Naperville (IL)
August
Weather in Naperville, Illinois for August 2027
Your guide to Naperville weather in August - trends and predictions
In general, the average temperature in Naperville at the beginning of August is 27.4 °C. As the month progressed, temperatures tended to slightly decrease, reaching an average of 27.3 °C by the end of August.
The climate of Naperville in August is notably wet, with an average of 12 rainy days, and a total of 198.9 mm of precipitation.
Is August a good time to visit Naperville? check out the best time to travel to Naperville page.
✨ Is August a good time to visit Naperville? – Ask the AI Weatherman
Temperatures
Rain 🌧️
More
19
Dry days
12
Rainy days
0
Snow days
27°/17°
Temperatures
17 km/h
Avg max wind
73 %
Avg humidity
Naperville Weather August
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Temperatures trend during August in Naperville
See the weather trend as well as the moving average line
August weather in Naperville day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Aug. 1 |  Moderate rain | 27° /19° | 15.3 mm | 6 | |
| Aug. 2 |  Patchy rain possible | 27° /18° | 0.5 mm | 7 | |
| Aug. 3 |  Overcast | 29° /18° | 0.9 mm | 8 | |
| Aug. 4 | Patchy rain possible | 29° /18° | 0.2 mm | 8 | |
| Aug. 5 |  Moderate or heavy rain shower | 28° /20° | 5 mm | 6 | |
| Aug. 6 |  Light rain | 26° /18° | 3 mm | 7 | |
| Aug. 7 | Patchy rain possible | 27° /18° | 2 mm | 7 | |
| Aug. 8 | Light rain | 28° /19° | 2.9 mm | 7 | |
| Aug. 9 | Light rain | 28° /17° | 5.9 mm | 8 | |
| Aug. 10 | Moderate rain | 26° /17° | 15.6 mm | 6 | |
| Aug. 11 | Light rain | 27° /18° | 7 mm | 7 | |
| Aug. 12 |  Heavy rain | 27° /19° | 32.1 mm | 7 | |
| Aug. 13 | Moderate rain at times | 27° /18° | 7.8 mm | 7 | |
| Aug. 14 | Moderate or heavy rain shower | 27° /17° | 8.5 mm | 6 | |
| Aug. 15 | Moderate rain | 26° /18° | 12 mm | 5 | |
| Aug. 16 | Moderate or heavy rain shower | 29° /19° | 8.5 mm | 6 | |
| Aug. 17 | Moderate rain | 25° /18° | 12.6 mm | 6 | |
| Aug. 18 | Patchy rain possible | 26° /17° | 1.1 mm | 6 | |
| Aug. 19 | Patchy rain possible | 27° /17° | 0.4 mm | 6 | |
| Aug. 20 |  Sunny | 28° /17° | 0 mm | 7 | |
| Aug. 21 |  Cloudy | 26° /16° | 0.6 mm | 6 | |
| Aug. 22 | Overcast | 28° /17° | 0 mm | 7 | |
| Aug. 23 | Overcast | 30° /17° | 0 mm | 8 | |
| Aug. 24 |  Partly cloudy | 29° /16° | 0 mm | 8 | |
| Aug. 25 | Light rain | 27° /17° | 2.9 mm | 7 | |
| Aug. 26 | Patchy rain possible | 28° /16° | 0.5 mm | 6 | |
| Aug. 27 | Partly cloudy | 28° /17° | 0 mm | 7 | |
| Aug. 28 | Patchy rain possible | 28° /16° | 1.6 mm | 6 | |
| Aug. 29 | Light rain shower | 28° /16° | 1.2 mm | 6 | |
| Aug. 30 | Heavy rain | 26° /17° | 50 mm | 5 | |
| Aug. 31 | Patchy rain possible | 28° /17° | 1 mm | 5 | |
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Important Notice
Our weather forecast for Naperville in August 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 Naperville forecast closer to your planned date for the most up-to-date weather information.
Change Month
Naperville in August - FAQ
What are the expected maximum and minimum temperatures in Naperville during August?
During August, expect a variety of temperatures with highs around 27° and lows near 17°, suitable for diverse activities and preferences.
How much rainfall should be expected in Naperville during August?
Significant rainfall exceeding 198.9 mm is expected in Naperville during August, occurring over more than 12 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Naperville during August?
The average wind speed in Naperville during August is 17 km/h, suggesting breezy to windy conditions, depending on your activities.
August rainfall patterns in Naperville
Explore the daily rainfall trends and prepare for Napervilles August weather 💧
Typically, Naperville has 12 rainy days in August with a total of 198.9 mm of rainfall.
UV exposure in Naperville during August
Stay informed about UV levels for safe outdoor activities throughout the month of August ☀️
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