DuPage County (Naperville)
October
Weather in DuPage County, Illinois for October 2025
Your guide to DuPage County weather in October - trends and predictions
Until now, October 2025 in DuPage County has been nearly identical to the historical average, with a temperature of 18.1 °F (showing only a slight deviation of -0.3 °F).
In general, the average temperature in DuPage County at the beginning of October is 24.3 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 14.3 °F by the end of October.
The climate of DuPage County in October is notably wet, with an average of 12 rainy days, and a total of 88.1 mm of precipitation.
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Temperatures
Rain 🌧️
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19
Dry days
12
Rainy days
0
Snow days
18°/8°
Temperatures
21 km/h
Avg max wind
66 %
Avg humidity
DuPage County Weather October
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Temperatures trend during October in DuPage County
See the weather trend as well as the moving average line
October weather in DuPage County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Oct. 1 |  Fog | 24° /13° | 0 mm | 5 | |
| Oct. 2 |  Partly cloudy | 26° /12° | 0 mm | 7 | |
| Oct. 3 | Partly cloudy | 28° /12° | 0 mm | 7 | |
| Oct. 4 |  Overcast | 27° /16° | 1.9 mm | 6 | |
| Oct. 5 |  Light rain shower | 26° /15° | 10.7 mm | 6 | |
| Oct. 6 | Light rain shower | 22° /12° | 5.2 mm | 5 | |
| Oct. 7 | Patchy rain possible | 17° /6° | 3.2 mm | 4 | |
| Oct. 8 | Patchy rain possible | 16° /6° | 0.1 mm | 4 | |
| Oct. 9 |  Sunny | 17° /6° | 0 mm | 5 | |
| Oct. 10 | Sunny | 18° /6° | 0 mm | 5 | |
| Oct. 11 |  Light rain | 21° /7° | 1.8 mm | 5 | |
| Oct. 12 | Light rain shower | 17° /10° | 10.6 mm | 4 | |
| Oct. 13 | Overcast | 16° /10° | 15.8 mm | 4 | |
| Oct. 14 | Light rain shower | 15° /10° | 1.7 mm | 3 | |
| Oct. 15 | Light rain shower | 12° /7° | 1.6 mm | 3 | |
| Oct. 16 | Overcast | 15° /5° | 0 mm | 4 | |
| Oct. 17 | Overcast | 18° /7° | 0 mm | 5 | |
| Oct. 18 | Overcast | 20° /7° | 0 mm | 5 | |
| Oct. 19 | Light rain | 17° /8° | 6.8 mm | 4 | |
| Oct. 20 | Patchy rain possible | 17° /6° | 1 mm | 4 | |
| Oct. 21 | Patchy rain possible | 18° /8° | 0 mm | 4 | |
| Oct. 22 | Fog | 16° /5° | 0 mm | 4 | |
| Oct. 23 | Overcast | 17° /4° | 0 mm | 4 | |
| Oct. 24 |  Cloudy | 18° /4° | 0.1 mm | 4 | |
| Oct. 25 | Light rain | 15° /9° | 5.8 mm | 4 | |
| Oct. 26 | Light drizzle | 17° /10° | 0.4 mm | 4 | |
| Oct. 27 | Fog | 17° /6° | 1.6 mm | 4 | |
| Oct. 28 | Overcast | 13° /3° | 0 mm | 3 | |
| Oct. 29 | Overcast | 15° /8° | 3.9 mm | 4 | |
| Oct. 30 | Overcast | 13° /6° | 0 mm | 3 | |
| Oct. 31 |  Moderate rain | 10° /5° | 5.7 mm | 0.6 | |
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Important Notice
Our weather forecast for DuPage County in October 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 DuPage County forecast closer to your planned date for the most up-to-date weather information.
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DuPage County in October - FAQ
What are the expected maximum and minimum temperatures in DuPage County during October?
Enjoy moderate daytime temperatures of up to 18° and cooler nights around 8°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in DuPage County during October?
Moderate rainfall is anticipated in DuPage County during October, with a total of 88.1 mm spread over approximately 12 days. Considering plans for rainy days is advisable.
Will it snow in DuPage County in October 2025?
DuPage County typically sees 0.03 cm of snowfall during October.
What are the typical wind conditions in DuPage County during October?
The average wind speed in DuPage County during October is 21 km/h, suggesting breezy to windy conditions, depending on your activities.
October rainfall patterns in DuPage County
Explore the daily rainfall trends and prepare for DuPage Countys October weather 💧
UV exposure in DuPage County during October
Stay informed about UV levels for safe outdoor activities throughout the month of October ☀️
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Where is DuPage County?Get accurate weather forecasts for DuPage County, located at latitude 41.786 and longitude -88.147. Stay updated with localized weather information tailored for DuPage County.
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