North Peoria weather in September

In September, North Peoria sees average daytime highs of 76°F and overnight lows near 56°F, with 3.0 in of rain across 7.9 wet days and about 12.3 hours of daylight. It is the 4th-warmest and 7th-wettest month of the year here.

Highs ease over the month, from about 80°F in the first days to 72°F by the end. The sky is clear or mostly clear about 45% of the time in September, and the air most often feels dry.

Daylight stretches from about 12 h 54 min at the start of September to 11 h 36 min by month's end. Set against the rest of the year, September is North Peoria's 1st-clearest and 9th-windiest month. For the whole year in context, see North Peoria's year-round climate.

Daytime high
76°
4th warmest
Overnight low
56°
9th coldest
Rainfall
3.0 in
7.9 wet days
Daylight
12 h 18 min
5:45 AM – 6:01 PM
Cloud cover
47%
1st clearest
Wind
7 mph
9th windiest
Solar energy
4.63 kWh/m²
Travel score
7.2
out of 10

North Peoria is former village now in Peoria, Peoria County, Illinois, United States of America.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 80°F in the first days to 72°F by the end.

A typical September day in North Peoria reaches about 76°F in the afternoon and slips back to 56°F overnight — a 20°F spread between the day's warmth and the night's chill. On most days the high lands between 66°F and 87°F. Set against its neighbours, September runs about 6°F cooler than August and about 13°F warmer than October.

40°60°80°151015202530
Avg high (°F)Avg low (°F)
18162
28162
38062
48061
58061
68060
77960
87960
97959
107859
117858
127858
137758
147757
157657
167656
177656
187556
197555
207555
217454
227454
237453
247353
257353
267252
277252
287251
297151
307151

How September really feels in North Peoria

Once humidity and wind are folded in, September 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.

Days feeling ≥ 90°F
0
heat index over the day's high
Days feeling ≤ 32°F
0
wind chill below the day's low

September sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

North Peoria weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan33° / 19°2.1859.40.0
Feb37° / 22°2.17.14.110.40.0
Mar49° / 32°2.910.21.911.72.1
Apr62° / 43°4.411.80.613.14.9
May72° / 53°4.613014.26.1
Jun81° / 63°4.411.6014.96.1
Jul84° / 67°3.810.2014.65.7
Aug82° / 64°3.19.4013.66.5
Sep76° / 56°3.07.9012.37.2
Oct64° / 45°3.18.60.110.95.8
Nov49° / 34°2.88.219.72.2
Dec38° / 24°2.27.73.59.10.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 45% of the time in September, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 14% of September, with mostly cloudy or overcast conditions the remaining 41%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16238
26337
36337
46337
56337
66337
76436
86337
96337
106337
116139
126040
136040
145941
155842
165743
175743
185644
195545
205545
215644
225644
235644
245545
255545
265545
275545
285545
295545
305545

Chance of precipitation in September

Any precipitation

North Peoria gets around 3.0 in of rain over 7.9 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 27% and peaks near 29% on the wettest days.

0%10%20%30%40%151015202530
Rain chance (%)
127
227
327
427
527
627
727
827
928
1028
1128
1229
1329
1429
1529
1629
1729
1828
1928
2028
2127
2227
2327
2426
2526
2626
2726
2826
2926
3026

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

Most of September feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, September lands in the dry band about 45% of days. Sticky, muggy-or-worse air turns up on roughly 16% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
11823242510
2192324249
3212424239
4232424218
5242524207
6262623196
7282623185
8302623175
9322622164
10332622154
11352622143
12372521143
13392520133
14412419132
15442319122
16462318122
17482217111
18502216111
19522115111
20542114101
21562013101
2260191290
2362191180
2463181180
2566171070
2666171070
276916960
287016950
297116850
307315840

Wind in September

Winds average 7 mph in September.

Across September, daily wind ranges from about 7 mph on the calmest days to 8 mph at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (mph)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197light breeze
208light breeze
218light breeze
228light breeze
238light breeze
248light breeze
258light breeze
268light breeze
278light breeze
288light breeze
298light breeze
308light breeze

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 54 min at the start of September to 11 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 78 minutes over September. Sunrise moves from 5:30 AM to 5:59 AM, and sunset from 6:27 PM to 5:36 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.95:306:27
212.95:316:25
312.95:326:23
412.85:336:21
512.85:346:20
612.75:356:18
712.75:366:16
812.65:376:15
912.65:386:13
1012.55:396:11
1112.55:406:09
1212.55:416:08
1312.45:426:06
1412.45:436:04
1512.35:446:02
1612.35:456:01
1712.25:465:59
1812.25:475:57
1912.15:485:55
2012.15:495:54
2112.05:505:52
2212.05:515:50
2311.95:525:48
2411.95:535:47
2511.85:545:45
2611.85:555:43
2711.85:565:41
2811.75:575:40
2911.75:585:38
3011.65:595:36

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.63 kWh/m².

For context, solar energy here swings from a low near 1.75 kWh/m² to a high of 6.38 kWh/m² in June across the year — September's 4.63 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.2Bright
25.1Bright
35.1Bright
45.1Bright
55.0Bright
65.0Bright
75.0Bright
84.9Bright
94.9Bright
104.8Bright
114.8Bright
124.8Bright
134.7Bright
144.7Bright
154.6Bright
164.6Bright
174.5Bright
184.5Bright
194.5Bright
204.4Bright
214.4Bright
224.3Bright
234.3Bright
244.3Bright
254.2Bright
264.2Bright
274.1Bright
284.1Bright
294.0Bright
304.0Moderate
Planning a trip in September

Is September a good time to visit North Peoria?

Our two travel scores rate September for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

7.2
Sightseeing
1st-best month of the year
6.2
Beach & pool
4th-best month of the year

September is one of the better times to visit North Peoria for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for North Peoria in September

From September's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In September, North Peoria sees daytime highs around 76°F and nights near 56°F. Worth packing: light clothes and sun protection. About 8 days see rain.

light clothessun protection

UV index in North Peoria in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 6 — 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 Peoria peaks around June 19 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateLowJun 19UV 9Dec 20UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr6High
May8Very high
Jun9Very high
Jul9Very high
Aug8Very high
Sep6High
Oct4Moderate
Nov3Moderate
Dec2Low

Air quality in North Peoria in September

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where September falls, not just the annual average.

Air quality in North Peoria is worst in July — around 16 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (October, 8 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodModerateGoodJul 1816 µg/m³Oct 228 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb13Moderate
Mar13Moderate
Apr11Good
May14Moderate
Jun14Moderate
Jul16Moderate
Aug14Moderate
Sep11Good
Oct8Good
Nov8Good
Dec9Good
Location & terrain

Where is North Peoria?

North Peoria sits at 40.7°N, 89.6°W, 633 ft above sea level, in United States. The nearest listed city is Peoria, 1.9 mi away.

Topography around North Peoria

How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of North Peoria.

Within 2 miles, the terrain around North Peoria has only modest variations in elevation — a maximum elevation change of 361 ft around an average of 600 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 456 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 584 ft.

The land around North Peoria is covered by trees (43%) and artificial surfaces (35%) within 2 miles, trees (44%) and cropland (25%) within 10 miles, and cropland (75%) within 50 miles.

2 miles
361 ft
10 miles
456 ft
50 miles
584 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Peoria 1.9 mi · East Peoria 3.7 mi · Washington 9.3 mi · Morton 9.9 mi · Pekin 11 mi · Normal 34 mi · Bloomington 35 mi · Galesburg 44 mi

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
Protestant 47%unaffiliated 23%Roman Catholic 21%Jewish 2%

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 Peoria (40.7175°, -89.5843°, elevation 633 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. 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).