Illinois (Chicago)
March
Weather in Illinois for March 2026
Your guide to Illinois weather in March - trends and predictions
Illinois typically experiences moderate snowfall in March, with an average of 9 snowy days.
According to Illinois snow forecast for March 2026, 1 snowy day is expected until the end of the month at Friday, March 27.Until now, March 2026 in Illinois has been nearly identical to the historical average, with a temperature of 7.2 °F (showing only a slight deviation of -0.3 °F).
The forecast for the upcoming days in Illinois predicts a temperature of 12.8 °F, which is slightly above the historical average.
In general, the average temperature in Illinois at the beginning of March is 6.9 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 10.7 °F by the end of March.
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Snow Forecast ❄️
Temperatures
More
5
Dry days
17
Rainy days
9
Snow days
7°/1°
Temperatures
25 km/h
Avg max wind
71 %
Avg humidity
Illinois Weather March
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What’s the Weather Like in Illinois This March?
Discover the average temperatures and weather trends across Illinois’s cities this March.
Temperatures trend during March in Illinois
See the weather trend as well as the moving average line
March weather in Illinois day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| Mar. 1 |  Cloudy | 4° /-1° | 0.1 mm | 0 cm | |
| Mar. 2 |  Overcast | 6° /-1° | 0.1 mm | 0 cm | |
| Mar. 3 |  Sunny | 6° /1° | 2.5 mm | 0.1 cm | |
| Mar. 4 | Overcast | 7° /2° | 3.9 mm | 0 cm | |
| Mar. 5 |  Light rain shower | 8° /1° | 6.3 mm | 0 cm | |
| Mar. 6 |  Partly cloudy | 10° /1° | 2.2 mm | 0 cm | |
| Mar. 7 | Cloudy | 7° /1° | 3.2 mm | 0.1 cm | |
| Mar. 8 | Overcast | 9° /1° | 3 mm | 0 cm | |
| Mar. 9 | Cloudy | 9° /1° | 0.8 mm | 0.2 cm | |
| Mar. 10 | Overcast | 9° /2° | 5 mm | 2 cm | |
| Mar. 11 | Overcast | 9° /1° | 25.8 mm | 0 cm | |
| Mar. 12 | Overcast | 6° /0° | 1.4 mm | 1 cm | |
| Mar. 13 | Partly cloudy | 7° /1° | 0.5 mm | 0 cm | |
| Mar. 14 | Overcast | 8° /1° | 2.7 mm | 0 cm | |
| Mar. 15 | Overcast | 9° /1° | 7.2 mm | 0.8 cm | |
| Mar. 16 | Overcast | 8° /0° | 3.1 mm | 0.4 cm | |
| Mar. 17 | Patchy rain possible | 7° /-2° | 2.2 mm | 0 cm | |
| Mar. 18 | Overcast | 5° /-1° | 3.6 mm | 0.5 cm | |
| Mar. 19 | Sunny | 8° /0° | 1 mm | 0 cm | |
| Mar. 20 | Sunny | 9° /0° | 1.3 mm | 0 cm | |
| Mar. 21 | Sunny | 26° /3° | 0 mm | 0 cm | |
| Mar. 22 | Overcast | 6° /1° | 0 mm | 0 cm | |
| Mar. 23 | Overcast | 6° /-1° | 0 mm | 0 cm | |
| Mar. 24 | Cloudy | 12° /0° | 0 mm | 0 cm | |
| Mar. 25 | Patchy rain possible | 13° /6° | 1.8 mm | 0 cm | |
| Mar. 26 | Patchy rain possible | 15° /4° | 1.4 mm | 0 cm | |
| Mar. 27 | Cloudy | 4° /0° | 0.1 mm | 0.1 cm | |
| Mar. 28 | Sunny | 5° /1° | 0 mm | 0 cm | |
| Mar. 29 | Sunny | 13° /0° | 0 mm | 0 cm | |
| Mar. 30 | Cloudy | 12° /4° | 0.1 mm | 0 cm | |
| Mar. 31 | Partly cloudy | 13° /5° | 0.1 mm | 0 cm | |
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Important Notice
Our weather forecast for Illinois in March 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 March - FAQ
What are the expected maximum and minimum temperatures in Illinois during March?
Prepare for cooler days with highs just around 7° and colder nights, dipping below 1°.
How much rainfall should be expected in Illinois during March?
Significant rainfall exceeding 130.4 mm is expected in Illinois during March, occurring over more than 17 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Illinois in March 2026?
Illinois experiences an average snowfall of 8.038 cm during March, occurring over 9 days.
What are the typical wind conditions in Illinois during March?
The average wind speed in Illinois during March is 25 km/h, suggesting breezy to windy conditions, depending on your activities.
Illinois snow forecast March 2026
Track daily snowfall levels and discover Illinois’s snowy potential this March ❄️
On average, Illinois sees 9 snowy days during March, with approximately 8 cm of total snowfall.
March rainfall patterns in Illinois
Explore the daily rainfall trends and prepare for Illinoiss March weather 💧
Typically, Illinois has 17 rainy days in March with a total of 130.4 mm of rainfall.
UV exposure in Illinois during March
Stay informed about UV levels for safe outdoor activities throughout the month of March ☀️
Counties in Illinois
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