Illinois (Chicago)
April
Weather in Illinois for April 2026
Your guide to Illinois weather in April - trends and predictions
With an average of 3 snowy days, Illinois usually enjoys a light touch of snow in April.
In general, the average temperature in Illinois at the beginning of April is 9.9 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 13.3 °F by the end of April.
Illinois experiences heavy rainfall in April, with over 20 rainy days and an average total precipitation 109.1 mm.
New! Chat with our AI weatherman - it’s amazing and free.
Snow Forecast ❄️
Temperatures
Rain 🌧️
More
5
Dry days
22
Rainy days
3
Snow days
12°/5°
Temperatures
23 km/h
Avg max wind
69 %
Avg humidity
Illinois Weather April
Move between months or click on a day
What’s the Weather Like in Illinois This April?
Discover the average temperatures and weather trends across Illinois’s cities this April.
Temperatures trend during April in Illinois
See the weather trend as well as the moving average line
April weather in Illinois day by day
Click on a date for more information
| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| Apr. 1 |  Overcast | 6° /0° | 1.4 mm | 0 cm | |
| Apr. 2 |  Sunny | 9° /1° | 16.2 mm | 0.4 cm | |
| Apr. 3 | Overcast | 9° /3° | 8.3 mm | 1 cm | |
| Apr. 4 |  Cloudy | 13° /4° | 12.6 mm | 0.6 cm | |
| Apr. 5 |  Patchy rain possible | 12° /5° | 9.8 mm | 0.1 cm | |
| Apr. 6 | Overcast | 11° /4° | 2.9 mm | 0 cm | |
| Apr. 7 |  Heavy rain at times | 9° /4° | 2.7 mm | 0 cm | |
| Apr. 8 |  Partly cloudy | 11° /4° | 2.9 mm | 0 cm | |
| Apr. 9 | Overcast | 10° /4° | 8.8 mm | 0 cm | |
| Apr. 10 | Overcast | 12° /5° | 2.8 mm | 0 cm | |
| Apr. 11 | Heavy rain at times | 12° /6° | 5.2 mm | 0 cm | |
| Apr. 12 | Patchy rain possible | 14° /6° | 1 mm | 0 cm | |
| Apr. 13 | Overcast | 16° /7° | 2 mm | 0 cm | |
| Apr. 14 | Overcast | 14° /7° | 0 mm | 0 cm | |
| Apr. 15 | Overcast | 13° /6° | 1.1 mm | 0 cm | |
| Apr. 16 | Partly cloudy | 11° /3° | 10.2 mm | 0 cm | |
| Apr. 17 | Overcast | 10° /4° | 1.8 mm | 0 cm | |
| Apr. 18 | Patchy rain possible | 12° /5° | 2.1 mm | 0 cm | |
| Apr. 19 | Overcast | 13° /5° | 0.5 mm | 0 cm | |
| Apr. 20 | Patchy rain possible | 10° /4° | 3.4 mm | 0 cm | |
| Apr. 21 | Heavy rain at times | 13° /5° | 7.1 mm | 0 cm | |
| Apr. 22 | Sunny | 13° /5° | 2.7 mm | 0 cm | |
| Apr. 23 | Light rain shower | 15° /7° | 2 mm | 0 cm | |
| Apr. 24 | Patchy rain possible | 13° /6° | 2.9 mm | 0 cm | |
| Apr. 25 | Cloudy | 10° /4° | 1.2 mm | 0 cm | |
| Apr. 26 | Overcast | 11° /3° | 2.3 mm | 0 cm | |
| Apr. 27 | Sunny | 16° /6° | 0.4 mm | 0 cm | |
| Apr. 28 |  Moderate rain at times | 16° /8° | 5.5 mm | 0 cm | |
| Apr. 29 | Heavy rain at times | 15° /7° | 6.3 mm | 0 cm | |
| Apr. 30 | Cloudy | 12° /6° | 3.1 mm | 0 cm | |
| Next | |||||
Important Notice
Our weather forecast for Illinois 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 Illinois forecast closer to your planned date for the most up-to-date weather information.
Change Month
Illinois in April - FAQ
What are the expected maximum and minimum temperatures in Illinois during April?
During April, expect a variety of temperatures with highs around 12° and lows near 5°, suitable for diverse activities and preferences.
How much rainfall should be expected in Illinois during April?
Significant rainfall exceeding 109.1 mm is expected in Illinois during April, occurring over more than 22 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Illinois in April 2026?
Illinois experiences an average snowfall of 2.615 cm during April, occurring over 3 days.
What are the typical wind conditions in Illinois during April?
The average wind speed in Illinois during April is 23 km/h, suggesting breezy to windy conditions, depending on your activities.
Illinois snow forecast April 2026
Track daily snowfall levels and discover Illinois’s snowy potential this April ❄️
April rainfall patterns in Illinois
Explore the daily rainfall trends and prepare for Illinoiss April weather 💧
Counties in Illinois
Select a county for an accurate weather forecast
Top locations in Illinois
Select a location for an accurate weather forecast
More Locations Quick links
More Illinois weather pages
You are here
Where is Illinois?Get accurate weather forecasts for Illinois, located at latitude 41.85 and longitude -87.65. Stay updated with localized weather information tailored for Illinois.
Found a mistake?
We appreciate your attention to details. Tell us here.