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Williamson County (Energy)
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United States weather

Weather in Williamson County, Illinois for January 2027

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

    Snow Forecast ❄️

  • Williamson County typically experiences moderate snowfall in January, with an average of 6 snowy days.

    • Temperatures

  • In general, the average temperature in Williamson County at the beginning of January is 4.4 °C. As the month progressed, temperatures tended to slightly decrease, reaching an average of 4 °C by the end of January.

    • More

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

Average dry days
18
Dry days
Average rainy days
7
Rainy days
Average snowy days
6
Snow days
Average temperatures
3°/-4°
Temperatures
Average wind speed
21 km/h
Avg max wind
Average humidity
73 %
Avg humidity

Williamson County Weather January

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

Temperatures trend during January in Williamson County

See the weather trend as well as the moving average line

January weather in Williamson 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
 3° /-1° 0 mm 0 cm
Jan. 2 Overcast
Overcast
 4° /-1° 0 mm 0 cm
Jan. 3 Overcast
Overcast
 5° /-1° 0 mm 0 cm
Jan. 4 Sunny
Sunny
 4° /-2° 0 mm 0 cm
Jan. 5 Patchy rain possible
Patchy rain possible
 6° /-1° 22.3 mm 4.5 cm
Jan. 6 Patchy rain possible
Patchy rain possible
 7° /1° 3.8 mm 1.7 cm
Jan. 7 Patchy rain possible
Patchy rain possible
 2° /-5° 0 mm 0 cm
Jan. 8 Overcast
Overcast
 5° /-4° 6.2 mm 0 cm
Jan. 9 Light rain shower
Light rain shower
 9° /0° 9.2 mm 0 cm
Jan. 10 Partly cloudy
Partly cloudy
 5° /-1° 8.2 mm 5.9 cm
Jan. 11 Partly cloudy
Partly cloudy
 4° /-2° 0 mm 0 cm
Jan. 12 Light snow showers
Light snow showers
 7° /-3° 19.9 mm 0 cm
Jan. 13 Light snow
Light snow
 4° /-5° 0 mm 0 cm
Jan. 14 Light snow
Light snow
 0° /-7° 0.1 mm 0.1 cm
Jan. 15 Sunny
Sunny
 -2° /-9° 0 mm 0 cm
Jan. 16 Overcast
Overcast
 0° /-6° 0 mm 0 cm
Jan. 17 Sunny
Sunny
 2° /-7° 1.5 mm 0 cm
Jan. 18 Heavy snow
Heavy snow
 2° /-5° 10.2 mm 0.4 cm
Jan. 19 Light snow
Light snow
 -3° /-11° 0 mm 0 cm
Jan. 20 Cloudy
Cloudy
 -2° /-13° 0 mm 0 cm
Jan. 21 Overcast
Overcast
 -1° /-8° 0 mm 0 cm
Jan. 22 Overcast
Overcast
 1° /-6° 0.6 mm 0 cm
Jan. 23 Overcast
Overcast
 2° /-5° 2.9 mm 0 cm
Jan. 24 Light rain shower
Light rain shower
 1° /-6° 22.8 mm 13.5 cm
Jan. 25 Light rain
Light rain
 3° /-2° 21 mm 13.5 cm
Jan. 26 Mist
Mist
 3° /-5° 0 mm 0 cm
Jan. 27 Sunny
Sunny
 4° /-5° 2.3 mm 0 cm
Jan. 28 Patchy rain possible
Patchy rain possible
 4° /-7° 0.1 mm 0 cm
Jan. 29 Mist
Mist
 6° /-2° 0 mm 0 cm
Jan. 30 Light drizzle
Light drizzle
 4° /-1° 18.1 mm 0 cm
Jan. 31 Overcast
Overcast
 4° /-3° 0.4 mm 0 cm
Next
Important Notice
Our weather forecast for Williamson 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 Williamson County forecast closer to your planned date for the most up-to-date weather information.
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Williamson County in January - FAQ

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

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 Williamson County during January?

Significant rainfall exceeding 149.9 mm is expected in Williamson County during January, occurring over more than 7 days. Preparing for wet conditions is recommended in your planning.

Will it snow in Williamson County in January 2027?

Williamson County experiences an average snowfall of 39.6183 cm during January, occurring over 6 days.

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

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

Williamson County snow forecast January 2027

Track daily snowfall levels and discover Williamson County’s snowy potential this January ❄️
On average, Williamson County sees 6 snowy days during January, with approximately 39.6 cm of total snowfall.

January rainfall patterns in Williamson County

Explore the daily rainfall trends and prepare for Williamson Countys January weather 💧
Typically, Williamson County has 7 rainy days in January with a total of 149.9 mm of rainfall.
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Location coordinates Where is Williamson County?

Get accurate weather forecasts for Williamson County, located at latitude 37.774 and longitude -89.026. Stay updated with localized weather information tailored for Williamson County.

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