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Will County (Joliet)
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United States weather

Weather in Will County, Illinois for December 2025

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

    Snow Forecast ❄️

  • With an average of 2 snowy days, Will County usually enjoys a light touch of snow in December.
    According to Will County snow forecast for December 2025, 3 snowy days are expected until the end of the month. The closest date with snow is Thursday, December 18.

    • Temperatures

  • Until now, December 2025 in Will County is cooler than usual, with temperatures averaging -1.1 °F, this is -2.7 °F below the typical seasonal average.

  • The forecast for the next days in Will County predicts temperatures to be around 2 °F, close to the historical average.

  • In general, the average temperature in Will County at the beginning of December is 1.6 °F. As the month progressed, temperatures tended to noticeably warm up, reaching an average of 4.6 °F by the end of December.

    • Rain 🌧️

  • The climate of Will County in December is notably wet, with an average of 11 rainy days, and a total of 71.2 mm of precipitation.

    • More

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

Average dry days
18
Dry days
Average rainy days
11
Rainy days
Average snowy days
2
Snow days
Average temperatures
4°/-1°
Temperatures
Average wind speed
21 km/h
Avg max wind
Average humidity
77 %
Avg humidity

Will County Weather December

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

Temperatures trend during December in Will County

See the weather trend as well as the moving average line

December weather in Will County day by day

Click on a date for more information
November January
Date Weather Temperatures Rain Snow More
Dec. 1 Heavy rain
Heavy rain
 2° /-6° 10.9 mm 3.8 cm
Dec. 2 Patchy rain possible
Patchy rain possible
 0° /-4° 1.3 mm 0.3 cm
Dec. 3 Light rain
Light rain
 2° /-4° 6.1 mm 1.9 cm
Dec. 4 Overcast
Overcast
 0° /-6° 0 mm 0 cm
Dec. 5 Moderate snow
Moderate snow
 0° /-8° 1.6 mm 0.6 cm
Dec. 6 Overcast
Overcast
 1° /-5° 0 mm 0 cm
Dec. 7 Partly cloudy
Partly cloudy
 6° /-3° 6.2 mm 3.8 cm
Dec. 8 Patchy rain possible
Patchy rain possible
 4° /-1° 0 mm 0 cm
Dec. 9 Overcast
Overcast
 6° /-1° 0.1 mm 0 cm
Dec. 10 Overcast
Overcast
 2° /-2° 2.8 mm 0 cm
Dec. 11 Sunny
Sunny
 0° /-5° 0.9 mm 0.6 cm
Dec. 12 Overcast
Overcast
 -2° /-6° 3.2 mm 2.3 cm
Dec. 13 Partly cloudy
Partly cloudy
 0° /-9° 4.3 mm 3.1 cm
Dec. 14 Sunny
Sunny
 0° /-7° 5.5 mm 0 cm
Dec. 15 Sunny
Sunny
 -3° /-18° 0 mm 0 cm
Dec. 16 Partly cloudy
Partly cloudy
 4° /-11° 0 mm 0 cm
Dec. 17 Overcast
Overcast
 0° /-1° 0 mm 0 cm
Dec. 18 Moderate or heavy snow showers
Moderate or heavy snow showers
 3° /-5° 9.5 mm 0.4 cm
Dec. 19 Light freezing rain
Light freezing rain
 -6° /-9° 0.2 mm 0 cm
Dec. 20 Light freezing rain
Light freezing rain
 3° /-4° 0.2 mm 0.1 cm
Dec. 21 Partly cloudy
Partly cloudy
 0° /-5° 0 mm 0 cm
Dec. 22 Moderate or heavy snow showers
Moderate or heavy snow showers
 1° /-2° 1.5 mm 0.4 cm
Dec. 23 Patchy rain possible
Patchy rain possible
 4° /1° 0.2 mm 0 cm
Dec. 24 Overcast
Overcast
 6° /1° 0.1 mm 0 cm
Dec. 25 Overcast
Overcast
 4° /0° 0 mm 0 cm
Dec. 26 Partly cloudy
Partly cloudy
 4° /-1° 0 mm 0 cm
Dec. 27 Sunny
Sunny
 4° /-3° 0 mm 0 cm
Dec. 28 Partly cloudy
Partly cloudy
 7° /-2° 0 mm 0 cm
Dec. 29 Light drizzle
Light drizzle
 6° /3° 1.2 mm 0 cm
Dec. 30 Overcast
Overcast
 6° /2° 0 mm 0 cm
Dec. 31 Moderate snow
Moderate snow
 1° /-1° 12.7 mm 3.5 cm
Next
Important Notice
Our weather forecast for Will County in December 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 December - FAQ

What are the expected maximum and minimum temperatures in Will County during December?
Brace for cold days with temperatures not exceeding 4° 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 December?
Moderate rainfall is anticipated in Will County during December, with a total of 71.2 mm spread over approximately 11 days. Considering plans for rainy days is advisable.
Will it snow in Will County in December 2025?
Will County experiences an average snowfall of 4.525 cm during December, occurring over 2 days.
What are the typical wind conditions in Will County during December?
The average wind speed in Will County during December is 21 km/h, suggesting breezy to windy conditions, depending on your activities.

Will County snow forecast December 2025

Track daily snowfall levels and discover Will County’s snowy potential this December ❄️
On average, Will County sees 2 snowy days during December, with approximately 4.5 cm of total snowfall.

December rainfall patterns in Will County

Explore the daily rainfall trends and prepare for Will Countys December weather 💧
Typically, Will County has 11 rainy days in December with a total of 71.2 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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