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United States weather

Weather in Chicago, Illinois for January 2026

Your guide to Chicago weather in January - trends and predictions

    Snow Forecast ❄️

  • Expect heavy snowfall in Chicago during January, with an average of 17 snowy days.
    According to Chicago snow forecast for January 2026, 2 snowy days are expected until the end of the month. The closest date with snow is Friday, January 30.

    • Temperatures

  • Until now, January 2026 in Chicago is slightly cooler than the historical average by -0.8 °F.

  • The forecast for the coming days of January 2026 predicts a temperature of -4.9 °F , which is warmer than usual.

  • In general, the average temperature in Chicago at the beginning of January is 1.1 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of -5.9 °F by the end of January.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
10
Dry days
Average rainy days
4
Rainy days
Average snowy days
17
Snow days
Average temperatures
0°/-5°
Temperatures
Average wind speed
23 km/h
Avg max wind
Average humidity
79 %
Avg humidity

Chicago Weather January

Move between months or click on a day
December
February
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Overcast
2°
2
Overcast
2°
3
Overcast
2°
4
Overcast
1°
5
Overcast
1°
6
Overcast
0°
7
Overcast
0°
8
Overcast
2°
9
Overcast
4°
10
Overcast
0°
11
Overcast
2°
12
Overcast
3°
13
Overcast
2°
14
Overcast
-2°
15
Overcast
-3°
16
Overcast
0°
17
Overcast
0°
18
Overcast
0°
19
Light freezing rain
-3°
20
Partly cloudy
-5°
21
Sunny
-3°
22
Overcast
-1°
23
Overcast
-3°
24
Patchy moderate snow
-2°
25
Patchy moderate snow
-1°
26
Partly cloudy
-3°
27
Sunny
-8°
28
Sunny
-9°
29
Sunny
-7°
30
Moderate or heavy snow showers
-8°
31
Heavy snow
-5°

Temperatures trend during January in Chicago

See the weather trend as well as the moving average line

January weather in Chicago day by day

Click on a date for more information
December February
Date Weather Temperatures Rain Snow More
Jan. 1 Overcast
Overcast
 2° /-3° 5.7 mm 3.2 cm
Jan. 2 Overcast
Overcast
 2° /-3° 0.5 mm 0.1 cm
Jan. 3 Overcast
Overcast
 2° /-3° 3.3 mm 0.4 cm
Jan. 4 Overcast
Overcast
 1° /-4° 0 mm 0 cm
Jan. 5 Overcast
Overcast
 1° /-4° 0.2 mm 0 cm
Jan. 6 Overcast
Overcast
 0° /-3° 1.7 mm 0.5 cm
Jan. 7 Overcast
Overcast
 0° /-4° 0.1 mm 0.1 cm
Jan. 8 Overcast
Overcast
 2° /-3° 1.5 mm 0.1 cm
Jan. 9 Overcast
Overcast
 4° /-4° 6.4 mm 1.3 cm
Jan. 10 Overcast
Overcast
 0° /-3° 0.2 mm 0 cm
Jan. 11 Overcast
Overcast
 2° /-5° 0.3 mm 0.2 cm
Jan. 12 Overcast
Overcast
 3° /-1° 4.7 mm 1.7 cm
Jan. 13 Overcast
Overcast
 2° /-4° 1 mm 0 cm
Jan. 14 Overcast
Overcast
 -2° /-7° 1.2 mm 0 cm
Jan. 15 Overcast
Overcast
 -3° /-8° 0.3 mm 0 cm
Jan. 16 Overcast
Overcast
 0° /-7° 2.5 mm 0.4 cm
Jan. 17 Overcast
Overcast
 0° /-5° 0.4 mm 0 cm
Jan. 18 Overcast
Overcast
 0° /-5° 1.1 mm 0.2 cm
Jan. 19 Light freezing rain
Light freezing rain
 -3° /-10° 2.3 mm 0.5 cm
Jan. 20 Partly cloudy
Partly cloudy
 -5° /-11° 0 mm 0 cm
Jan. 21 Sunny
Sunny
 -3° /-9° 0 mm 0 cm
Jan. 22 Overcast
Overcast
 -1° /-8° 1.1 mm 0.1 cm
Jan. 23 Overcast
Overcast
 -3° /-9° 3.4 mm 0.6 cm
Jan. 24 Patchy moderate snow
Patchy moderate snow
 -2° /-8° 2.4 mm 0.5 cm
Jan. 25 Patchy moderate snow
Patchy moderate snow
 -1° /-6° 4 mm 0.8 cm
Jan. 26 Partly cloudy
Partly cloudy
 -3° /-8° 3.1 mm 1.1 cm
Jan. 27 Sunny
Sunny
 -8° /-14° 0 mm 0 cm
Jan. 28 Sunny
Sunny
 -9° /-16° 0 mm 0 cm
Jan. 29 Sunny
Sunny
 -7° /-16° 0 mm 0 cm
Jan. 30 Moderate or heavy snow showers
Moderate or heavy snow showers
 -8° /-12° 5.2 mm 3.7 cm
Jan. 31 Heavy snow
Heavy snow
 -5° /-12° 5.2 mm 3.7 cm
Next
Important Notice
Our weather forecast for Chicago in January 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 Chicago forecast closer to your planned date for the most up-to-date weather information.
Change Month
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Chicago in January - FAQ

What are the expected maximum and minimum temperatures in Chicago during January?

Brace for cold days with temperatures not exceeding 0° and nights that are likely to be freezing. Winter clothing is essential for comfort and safety.

How much rainfall should be expected in Chicago during January?

Moderate rainfall is anticipated in Chicago during January, with a total of 59.8 mm spread over approximately 4 days. Considering plans for rainy days is advisable.

Will it snow in Chicago in January 2026?

Chicago experiences an average snowfall of 17.204 cm during January, occurring over 17 days.

What are the typical wind conditions in Chicago during January?

The average wind speed in Chicago during January is 23 km/h, suggesting breezy to windy conditions, depending on your activities.

Chicago snow forecast January 2026

Track daily snowfall levels and discover Chicago’s snowy potential this January ❄️
On average, Chicago sees 17 snowy days during January, with approximately 17.2 cm of total snowfall.

January rainfall patterns in Chicago

Explore the daily rainfall trends and prepare for Chicagos January weather 💧
Typically, Chicago has 4 rainy days in January with a total of 59.8 mm of rainfall.

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

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