Williamson County (Energy)
July
Weather in Williamson County, Illinois for July 2025
Your guide to Williamson County weather in July - trends and predictions
So far, July 2025 in Williamson County is slightly warmer than the historical average by 1.1 °F.
In general, the average temperature in Williamson County at the beginning of July is 30.4 °F. As the month progressed, temperatures tended to moderately rise, reaching an average of 31.6 °F by the end of July.
The climate of Williamson County in July is notably wet, with an average of 14 rainy days, and a total of 150.2 mm of precipitation.
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Temperatures
Rain 🌧️
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17
Dry days
14
Rainy days
0
Snow days
30°/19°
Temperatures
17 km/h
Avg max wind
72 %
Avg humidity
Williamson County Weather July
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Temperatures trend during July in Williamson County
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July weather in Williamson County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Jul. 1 |  Sunny | 27° /16° | 10.3 mm | 7 | |
| Jul. 2 | Sunny | 30° /18° | 0 mm | 8 | |
| Jul. 3 |  Patchy light rain with thunder | 33° /20° | 34.7 mm | 8 | |
| Jul. 4 |  Moderate or heavy rain with thunder | 32° /22° | 6.8 mm | 8 | |
| Jul. 5 |  Patchy rain possible | 30° /21° | 0.9 mm | 7 | |
| Jul. 6 |  Partly cloudy | 30° /20° | 3.9 mm | 7 | |
| Jul. 7 | Sunny | 31° /21° | 4.1 mm | 8 | |
| Jul. 8 | Partly cloudy | 33° /21° | 1.8 mm | 8 | |
| Jul. 9 | Light rain shower | 25° /21° | 22.1 mm | 6 | |
| Jul. 10 |  Fog | 30° /18° | 41 mm | 7 | |
| Jul. 11 | Partly cloudy | 32° /21° | 0 mm | 8 | |
| Jul. 12 | Patchy light rain with thunder | 33° /20° | 16.7 mm | 7 | |
| Jul. 13 | Patchy rain possible | 33° /21° | 7.7 mm | 7 | |
| Jul. 14 | Sunny | 31° /22° | 6.4 mm | 7 | |
| Jul. 15 | Sunny | 33° /23° | 3.6 mm | 8 | |
| Jul. 16 |  Thundery outbreaks possible | 34° /24° | 32 mm | 8 | |
| Jul. 17 | Light rain shower | 30° /23° | 5.7 mm | 7 | |
| Jul. 18 | Patchy rain possible | 28° /20° | 0 mm | 7 | |
| Jul. 19 | Mist | 30° /18° | 0 mm | 7 | |
| Jul. 20 | Sunny | 31° /20° | 0 mm | 8 | |
| Jul. 21 | Patchy rain possible | 33° /22° | 0 mm | 8 | |
| Jul. 22 |  Light drizzle | 32° /21° | 3.5 mm | 7 | |
| Jul. 23 | Light rain shower | 30° /22° | 2.2 mm | 7 | |
| Jul. 24 | Mist | 33° /22° | 0 mm | 7 | |
| Jul. 25 | Patchy rain possible | 31° /23° | 2.7 mm | 7 | |
| Jul. 26 | Light rain shower | 30° /22° | 1 mm | 7 | |
| Jul. 27 | Fog | 31° /22° | 0 mm | 7 | |
| Jul. 28 | Patchy light rain with thunder | 32° /22° | 4.9 mm | 7 | |
| Jul. 29 | Patchy light drizzle | 33° /23° | 1.3 mm | 8 | |
| Jul. 30 | Light rain shower | 35° /23° | 0.4 mm | 8 | |
| Jul. 31 | Patchy rain possible | 29° /21° | 2.5 mm | 2.5 | |
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Important Notice
Our weather forecast for Williamson County 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 Williamson County forecast closer to your planned date for the most up-to-date weather information.
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Williamson County in July - FAQ
What are the expected maximum and minimum temperatures in Williamson County during July?
Expect warm days with temperatures around 30°, cooling to mild conditions of 19° after sunset. Perfect for those who enjoy warm weather.
How much rainfall should be expected in Williamson County during July?
Significant rainfall exceeding 150.2 mm is expected in Williamson County during July, occurring over more than 14 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Williamson County during July?
The average wind speed in Williamson County during July is 17 km/h, suggesting breezy to windy conditions, depending on your activities.
July rainfall patterns in Williamson County
Explore the daily rainfall trends and prepare for Williamson Countys July weather 💧
UV exposure in Williamson County during July
Stay informed about UV levels for safe outdoor activities throughout the month of July ☀️
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Where is Williamson County?Get accurate weather forecasts for Williamson County, located at latitude 37.774 and longitude -89.026. Stay updated with localized weather information tailored for Williamson County.
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