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Peoria Heights (IL)
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Peoria Heights (IL)
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United States weather

Weather in Peoria Heights, Illinois for September 2025

Your guide to Peoria Heights weather in September - trends and predictions

    Temperatures

  • Until now, September 2025 in Peoria Heights is slightly cooler than the historical average by -0.8 °F.

  • The forecast for the upcoming days in Peoria Heights predicts a temperature of 31.2 °F, which is slightly above the historical average.

  • In general, the average temperature in Peoria Heights at the beginning of September is 25 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 31.4 °F by the end of September.

    • Rain 🌧️

  • With an average of 3 rainy days, Peoria Heights experiences minimal rainfall in September.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
27
Dry days
Average rainy days
3
Rainy days
Average snowy days
0
Snow days
Average temperatures
27°/14°
Temperatures
Average wind speed
19 km/h
Avg max wind
Average humidity
60 %
Avg humidity

Peoria Heights Weather September

Move between months or click on a day
August
October
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Sunny
27°
2
Sunny
25°
3
Partly cloudy
27°
4
Sunny
26°
5
Mist
27°
6
Partly cloudy
22°
7
Sunny
21°
8
Sunny
24°
9
Sunny
27°
10
Sunny
30°
11
Sunny
32°
12
Sunny
32°
13
Overcast
31°
14
Patchy rain possible
34°
15
Cloudy
32°
16
Sunny
34°
17
Sunny
33°
18
Sunny
34°
19
Patchy rain possible
23°
20
Patchy rain possible
30°
21
Patchy rain possible
24°
22
Partly cloudy
28°
23
Patchy rain possible
30°
24
Sunny
31°
25
Sunny
33°
26
Patchy rain possible
36°
27
Patchy rain possible
35°
28
Patchy rain possible
35°
29
Cloudy
25°
30
Fog
25°

Temperatures trend during September in Peoria Heights

See the weather trend as well as the moving average line

September weather in Peoria Heights day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
Sept. 1 Sunny
Sunny
 27° /12° 0 mm 7
Sept. 2 Sunny
Sunny
 25° /11° 0 mm 6
Sept. 3 Partly cloudy
Partly cloudy
 27° /12° 29 mm 7
Sept. 4 Sunny
Sunny
 26° /10° 0 mm 6
Sept. 5 Mist
Mist
 27° /15° 0 mm 6
Sept. 6 Partly cloudy
Partly cloudy
 22° /9° 0 mm 6
Sept. 7 Sunny
Sunny
 21° /5° 0 mm 6
Sept. 8 Sunny
Sunny
 24° /6° 0 mm 6
Sept. 9 Sunny
Sunny
 27° /9° 0 mm 6
Sept. 10 Sunny
Sunny
 30° /12° 0 mm 8
Sept. 11 Sunny
Sunny
 32° /15° 0 mm 8
Sept. 12 Sunny
Sunny
 32° /15° 0 mm 8
Sept. 13 Overcast
Overcast
 31° /18° 0 mm 7
Sept. 14 Patchy rain possible
Patchy rain possible
 34° /18° 0 mm 8
Sept. 15 Cloudy
Cloudy
 32° /19° 0 mm 7
Sept. 16 Sunny
Sunny
 34° /13° 0 mm 1.5
Sept. 17 Sunny
Sunny
 33° /12° 0 mm 1.5
Sept. 18 Sunny
Sunny
 34° /15° 0 mm 1.4
Sept. 19 Patchy rain possible
Patchy rain possible
 23° /18° 1.7 mm 0.3
Sept. 20 Patchy rain possible
Patchy rain possible
 30° /18° 0.5 mm 0
Sept. 21 Patchy rain possible
Patchy rain possible
 24° /16° 0.4 mm 4
Sept. 22 Partly cloudy
Partly cloudy
 28° /19° 0 mm 6
Sept. 23 Patchy rain possible
Patchy rain possible
 30° /17° 0.2 mm 5
Sept. 24 Sunny
Sunny
 31° /14° 0 mm 6
Sept. 25 Sunny
Sunny
 33° /16° 0 mm 6
Sept. 26 Patchy rain possible
Patchy rain possible
 36° /20° 0.1 mm 6
Sept. 27 Patchy rain possible
Patchy rain possible
 35° /20° 0.4 mm 6
Sept. 28 Patchy rain possible
Patchy rain possible
 35° /23° 0.1 mm 6
Sept. 29 Cloudy
Cloudy
 25° /17° 0 mm 6
Sept. 30 Fog
Fog
 25° /16° 0 mm 6
Next
Important Notice
Our weather forecast for Peoria Heights in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Peoria Heights forecast closer to your planned date for the most up-to-date weather information.
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Peoria Heights in September - FAQ

What are the expected maximum and minimum temperatures in Peoria Heights during September?
Enjoy moderate daytime temperatures of up to 27° and cooler nights around 14°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Peoria Heights during September?
Moderate rainfall is anticipated in Peoria Heights during September, with a total of 50.4 mm spread over approximately 3 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Peoria Heights during September?
The average wind speed in Peoria Heights during September is 19 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Peoria Heights

Explore the daily rainfall trends and prepare for Peoria Heightss September weather 💧

UV exposure in Peoria Heights during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️

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Location coordinates Where is Peoria Heights?

Get accurate weather forecasts for Peoria Heights, located at latitude 40.747 and longitude -89.574. Stay updated with localized weather information tailored for Peoria Heights.

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