feels | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm |
| Wind speed (mph) | Feels | |
|---|---|---|
| 1 | 6 | calm |
| 2 | 6 | calm |
| 3 | 6 | calm |
| 4 | 6 | calm |
| 5 | 6 | calm |
| 6 | 6 | calm |
| 7 | 6 | calm |
| 8 | 6 | calm |
| 9 | 6 | calm |
| 10 | 6 | calm |
| 11 | 6 | calm |
| 12 | 6 | calm |
| 13 | 6 | calm |
| 14 | 6 | calm |
| 15 | 6 | calm |
| 16 | 6 | calm |
| 17 | 6 | calm |
| 18 | 6 | calm |
| 19 | 6 | calm |
| 20 | 7 | calm |
| 21 | 7 | calm |
| 22 | 7 | calm |
| 23 | 7 | calm |
| 24 | 7 | calm |
| 25 | 7 | calm |
| 26 | 7 | calm |
| 27 | 7 | calm |
| 28 | 7 | calm |
| 29 | 7 | calm |
| 30 | 7 | calm |
| 31 | 7 | calm |
Sunrise & sunset in August
Daylight runs from about 14 h 12 min at the start of August to 13 hours by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 72 minutes over August. Sunrise moves from 4:51 AM to 5:21 AM, and sunset from 7:04 PM to 6:22 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) | 14.2 | 14.2 | 14.2 | 14.1 | 14.1 | 14.0 | 14.0 | 14.0 | 13.9 | 13.9 | 13.9 | 13.8 | 13.8 | 13.7 | 13.7 | 13.7 | 13.6 | 13.6 | 13.5 | 13.5 | 13.4 | 13.4 | 13.4 | 13.3 | 13.3 | 13.2 | 13.2 | 13.1 | 13.1 | 13.1 | 13.0 |
| Sunrise (AM) | 4:51 | 4:52 | 4:53 | 4:54 | 4:55 | 4:56 | 4:57 | 4:58 | 4:59 | 5:00 | 5:01 | 5:02 | 5:03 | 5:04 | 5:05 | 5:06 | 5:07 | 5:08 | 5:09 | 5:10 | 5:11 | 5:12 | 5:13 | 5:14 | 5:15 | 5:16 | 5:17 | 5:18 | 5:19 | 5:20 | 5:21 |
| Sunset (PM) | 7:04 | 7:03 | 7:02 | 7:01 | 7:00 | 6:59 | 6:57 | 6:56 | 6:55 | 6:54 | 6:52 | 6:51 | 6:50 | 6:48 | 6:47 | 6:45 | 6:44 | 6:42 | 6:41 | 6:39 | 6:38 | 6:36 | 6:35 | 6:33 | 6:32 | 6:30 | 6:28 | 6:27 | 6:25 | 6:23 | 6:22 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 14.2 | 4:51 | 7:04 |
| 2 | 14.2 | 4:52 | 7:03 |
| 3 | 14.2 | 4:53 | 7:02 |
| 4 | 14.1 | 4:54 | 7:01 |
| 5 | 14.1 | 4:55 | 7:00 |
| 6 | 14.0 | 4:56 | 6:59 |
| 7 | 14.0 | 4:57 | 6:57 |
| 8 | 14.0 | 4:58 | 6:56 |
| 9 | 13.9 | 4:59 | 6:55 |
| 10 | 13.9 | 5:00 | 6:54 |
| 11 | 13.9 | 5:01 | 6:52 |
| 12 | 13.8 | 5:02 | 6:51 |
| 13 | 13.8 | 5:03 | 6:50 |
| 14 | 13.7 | 5:04 | 6:48 |
| 15 | 13.7 | 5:05 | 6:47 |
| 16 | 13.7 | 5:06 | 6:45 |
| 17 | 13.6 | 5:07 | 6:44 |
| 18 | 13.6 | 5:08 | 6:42 |
| 19 | 13.5 | 5:09 | 6:41 |
| 20 | 13.5 | 5:10 | 6:39 |
| 21 | 13.4 | 5:11 | 6:38 |
| 22 | 13.4 | 5:12 | 6:36 |
| 23 | 13.4 | 5:13 | 6:35 |
| 24 | 13.3 | 5:14 | 6:33 |
| 25 | 13.3 | 5:15 | 6:32 |
| 26 | 13.2 | 5:16 | 6:30 |
| 27 | 13.2 | 5:17 | 6:28 |
| 28 | 13.1 | 5:18 | 6:27 |
| 29 | 13.1 | 5:19 | 6:25 |
| 30 | 13.1 | 5:20 | 6:23 |
| 31 | 13.0 | 5:21 | 6:22 |
Solar energy in August
Average shortwave solar energy reaching the ground each day in August, about 5.56 kWh/m².
For context, solar energy here swings from a low near 1.7 kWh/m² to a high of 6.33 kWh/m² in June across the year — August's 5.56 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) | 6.0 | 6.0 | 6.0 | 5.9 | 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 | 5.5 | 5.4 | 5.4 | 5.4 | 5.3 | 5.3 | 5.3 | 5.3 | 5.3 | 5.2 | 5.2 | 5.2 | 5.1 |
| Level | 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 | Bright |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 6.0 | Intense |
| 2 | 6.0 | Intense |
| 3 | 6.0 | Bright |
| 4 | 5.9 | 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 | 5.5 | 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 | 5.3 | Bright |
| 28 | 5.2 | Bright |
| 29 | 5.2 | Bright |
| 30 | 5.2 | Bright |
| 31 | 5.1 | Bright |
Is August a good time to visit Kankakee?
Our two travel scores rate August for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
August is a reasonable time to visit Kankakee for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Kankakee in August
From August's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In August, Kankakee sees daytime highs around 82°F and nights near 64°F. Pack light clothes. Worth having: rain gear and sun protection. About 10 days see rain.
Sea temperature near Kankakee in August
The nearest coast averages about 73°F in August — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 43 mi away) is warmest in August at about 73°F and coldest in February near 35°F.
It's comfortable for a long swim from Jul 10 to Sep 16 — about 2.3 months when the water holds above 68°F.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°F) | 38 | 35 | 35 | 39 | 46 | 59 | 70 | 73 | 68 | 58 | 49 | 42 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Bracing | Cool | Refreshing | Refreshing | Refreshing | Bracing | Bracing | Bracing |
| Sea temperature (°F) | Comfort | |
|---|---|---|
| Jan | 38 | Bracing |
| Feb | 35 | Bracing |
| Mar | 35 | Bracing |
| Apr | 39 | Bracing |
| May | 46 | Bracing |
| Jun | 59 | Cool |
| Jul | 70 | Refreshing |
| Aug | 73 | Refreshing |
| Sep | 68 | Refreshing |
| Oct | 58 | Bracing |
| Nov | 49 | Bracing |
| Dec | 42 | Bracing |
UV index in Kankakee 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 Kankakee peaks around June 21 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 at about 2 (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) | 2 | 3 | 5 | 6 | 7 | 9 | 9 | 8 | 6 | 3 | 2 | 2 |
| Level | Low | Moderate | Moderate | High | Very high | Very high | Very high | Very high | High | Moderate | Moderate | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 2 | Low |
| Feb | 3 | Moderate |
| Mar | 5 | 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 | 2 | Low |
Air quality in Kankakee 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 Kankakee is worst in July — around 18 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (October, 8 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) | 11 | 14 | 15 | 15 | 17 | 17 | 18 | 16 | 12 | 8 | 9 | 10 |
| Level | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 11 | Good |
| Feb | 14 | Moderate |
| Mar | 15 | Moderate |
| Apr | 15 | Moderate |
| May | 17 | Moderate |
| Jun | 17 | Moderate |
| Jul | 18 | Moderate |
| Aug | 16 | Moderate |
| Sep | 12 | Moderate |
| Oct | 8 | Good |
| Nov | 9 | Good |
| Dec | 10 | Good |
Where is Kankakee?
Kankakee sits at 41.1°N, 87.9°W, 656 ft above sea level, in United States. The nearest listed city is Bradley, 1.2 mi away.
Topography around Kankakee
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Kankakee.
Within 2 miles, the terrain around Kankakee has only modest variations in elevation — a maximum elevation change of 121 ft around an average of 633 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 272 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 564 ft.
The land around Kankakee is covered by artificial surfaces (37%) and trees (30%) within 2 miles, cropland (75%) within 10 miles, and cropland (70%) 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 Kankakee (41.12°, -87.8611°, elevation 656 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).