Williamson County (Energy)
April
Weather in Williamson County, Illinois for April 2027
Your guide to Williamson County weather in April - trends and predictions
In general, the average temperature in Williamson County at the beginning of April is 17.9 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 22.6 °F by the end of April.
Williamson County experiences heavy rainfall in April, with over 20 rainy days and an average total precipitation 402.6 mm.
New! Chat with our AI weatherman - it’s amazing and free.
Temperatures
Rain 🌧️
More
9
Dry days
21
Rainy days
0
Snow days
19°/10°
Temperatures
24 km/h
Avg max wind
75 %
Avg humidity
Williamson County Weather April
Move between months or click on a day
Temperatures trend during April in Williamson County
See the weather trend as well as the moving average line
April weather in Williamson County day by day
Click on a date for more information
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Apr. 1 |  Overcast | 22° /12° | 1.5 mm | 5 | |
| Apr. 2 |  Thundery outbreaks possible | 23° /12° | 19.8 mm | 4 | |
| Apr. 3 |  Light rain shower | 18° /10° | 38.7 mm | 4 | |
| Apr. 4 |  Light snow showers | 18° /7° | 36.5 mm | 3 | |
| Apr. 5 |  Fog | 15° /4° | 57.3 mm | 5 | |
| Apr. 6 |  Partly cloudy | 13° /3° | 36.6 mm | 4 | |
| Apr. 7 | Light rain shower | 16° /4° | 0.8 mm | 5 | |
| Apr. 8 | Partly cloudy | 19° /4° | 0 mm | 6 | |
| Apr. 9 | Light rain shower | 20° /9° | 0.7 mm | 5 | |
| Apr. 10 | Light rain shower | 20° /11° | 11.3 mm | 5 | |
| Apr. 11 | Light rain shower | 16° /9° | 21.6 mm | 3 | |
| Apr. 12 |  Sunny | 19° /8° | 0 mm | 5 | |
| Apr. 13 |  Cloudy | 24° /11° | 0 mm | 5 | |
| Apr. 14 |  Patchy light rain with thunder | 23° /15° | 0.7 mm | 5 | |
| Apr. 15 |  Patchy light drizzle | 23° /14° | 0.1 mm | 6 | |
| Apr. 16 | Light rain shower | 23° /13° | 12.4 mm | 6 | |
| Apr. 17 | Patchy rain possible | 24° /14° | 0.1 mm | 6 | |
| Apr. 18 | Light rain shower | 22° /11° | 5.7 mm | 4 | |
| Apr. 19 | Overcast | 19° /9° | 2.2 mm | 6 | |
| Apr. 20 | Partly cloudy | 20° /8° | 0 mm | 6 | |
| Apr. 21 | Overcast | 20° /9° | 14.4 mm | 6 | |
| Apr. 22 | Overcast | 20° /7° | 0 mm | 6 | |
| Apr. 23 | Patchy rain possible | 24° /10° | 1.8 mm | 7 | |
| Apr. 24 | Cloudy | 21° /12° | 6.4 mm | 6 | |
| Apr. 25 | Cloudy | 22° /11° | 1.4 mm | 6 | |
| Apr. 26 | Overcast | 22° /11° | 3 mm | 6 | |
| Apr. 27 |  Moderate or heavy rain shower | 22° /14° | 30.3 mm | 5 | |
| Apr. 28 | Patchy rain possible | 26° /15° | 3.5 mm | 7 | |
| Apr. 29 | Light rain shower | 22° /14° | 25.2 mm | 5 | |
| Apr. 30 | Fog | 23° /12° | 7 mm | 7 | |
| Next | |||||
Important Notice
Our weather forecast for Williamson County in April 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.
Change Month
Williamson County in April - FAQ
What are the expected maximum and minimum temperatures in Williamson County during April?
Enjoy moderate daytime temperatures of up to 19° and cooler nights around 10°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Williamson County during April?
Significant rainfall exceeding 402.6 mm is expected in Williamson County during April, occurring over more than 21 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Williamson County in April 2027?
Williamson County typically sees 0.035 cm of snowfall during April.
What are the typical wind conditions in Williamson County during April?
The average wind speed in Williamson County during April is 24 km/h, suggesting breezy to windy conditions, depending on your activities.
April rainfall patterns in Williamson County
Explore the daily rainfall trends and prepare for Williamson Countys April weather 💧
Typically, Williamson County has 21 rainy days in April with a total of 402.6 mm of rainfall.
UV exposure in Williamson County during April
Stay informed about UV levels for safe outdoor activities throughout the month of April ☀️
Top locations in Williamson County
Select a location for an accurate weather forecast
More Locations Quick links
More Williamson County weather pages
You are here
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.
Found a mistake?
We appreciate your attention to details. Tell us here.