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.
According to Illinois snow forecast for April 2026, no snow is expected at the beginning of the month.An exceptional deviation from the historical average is forecasted for first days of April 2026 in Illinois with the forecasted temperature being 12.8 °F, much lower than usual.
In general, the average temperature in Illinois at the beginning of April is 14.1 °F. As the month progressed, temperatures tended to moderately fall, 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 129.2 mm.
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Snow Forecast ❄️
Temperatures
Rain 🌧️
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3
Dry days
24
Rainy days
3
Snow days
12°/5°
Temperatures
23 km/h
Avg max wind
71 %
Avg humidity
Illinois Weather April
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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
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| Apr. 1 |  Patchy rain possible | 20° /12° | 0.1 mm | 0 cm | |
| Apr. 2 | Patchy rain possible | 12° /5° | 1.6 mm | 0 cm | |
| Apr. 3 | Patchy rain possible | 22° /16° | 0.5 mm | 0 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 | |
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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.
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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 129.2 mm is expected in Illinois during April, occurring over more than 24 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Illinois in April 2026?
Illinois experiences an average snowfall of 2.092 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 ❄️
On average, Illinois sees 3 snowy days during April, with approximately 2.1 cm of total snowfall.
April rainfall patterns in Illinois
Explore the daily rainfall trends and prepare for Illinoiss April weather 💧
Typically, Illinois has 24 rainy days in April with a total of 129.2 mm of rainfall.
UV exposure in Illinois during April
Stay informed about UV levels for safe outdoor activities throughout the month of April ☀️
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