Joliet
August
Weather in Joliet for August 2025
Your guide to Joliet weather in August - trends and predictions
In general, the average temperature in Joliet at the beginning of August is 27.7 °F. As the month progressed, temperatures tended to noticeably warm up, reaching an average of 30.1 °F by the end of August.
The climate of Joliet in August is notably wet, with an average of 15 rainy days.
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16
Dry days
15
Rainy days
0
Snow days
29°/16°
Temperatures
19 km/h
Avg max wind
71 %
Avg humidity
Joliet in August average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  30° | 2  28° | 3  30° | ||||
| 4 30° | 5  27° | 6 24° | 7 25° | 8 26° | 9 24° | 10 25° |
| 11 27° | 12  24° | 13 28° | 14 25° | 15 24° | 16 28° | 17 25° |
| 18  25° | 19 27° | 20 29° | 21 27° | 22 29° | 23 33° | 24 34° |
| 25 32° | 26  31° | 27 31° | 28 29° | 29 31° | 30 29° | 31 28° |
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Temperatures trend during August in Joliet
See the weather trend as well as the moving average line
August weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Aug. 1 | Patchy rain possible | 30° /19° | 2.4 mm | 7 | |
| Aug. 2 | Partly cloudy | 28° /18° | 0.1 mm | 7 | |
| Aug. 3 | Overcast | 30° /19° | 2.3 mm | 7 | |
| Aug. 4 | Patchy rain possible | 30° /17° | 0.3 mm | 7 | |
| Aug. 5 | Moderate or heavy rain shower | 27° /19° | 12.4 mm | 6 | |
| Aug. 6 | Patchy rain possible | 24° /18° | 2.1 mm | 6 | |
| Aug. 7 | Moderate rain at times | 25° /16° | 3.3 mm | 6 | |
| Aug. 8 | Patchy rain possible | 26° /14° | 0.2 mm | 6 | |
| Aug. 9 | Patchy rain possible | 24° /13° | 1.3 mm | 6 | |
| Aug. 10 | Patchy rain possible | 25° /12° | 10 mm | 6 | |
| Aug. 11 | Patchy rain possible | 27° /14° | 0.5 mm | 6 | |
| Aug. 12 | Cloudy | 24° /16° | 4.2 mm | 6 | |
| Aug. 13 | Patchy rain possible | 28° /15° | 0.4 mm | 7 | |
| Aug. 14 | Moderate or heavy rain shower | 25° /16° | 9.9 mm | 6 | |
| Aug. 15 | Patchy rain possible | 24° /16° | 5.2 mm | 5 | |
| Aug. 16 | Overcast | 28° /15° | 5.4 mm | 6 | |
| Aug. 17 | Moderate or heavy rain shower | 25° /16° | 8.4 mm | 6 | |
| Aug. 18 | Sunny | 25° /14° | 0.1 mm | 6 | |
| Aug. 19 | Sunny | 27° /14° | 0 mm | 6 | |
| Aug. 20 | Sunny | 29° /17° | 0 mm | 7 | |
| Aug. 21 | Cloudy | 27° /15° | 0 mm | 7 | |
| Aug. 22 | Overcast | 29° /15° | 0 mm | 7 | |
| Aug. 23 | Overcast | 33° /17° | 0 mm | 8 | |
| Aug. 24 | Cloudy | 34° /19° | 0.1 mm | 7 | |
| Aug. 25 | Patchy rain possible | 32° /19° | 4.5 mm | 7 | |
| Aug. 26 | Fog | 31° /17° | 0.4 mm | 7 | |
| Aug. 27 | Mist | 31° /18° | 0 mm | 7 | |
| Aug. 28 | Fog | 29° /15° | 3 mm | 6 | |
| Aug. 29 | Light rain shower | 31° /15° | 0.9 mm | 7 | |
| Aug. 30 | Overcast | 29° /16° | 4.2 mm | 7 | |
| Aug. 31 | Fog | 28° /13° | 0 mm | 6 | |
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Important Notice
Our weather forecast for Joliet 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 Joliet forecast closer to your planned date for the most up-to-date weather information.
Joliet in August - FAQ
What are the expected maximum and minimum temperatures in Joliet during August?
During August, expect a variety of temperatures with highs around 29° and lows near 16°, suitable for diverse activities and preferences.
How much rainfall should be expected in Joliet during August?
Moderate rainfall is anticipated in Joliet during August, with a total of 90.9 mm spread over approximately 15 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Joliet during August?
The average wind speed in Joliet during August is 19 km/h, suggesting breezy to windy conditions, depending on your activities.
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