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United States weather

Weather in McLean County, Illinois for December 2026

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

    Snow Forecast ❄️

  • With an average of 5 snowy days, McLean County usually enjoys a light touch of snow in December.

    • More

  • Is December a good time to visit McLean County? check out the best time to travel to McLean County page.

  • ✨ Is December a good time to visit McLean County? – Ask the AI Weatherman

Average dry days
24
Dry days
Average rainy days
2
Rainy days
Average snowy days
5
Snow days
Average temperatures
1°/-5°
Temperatures
Average wind speed
24 km/h
Avg max wind
Average humidity
85 %
Avg humidity

McLean County Weather December

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

Temperatures trend during December in McLean County

See the weather trend as well as the moving average line

December weather in McLean County day by day

Click on a date for more information
November January
Date Weather Temperatures Rain Snow More
Dec. 1 Light snow
Light snow
 -2° /-5° 5 mm 1.6 cm
Dec. 2 Light snow
Light snow
 -1° /-6° 6.4 mm 4.6 cm
Dec. 3 Overcast
Overcast
 0° /-6° 0 mm 0 cm
Dec. 4 Partly cloudy
Partly cloudy
 -4° /-12° 0 mm 0 cm
Dec. 5 Cloudy
Cloudy
 0° /-12° 0 mm 0 cm
Dec. 6 Overcast
Overcast
 0° /-2° 0 mm 0 cm
Dec. 7 Fog
Fog
 1° /-5° 0 mm 0 cm
Dec. 8 Overcast
Overcast
 -2° /-6° 0 mm 0 cm
Dec. 9 Overcast
Overcast
 2° /-5° 0 mm 0 cm
Dec. 10 Overcast
Overcast
 3° /-3° 0 mm 0 cm
Dec. 11 Light snow
Light snow
 -1° /-4° 4.6 mm 3.3 cm
Dec. 12 Moderate snow
Moderate snow
 0° /-2° 9.9 mm 7.2 cm
Dec. 13 Moderate or heavy snow showers
Moderate or heavy snow showers
 -3° /-12° 26.6 mm 19.2 cm
Dec. 14 Overcast
Overcast
 -11° /-15° 0 mm 0 cm
Dec. 15 Cloudy
Cloudy
 -2° /-17° 0 mm 0 cm
Dec. 16 Overcast
Overcast
 1° /-8° 0 mm 0 cm
Dec. 17 Freezing fog
Freezing fog
 0° /0° 0 mm 0 cm
Dec. 18 Moderate rain at times
Moderate rain at times
 5° /0° 7.4 mm 0 cm
Dec. 19 Overcast
Overcast
 -3° /-8° 0 mm 0 cm
Dec. 20 Overcast
Overcast
 3° /-4° 0 mm 0 cm
Dec. 21 Cloudy
Cloudy
 2° /-3° 0 mm 0 cm
Dec. 22 Overcast
Overcast
 3° /-1° 0 mm 0 cm
Dec. 23 Fog
Fog
 2° /0° 0 mm 0 cm
Dec. 24 Freezing fog
Freezing fog
 2° /0° 0 mm 0 cm
Dec. 25 Fog
Fog
 4° /2° 0 mm 0 cm
Dec. 26 Fog
Fog
 6° /3° 0 mm 0 cm
Dec. 27 Mist
Mist
 7° /4° 0 mm 0 cm
Dec. 28 Moderate rain
Moderate rain
 16° /7° 20.6 mm 0 cm
Dec. 29 Overcast
Overcast
 -4° /-9° 0 mm 0 cm
Dec. 30 Overcast
Overcast
 -2° /-10° 0 mm 0 cm
Dec. 31 Overcast
Overcast
 0° /-2° 0 mm 0 cm
Next
Important Notice
Our weather forecast for McLean 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 McLean County forecast closer to your planned date for the most up-to-date weather information.
Change Month
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McLean County in December - FAQ

What are the expected maximum and minimum temperatures in McLean County during December?
Brace for cold days with temperatures not exceeding 1° and nights that are likely to be freezing. Winter clothing is essential for comfort and safety.

How much rainfall should be expected in McLean County during December?
Moderate rainfall is anticipated in McLean County during December, with a total of 80.5 mm spread over approximately 2 days. Considering plans for rainy days is advisable.

Will it snow in McLean County in December 2026?
McLean County experiences an average snowfall of 35.9 cm during December, occurring over 5 days.

What are the typical wind conditions in McLean County during December?
The average wind speed in McLean County during December is 24 km/h, suggesting breezy to windy conditions, depending on your activities.

McLean County snow forecast December 2026

Track daily snowfall levels and discover McLean County’s snowy potential this December ❄️
On average, McLean County sees 5 snowy days during December, with approximately 35.9 cm of total snowfall.

December rainfall patterns in McLean County

Explore the daily rainfall trends and prepare for McLean Countys December weather 💧
Typically, McLean County has 2 rainy days in December with a total of 80.5 mm of rainfall.
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Bloomington
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