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Weather in Joliet, Illinois for December 2026

Your guide to Joliet weather in December - trends and predictions

    Snow Forecast ❄️

  • Joliet typically experiences moderate snowfall in December, with an average of 10 snowy days.

    • Temperatures

  • In general, the average temperature in Joliet at the beginning of December is 1.6 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 4.9 °C by the end of December.

    • More

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

Average dry days
13
Dry days
Average rainy days
8
Rainy days
Average snowy days
10
Snow days
Average temperatures
3°/-2°
Temperatures
Average wind speed
21 km/h
Avg max wind
Average humidity
79 %
Avg humidity

Joliet Weather December

Move between months or click on a day
November
January
Mon.Tue.Wed.Thu.Fri.Sat.Sun.
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
Partly cloudy
2°
16
Light rain
5°
17
Fog
4°
18
Light snow
3°
19
Overcast
-1°
20
Overcast
3°
21
Partly cloudy
3°
22
Overcast
4°
23
Fog
5°
24
Freezing fog
5°
25
Light rain
6°
26
Patchy rain possible
5°
27
Overcast
6°
28
Light drizzle
10°
29
Light drizzle
3°
30
Overcast
3°
31
Moderate snow
1°

Temperatures trend during December in Joliet

See the weather trend as well as the moving average line

December weather in Joliet 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 Partly cloudy
Partly cloudy
 2° /-5° 4.8 mm 0 cm
Dec. 16 Light rain
Light rain
 5° /-1° 4.3 mm 0 cm
Dec. 17 Fog
Fog
 4° /1° 0.1 mm 0 cm
Dec. 18 Light snow
Light snow
 3° /-2° 0 mm 0 cm
Dec. 19 Overcast
Overcast
 -1° /-6° 0 mm 0 cm
Dec. 20 Overcast
Overcast
 3° /-3° 0 mm 0 cm
Dec. 21 Partly cloudy
Partly cloudy
 3° /-4° 0.1 mm 0 cm
Dec. 22 Overcast
Overcast
 4° /-1° 4.1 mm 0 cm
Dec. 23 Fog
Fog
 5° /1° 0.5 mm 0 cm
Dec. 24 Freezing fog
Freezing fog
 5° /2° 0 mm 0 cm
Dec. 25 Light rain
Light rain
 6° /3° 2.2 mm 0 cm
Dec. 26 Patchy rain possible
Patchy rain possible
 5° /1° 1.1 mm 0.3 cm
Dec. 27 Overcast
Overcast
 6° /1° 1.4 mm 0 cm
Dec. 28 Light drizzle
Light drizzle
 10° /4° 10.7 mm 0 cm
Dec. 29 Light drizzle
Light drizzle
 3° /-1° 0.8 mm 0 cm
Dec. 30 Overcast
Overcast
 3° /-2° 0 mm 0 cm
Dec. 31 Moderate snow
Moderate snow
 1° /-2° 8.5 mm 2.4 cm
Next
Important Notice
Our weather forecast for Joliet 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 Joliet forecast closer to your planned date for the most up-to-date weather information.
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Joliet in December - FAQ

What are the expected maximum and minimum temperatures in Joliet during December?

Brace for cold days with temperatures not exceeding 3° and nights that are likely to be freezing. Winter clothing is essential for comfort and safety.

How much rainfall should be expected in Joliet during December?

Moderate rainfall is anticipated in Joliet during December, with a total of 81.4 mm spread over approximately 8 days. Considering plans for rainy days is advisable.

Will it snow in Joliet in December 2026?

Joliet experiences an average snowfall of 19.18 cm during December, occurring over 10 days.

What are the typical wind conditions in Joliet during December?

The average wind speed in Joliet during December is 21 km/h, suggesting breezy to windy conditions, depending on your activities.

Joliet snow forecast December 2026

Track daily snowfall levels and discover Joliet’s snowy potential this December ❄️
On average, Joliet sees 10 snowy days during December, with approximately 19.2 cm of total snowfall.

December rainfall patterns in Joliet

Explore the daily rainfall trends and prepare for Joliets December weather 💧
Typically, Joliet has 8 rainy days in December with a total of 81.4 mm of rainfall.

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Location coordinates Where is Joliet?

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

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