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Will County (Joliet)
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United States weather

Weather in Will County, Illinois for January 2026

Your guide to Will County weather in January - trends and predictions

    Official Weather Alert ⚠️

  • Flood Advisory - See hour by hour.

    • Snow Forecast ❄️

  • Will County typically experiences moderate snowfall in January, with an average of 10 snowy days.
    According to Will County snow forecast for January 2026, no snow is expected until the end of the month.

    • Temperatures

  • Until now, January 2026 in Will County has been nearly identical to the historical average, with a temperature of -1.6 °F (showing only a slight deviation of 0.1 °F).

  • In general, the average temperature in Will County at the beginning of January is 0.1 °F. As the month progressed, temperatures tended to slightly increase, reaching an average of 0.3 °F by the end of January.

    • More

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

Average dry days
15
Dry days
Average rainy days
6
Rainy days
Average snowy days
10
Snow days
Average temperatures
-2°/-7°
Temperatures
Average wind speed
22 km/h
Avg max wind
Average humidity
78 %
Avg humidity

Will County Weather January

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

Temperatures trend during January in Will County

See the weather trend as well as the moving average line

January weather in Will County day by day

Click on a date for more information
December February
Date Weather Temperatures Rain Snow More
Jan. 1 Partly cloudy
Partly cloudy
 -1° /-5° 0 mm 0 cm
Jan. 2 Overcast
Overcast
 1° /-4° 0 mm 0 cm
Jan. 3 Overcast
Overcast
 0° /-5° 0 mm 0 cm
Jan. 4 Sunny
Sunny
 -1° /-7° 0 mm 0 cm
Jan. 5 Light snow
Light snow
 0° /-4° 0 mm 0 cm
Jan. 6 Heavy snow
Heavy snow
 1° /-2° 1.3 mm 1.1 cm
Jan. 7 Overcast
Overcast
 1° /-4° 0 mm 0 cm
Jan. 8 Overcast
Overcast
 1° /-4° 1.7 mm 0.3 cm
Jan. 9 Heavy snow
Heavy snow
 5° /-3° 14.9 mm 2.4 cm
Jan. 10 Moderate snow
Moderate snow
 1° /-4° 3.6 mm 2.1 cm
Jan. 11 Cloudy
Cloudy
 0° /-6° 0.3 mm 0.2 cm
Jan. 12 Overcast
Overcast
 2° /-3° 9.6 mm 7.1 cm
Jan. 13 Blizzard
Blizzard
 1° /-8° 1.3 mm 0 cm
Jan. 14 Overcast
Overcast
 -6° /-12° 0.1 mm 0 cm
Jan. 15 Overcast
Overcast
 -8° /-15° 0 mm 0 cm
Jan. 16 Overcast
Overcast
 -4° /-12° 1.9 mm 1.4 cm
Jan. 17 Overcast
Overcast
 -3° /-10° 0 mm 0 cm
Jan. 18 Moderate snow
Moderate snow
 -3° /-11° 0.6 mm 0.5 cm
Jan. 19 Overcast
Overcast
 -8° /-16° 0.5 mm 0.4 cm
Jan. 20 Partly cloudy
Partly cloudy
 -8° /-18° 0 mm 0 cm
Jan. 21 Freezing fog
Freezing fog
 -7° /-15° 0 mm 0 cm
Jan. 22 Heavy snow
Heavy snow
 -3° /-11° 1.3 mm 0.3 cm
Jan. 23 Light freezing rain
Light freezing rain
 -4° /-10° 4 mm 0 cm
Jan. 24 Light rain
Light rain
 -5° /-12° 1.9 mm 0 cm
Jan. 25 Overcast
Overcast
 -1° /-7° 2.8 mm 0 cm
Jan. 26 Partly cloudy
Partly cloudy
 -2° /-8° 0.8 mm 0 cm
Jan. 27 Fog
Fog
 -1° /-7° 0.2 mm 0 cm
Jan. 28 Patchy rain possible
Patchy rain possible
 1° /-7° 0.1 mm 0 cm
Jan. 29 Partly cloudy
Partly cloudy
 1° /-6° 0 mm 0 cm
Jan. 30 Moderate snow
Moderate snow
 5° /-1° 0.3 mm 0.1 cm
Jan. 31 Sunny
Sunny
 -1° /-12° 0 mm 0 cm
Next
Important Notice
Our weather forecast for Will County 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 Will County forecast closer to your planned date for the most up-to-date weather information.
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Will County in January - FAQ

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

Brace for cold days with temperatures not exceeding -2° and nights that are likely to be freezing. Winter clothing is essential for comfort and safety.

How much rainfall should be expected in Will County during January?

Moderate rainfall is anticipated in Will County during January, with a total of 50.7 mm spread over approximately 6 days. Considering plans for rainy days is advisable.

Will it snow in Will County in January 2026?

Will County experiences an average snowfall of 20.71 cm during January, occurring over 10 days.

What are the typical wind conditions in Will County during January?

The average wind speed in Will County during January is 22 km/h, suggesting breezy to windy conditions, depending on your activities.

Will County snow forecast January 2026

Track daily snowfall levels and discover Will County’s snowy potential this January ❄️
On average, Will County sees 10 snowy days during January, with approximately 20.7 cm of total snowfall.

January rainfall patterns in Will County

Explore the daily rainfall trends and prepare for Will Countys January weather 💧
Typically, Will County has 6 rainy days in January with a total of 50.7 mm of rainfall.
Top locations in Will County
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BolingbrookJoliet
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Location coordinates Where is Will County?

Get accurate weather forecasts for Will County, located at latitude 41.525 and longitude -88.083. Stay updated with localized weather information tailored for Will County.

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