Joliet (IL)
July
Weather in Joliet, Illinois for July 2026
Your guide to Joliet weather in July - trends and predictions
So far, July 2026 in Joliet shows a warmer trend than usual by 2.4 °C.
The forecast for the next days in Joliet predicts temperatures to be around 27 °C, close to the historical average.
In general, the average temperature in Joliet at the beginning of July is 29 °C. As the month progressed, temperatures tended to slightly decrease, reaching an average of 28.6 °C by the end of July.
Joliet experiences heavy rainfall in July, with over 20 rainy days and an average total precipitation 182.8 mm.
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Temperatures
Rain 🌧️
More
10
Dry days
21
Rainy days
0
Snow days
29°/18°
Temperatures
16 km/h
Avg max wind
77 %
Avg humidity
Joliet Weather July
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Temperatures trend during July in Joliet
See the weather trend as well as the moving average line
July weather in Joliet day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Jul. 1 |  Overcast | 29° /17° | 8.9 mm | 8 | |
| Jul. 2 |  Moderate or heavy rain shower | 29° /18° | 7.2 mm | 8 | |
| Jul. 3 | Overcast | 31° /19° | 6.7 mm | 8 | |
| Jul. 4 |  Partly cloudy | 30° /19° | 14.8 mm | 7 | |
| Jul. 5 | Moderate or heavy rain shower | 29° /18° | 5.6 mm | 8 | |
| Jul. 6 |  Patchy rain possible | 27° /17° | 19.7 mm | 7 | |
| Jul. 7 | Patchy rain possible | 28° /16° | 1.1 mm | 8 | |
| Jul. 8 | Moderate or heavy rain shower | 29° /16° | 8.9 mm | 8 | |
| Jul. 9 |  Cloudy | 29° /18° | 11.4 mm | 8 | |
| Jul. 10 |  Sunny | 28° /17° | 2.2 mm | 7 | |
| Jul. 11 |  Heavy rain at times | 31° /18° | 9.7 mm | 9 | |
| Jul. 12 | Moderate or heavy rain shower | 30° /19° | 8.5 mm | 8 | |
| Jul. 13 | Patchy rain possible | 29° /18° | 0.6 mm | 7 | |
| Jul. 14 | Overcast | 32° /19° | 0 mm | 8 | |
| Jul. 15 | Partly cloudy | 31° /21° | 5.7 mm | 8 | |
| Jul. 16 | Overcast | 31° /20° | 22.5 mm | 8 | |
| Jul. 17 | Overcast | 27° /18° | 2.5 mm | 7 | |
| Jul. 18 | Overcast | 28° /16° | 0.8 mm | 7 | |
| Jul. 19 | Sunny | 29° /16° | 8.8 mm | 8 | |
| Jul. 20 | Sunny | 34° /16° | 0.4 mm | 6.5 | |
| Jul. 21 | Sunny | 27° /19° | 2.5 mm | 8.8 | |
| Jul. 22 | Sunny | 22° /12° | 0 mm | 9.1 | |
| Jul. 23 | Sunny | 24° /13° | 0 mm | 9.1 | |
| Jul. 24 | Sunny | 24° /14° | 0 mm | 6 | |
| Jul. 25 | Sunny | 28° /14° | 0.1 mm | 7 | |
| Jul. 26 | Sunny | 28° /17° | 0 mm | 7 | |
| Jul. 27 | Sunny | 28° /18° | 0 mm | 7 | |
| Jul. 28 | Sunny | 32° /21° | 10.7 mm | 8 | |
| Jul. 29 | Sunny | 32° /22° | 1.3 mm | 8 | |
| Jul. 30 | Sunny | 28° /18° | 0.6 mm | 7 | |
| Jul. 31 | Sunny | 24° /15° | 0.2 mm | 6 | |
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Important Notice
Our weather forecast for Joliet in July 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.
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Joliet in July - FAQ
What are the expected maximum and minimum temperatures in Joliet during July?
During July, expect a variety of temperatures with highs around 29° and lows near 18°, suitable for diverse activities and preferences.
How much rainfall should be expected in Joliet during July?
Significant rainfall exceeding 182.8 mm is expected in Joliet during July, occurring over more than 21 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Joliet during July?
The average wind speed in Joliet during July is 16 km/h, suggesting breezy to windy conditions, depending on your activities.
July rainfall patterns in Joliet
Explore the daily rainfall trends and prepare for Joliets July weather 💧
Typically, Joliet has 21 rainy days in July with a total of 182.8 mm of rainfall.
UV exposure in Joliet during July
Stay informed about UV levels for safe outdoor activities throughout the month of July ☀️
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Where is Joliet?Get accurate weather forecasts for Joliet, located at latitude 41.525 and longitude -88.083. Stay updated with localized weather information tailored for Joliet.
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