Will County (Joliet)
August
Weather in Will County, Illinois for August 2026
Your guide to Will County weather in August - trends and predictions
Expect cooler weather in the next days in Will County with the forecast suggesting a temperature of 25.1 °F, lower than the historical average.
In general, the average temperature in Will County at the beginning of August is 28.1 °F. As the month progressed, temperatures tended to moderately fall, reaching an average of 27.6 °F by the end of August.
Will County in August brings notable rainfall, with an average of 17 rainy days and a total precipitation of 82.8 mm.
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Temperatures
Rain 🌧️
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14
Dry days
17
Rainy days
0
Snow days
27°/16°
Temperatures
18 km/h
Avg max wind
75 %
Avg humidity
Will County Weather August
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Temperatures trend during August in Will County
See the weather trend as well as the moving average line
August weather in Will County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Aug. 1 |  Patchy rain possible | 27° /18° | 11.9 mm | 6 | |
| Aug. 2 |  Fog | 27° /17° | 0.5 mm | 8 | |
| Aug. 3 |  Overcast | 30° /17° | 1.2 mm | 8 | |
| Aug. 4 | Patchy rain possible | 30° /16° | 0.2 mm | 8 | |
| Aug. 5 |  Moderate or heavy rain shower | 27° /19° | 8.9 mm | 7 | |
| Aug. 6 |  Sunny | 28° /19° | 0.5 mm | 2.6 | |
| Aug. 7 | Patchy rain possible | 28° /19° | 1.1 mm | 8.1 | |
| Aug. 8 | Sunny | 29° /20° | 0.3 mm | 6.8 | |
| Aug. 9 | Sunny | 23° /19° | 41.5 mm | 7.3 | |
| Aug. 10 |  Thundery outbreaks possible | 28° /21° | 15.4 mm | 7 | |
| Aug. 11 | Light rain shower | 23° /18° | 19.2 mm | 5 | |
| Aug. 12 | Mist | 27° /18° | 5.2 mm | 7 | |
| Aug. 13 | Mist | 24° /17° | 0.8 mm | 6 | |
| Aug. 14 | Sunny | 25° /16° | 4.8 mm | 6 | |
| Aug. 15 | Fog | 22° /18° | 8.9 mm | 5 | |
| Aug. 16 | Fog | 23° /18° | 0.6 mm | 5 | |
| Aug. 17 |  Partly cloudy | 23° /15° | 0 mm | 6 | |
| Aug. 18 | Sunny | 23° /14° | 0 mm | 6 | |
| Aug. 19 | Sunny | 25° /14° | 0 mm | 6 | |
| Aug. 20 | Sunny | 29° /17° | 0 mm | 7 | |
| Aug. 21 |  Cloudy | 26° /15° | 0 mm | 6 | |
| Aug. 22 | Overcast | 28° /16° | 0 mm | 6 | |
| Aug. 23 | Overcast | 32° /16° | 0 mm | 7 | |
| Aug. 24 | Cloudy | 31° /16° | 0 mm | 6 | |
| Aug. 25 | Patchy rain possible | 28° /15° | 3 mm | 6 | |
| Aug. 26 | Fog | 28° /13° | 0.3 mm | 6 | |
| Aug. 27 | Mist | 28° /15° | 0 mm | 6 | |
| Aug. 28 | Fog | 27° /14° | 2 mm | 6 | |
| Aug. 29 | Light rain shower | 29° /14° | 0.6 mm | 6 | |
| Aug. 30 | Overcast | 27° /15° | 2.8 mm | 6 | |
| Aug. 31 | Fog | 26° /13° | 0 mm | 6 | |
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Important Notice
Our weather forecast for Will County 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 Will County forecast closer to your planned date for the most up-to-date weather information.
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Will County in August - FAQ
What are the expected maximum and minimum temperatures in Will County during August?
During August, expect a variety of temperatures with highs around 27° and lows near 16°, suitable for diverse activities and preferences.
How much rainfall should be expected in Will County during August?
Moderate rainfall is anticipated in Will County during August, with a total of 82.8 mm spread over approximately 17 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Will County during August?
The average wind speed in Will County during August is 18 km/h, suggesting breezy to windy conditions, depending on your activities.
August rainfall patterns in Will County
Explore the daily rainfall trends and prepare for Will Countys August weather 💧
Typically, Will County has 17 rainy days in August with a total of 82.8 mm of rainfall.
UV exposure in Will County during August
Stay informed about UV levels for safe outdoor activities throughout the month of August ☀️
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Where is Will County?Get accurate weather forecasts for Will County, located at latitude 41.525 and longitude -88.083. Stay updated with localized weather information tailored for Will County.
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