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United States weather

Weather in Cook County, Illinois for March 2026

Your guide to Cook County weather in March - trends and predictions

    Snow Forecast ❄️

  • Cook County typically experiences moderate snowfall in March, with an average of 9 snowy days.
    According to Cook County snow forecast for March 2026, no snow is expected until the end of the month.

    • Temperatures

  • Until now, March 2026 in Cook County 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 next days in Cook County predicts temperatures to be around 14 °F, close to the historical average.

  • In general, the average temperature in Cook County at the beginning of March is 6.9 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 14.1 °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

Cook County Weather March

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

Temperatures trend during March in Cook County

See the weather trend as well as the moving average line

March weather in Cook County day by day

Click on a date for more information
February April
Date Weather Temperatures Rain Snow More
Mar. 1 Cloudy
Cloudy
 4° /-1° 0.1 mm 0 cm
Mar. 2 Overcast
Overcast
 6° /-1° 0.1 mm 0 cm
Mar. 3 Sunny
Sunny
 6° /1° 2.5 mm 0.1 cm
Mar. 4 Overcast
Overcast
 7° /2° 3.9 mm 0 cm
Mar. 5 Light rain shower
Light rain shower
 8° /1° 6.3 mm 0 cm
Mar. 6 Partly cloudy
Partly cloudy
 10° /1° 2.2 mm 0 cm
Mar. 7 Cloudy
Cloudy
 7° /1° 3.2 mm 0.1 cm
Mar. 8 Overcast
Overcast
 9° /1° 3 mm 0 cm
Mar. 9 Cloudy
Cloudy
 9° /1° 0.8 mm 0.2 cm
Mar. 10 Overcast
Overcast
 9° /2° 5 mm 2 cm
Mar. 11 Overcast
Overcast
 9° /1° 25.8 mm 0 cm
Mar. 12 Overcast
Overcast
 6° /0° 1.4 mm 1 cm
Mar. 13 Partly cloudy
Partly cloudy
 7° /1° 0.5 mm 0 cm
Mar. 14 Overcast
Overcast
 8° /1° 2.7 mm 0 cm
Mar. 15 Overcast
Overcast
 9° /1° 7.2 mm 0.8 cm
Mar. 16 Overcast
Overcast
 8° /0° 3.1 mm 0.4 cm
Mar. 17 Patchy rain possible
Patchy rain possible
 7° /-2° 2.2 mm 0 cm
Mar. 18 Overcast
Overcast
 5° /-1° 3.6 mm 0.5 cm
Mar. 19 Sunny
Sunny
 8° /0° 1 mm 0 cm
Mar. 20 Sunny
Sunny
 9° /0° 1.3 mm 0 cm
Mar. 21 Partly cloudy
Partly cloudy
 19° /2° 0 mm 0 cm
Mar. 22 Moderate rain
Moderate rain
 10° /1° 11.6 mm 0 cm
Mar. 23 Partly cloudy
Partly cloudy
 6° /-2° 0 mm 0 cm
Mar. 24 Partly cloudy
Partly cloudy
 12° /1° 0 mm 0 cm
Mar. 25 Patchy rain possible
Patchy rain possible
 15° /7° 0.6 mm 0 cm
Mar. 26 Partly cloudy
Partly cloudy
 18° /6° 0 mm 0 cm
Mar. 27 Partly cloudy
Partly cloudy
 4° /0° 0.1 mm 0 cm
Mar. 28 Patchy rain possible
Patchy rain possible
 9° /3° 1.4 mm 0 cm
Mar. 29 Moderate rain
Moderate rain
 6° /6° 7.5 mm 0 cm
Mar. 30 Patchy rain possible
Patchy rain possible
 24° /7° 3 mm 0 cm
Mar. 31 Patchy rain possible
Patchy rain possible
 23° /17° 0 mm 0 cm
Next
Important Notice
Our weather forecast for Cook County 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 Cook County forecast closer to your planned date for the most up-to-date weather information.
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Cook County in March - FAQ

What are the expected maximum and minimum temperatures in Cook County during March?

Prepare for cooler days with highs just around 7° and colder nights, dipping below 1°.

How much rainfall should be expected in Cook County during March?

Significant rainfall exceeding 130.4 mm is expected in Cook County during March, occurring over more than 17 days. Preparing for wet conditions is recommended in your planning.

Will it snow in Cook County in March 2026?

Cook County experiences an average snowfall of 8.038 cm during March, occurring over 9 days.

What are the typical wind conditions in Cook County during March?

The average wind speed in Cook County during March is 25 km/h, suggesting breezy to windy conditions, depending on your activities.

Cook County snow forecast March 2026

Track daily snowfall levels and discover Cook County’s snowy potential this March ❄️
On average, Cook County sees 9 snowy days during March, with approximately 8 cm of total snowfall.

March rainfall patterns in Cook County

Explore the daily rainfall trends and prepare for Cook Countys March weather 💧
Typically, Cook County has 17 rainy days in March with a total of 130.4 mm of rainfall.

UV exposure in Cook County during March

Stay informed about UV levels for safe outdoor activities throughout the month of March ☀️
Top locations in Cook County
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Chicago
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Location coordinates Where is Cook County?

Get accurate weather forecasts for Cook County, located at latitude 41.85 and longitude -87.65. Stay updated with localized weather information tailored for Cook County.

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