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Weather in Illinois for March 2026

Your guide to Illinois weather in March - trends and predictions

    Snow Forecast ❄️

  • Illinois typically experiences moderate snowfall in March, with an average of 9 snowy days.

    • Temperatures

  • In general, the average temperature in Illinois at the beginning of March is 6.9 °F. As the month progressed, temperatures tended to moderately rise, reaching an average of 8.4 °F by the end of March.

    • More

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Average dry days
5
Dry days
Average rainy days
17
Rainy days
Average snowy days
9
Snow days
Average temperatures
7°/1°
Temperatures
Average wind speed
25 km/h
Avg max wind
Average humidity
71 %
Avg humidity

Illinois Weather March

Move between months or click on a day
February
April
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Cloudy
5°
2
Partly cloudy
6°
3
Sunny
7°
4
Overcast
8°
5
Light rain shower
9°
6
Partly cloudy
8°
7
Cloudy
5°
8
Partly cloudy
7°
9
Cloudy
7°
10
Overcast
8°
11
Overcast
8°
12
Overcast
6°
13
Partly cloudy
8°
14
Partly cloudy
9°
15
Overcast
8°
16
Overcast
9°
17
Patchy rain possible
9°
18
Overcast
5°
19
Sunny
8°
20
Sunny
9°
21
Overcast
10°
22
Cloudy
10°
23
Moderate or heavy rain shower
8°
24
Patchy rain possible
8°
25
Moderate or heavy rain shower
7°
26
Patchy rain possible
6°
27
Sunny
6°
28
Overcast
9°
29
Overcast
9°
30
Overcast
13°
31
Light rain shower
9°

What’s the Weather Like in Illinois This March?

Discover the average temperatures and weather trends across Illinois’s cities this March.
CloudyChicago7 °F / 1 °FCloudyRockford9 °F / 1 °FCloudyPeoria12 °F / 3 °FCloudyDecatur13 °F / 4 °FCloudyAurora10 °F / 1 °FCloudySpringfield14 °F / 4 °FCloudyEffingham15 °F / 4 °FCloudyJoliet11 °F / 2 °FCloudyNaperville10 °F / 2 °FCloudyEnergy15 °F / 6 °FCloudyBolingbrook10 °F / 2 °FOvercastChampaign13 °F / 3 °FMore Locations

Temperatures trend during March in Illinois

See the weather trend as well as the moving average line

March weather in Illinois day by day

Click on a date for more information
February April
Date Weather Temperatures Rain Snow More
Mar. 1 Cloudy
Cloudy
 5° /-1° 0.1 mm 0 cm
Mar. 2 Partly cloudy
Partly cloudy
 6° /-1° 0.1 mm 0 cm
Mar. 3 Sunny
Sunny
 7° /1° 3 mm 0.2 cm
Mar. 4 Overcast
Overcast
 8° /2° 4.6 mm 0 cm
Mar. 5 Light rain shower
Light rain shower
 9° /1° 7.5 mm 0 cm
Mar. 6 Partly cloudy
Partly cloudy
 8° /1° 1.6 mm 0 cm
Mar. 7 Cloudy
Cloudy
 5° /0° 1.5 mm 0.1 cm
Mar. 8 Partly cloudy
Partly cloudy
 7° /1° 3.6 mm 0 cm
Mar. 9 Cloudy
Cloudy
 7° /0° 1 mm 0.2 cm
Mar. 10 Overcast
Overcast
 8° /1° 6 mm 2.4 cm
Mar. 11 Overcast
Overcast
 8° /1° 0.4 mm 0 cm
Mar. 12 Overcast
Overcast
 6° /0° 1.7 mm 1.2 cm
Mar. 13 Partly cloudy
Partly cloudy
 8° /0° 0.6 mm 0.1 cm
Mar. 14 Partly cloudy
Partly cloudy
 9° /2° 3.3 mm 0 cm
Mar. 15 Overcast
Overcast
 8° /1° 7.7 mm 0.9 cm
Mar. 16 Overcast
Overcast
 9° /2° 1.9 mm 0 cm
Mar. 17 Patchy rain possible
Patchy rain possible
 9° /0° 2.6 mm 0 cm
Mar. 18 Overcast
Overcast
 5° /0° 2.8 mm 0 cm
Mar. 19 Sunny
Sunny
 8° /0° 1.2 mm 0 cm
Mar. 20 Sunny
Sunny
 9° /0° 1.5 mm 0 cm
Mar. 21 Overcast
Overcast
 10° /2° 0.1 mm 0 cm
Mar. 22 Cloudy
Cloudy
 10° /3° 5 mm 0 cm
Mar. 23 Moderate or heavy rain shower
Moderate or heavy rain shower
 8° /3° 11.1 mm 0 cm
Mar. 24 Patchy rain possible
Patchy rain possible
 8° /2° 2.9 mm 0 cm
Mar. 25 Moderate or heavy rain shower
Moderate or heavy rain shower
 7° /2° 20.3 mm 2.5 cm
Mar. 26 Patchy rain possible
Patchy rain possible
 6° /0° 2.7 mm 0 cm
Mar. 27 Sunny
Sunny
 6° /1° 5.7 mm 0.1 cm
Mar. 28 Overcast
Overcast
 9° /1° 3.6 mm 0 cm
Mar. 29 Overcast
Overcast
 9° /1° 1.2 mm 0.3 cm
Mar. 30 Overcast
Overcast
 13° /3° 18.6 mm 0 cm
Mar. 31 Light rain shower
Light rain shower
 9° /3° 6.5 mm 0 cm
Next
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 ❄️

March rainfall patterns in Illinois

Explore the daily rainfall trends and prepare for Illinoiss March weather 💧
Counties in Illinois
Select a county for an accurate weather forecast
Champaign CountyCook CountyDuPage CountyEffingham CountyKane CountyMacon CountyPeoria CountySangamon CountyWill CountyWilliamson CountyWinnebago County
Top locations in Illinois
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AuroraChicagoDecaturEffinghamEnergyJolietNapervillePeoriaRockfordSpringfield
More Locations

Quick links

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Location coordinates 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.

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