easeweather.com
Williamson County (Energy)
Akron (OH)Albuquerque (NM)Alexandria (VA)Anaheim (CA)Anchorage (AK)Arlington (VA)Asheville (NC)Atlanta (GA)Atlantic City (NJ)Austin (TX)Baltimore (MD)Baton Rouge (LA)Birmingham (AL)Boston (MA)Bowling Green (KY)Brooklyn (NY)Buffalo (NY)Cape Coral (FL)Charlotte (NC)Chattanooga (TN)Chicago (IL)Cincinnati (OH)Cleveland (OH)Colorado Springs (CO)Columbus (OH)Corpus Christi (TX)Dallas (TX)Dayton (OH)Daytona Beach (FL)Denver (CO)Des Moines (IA)Detroit (MI)El Paso (TX)Energy (IL)Fairbanks (AK)Fort Lauderdale (FL)Fort Wayne (IN)Fort Worth (TX)Gatlinburg (TN)Grand Rapids (MI)Harrisburg (PA)Honolulu (HI)Houston (TX)Huntsville (AL)Indianapolis (IN)Jackson (MS)Jacksonville (FL)Juneau (AK)Kansas City (MO)Ketchikan (AK)Key West (FL)Knoxville (TN)Las Vegas (NV)Lexington (KY)Lincoln (NE)Little Rock (AR)Los Angeles (CA)Louisville (KY)Madison (WI)Manhattan (NY)Memphis (TN)Miami (FL)Milwaukee (WI)Minneapolis (MN)Mobile (AL)Montgomery (AL)Nashville (TN)New Orleans (LA)New York City (NY)Newark (NJ)Oklahoma City (OK)Omaha (NE)Orlando (FL)Philadelphia (PA)Phoenix (AZ)Pittsburgh (PA)Portland (OR)Richmond (VA)Sacramento (CA)Salt Lake City (UT)San Antonio (TX)San Diego (CA)San Francisco (CA)San Jose (CA)Savannah (GA)Seattle (WA)Sitka (AK)Skagway (AK)Springfield (MO)St. Louis (MO)St. Petersburg (FL)Tallahassee (FL)Tampa (FL)Toledo (OH)Traverse City (MI)Tulsa (OK)Tyler (TX)Vancouver (WA)Virginia Beach (VA)WashingtonWinston-Salem (NC) More Locations
United States weather

Weather in Williamson County, Illinois for January 2027

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

    Snow Forecast ❄️

  • With an average of 2 snowy days, Williamson County usually enjoys a light touch of snow in January.

    • Temperatures

  • In general, the average temperature in Williamson County at the beginning of January is 4.2 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 3.6 °C by the end of January.

    • Rain 🌧️

  • Williamson County experiences moderate rainfall in January, with an average of 6 rainy days and a total precipitation of 146.5 mm.

    • More

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

  • ✨ Is January a good time to visit Williamson County? – Ask the AI Weatherman

Average dry days
23
Dry days
Average rainy days
6
Rainy days
Average snowy days
2
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
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Partly cloudy
3°
2
Overcast
4°
3
Overcast
5°
4
Sunny
4°
5
Moderate rain
6°
6
Light rain
6°
7
Patchy rain possible
2°
8
Light rain
5°
9
Light rain
8°
10
Moderate snow
5°
11
Partly cloudy
4°
12
Moderate rain
7°
13
Cloudy
4°
14
Light snow
-1°
15
Sunny
-3°
16
Overcast
-1°
17
Patchy rain possible
1°
18
Heavy snow
1°
19
Light snow
-3°
20
Cloudy
-3°
21
Overcast
-2°
22
Overcast
1°
23
Light rain
1°
24
Moderate rain
0°
25
Moderate rain
3°
26
Mist
2°
27
Patchy rain possible
4°
28
Patchy rain possible
3°
29
Mist
6°
30
Moderate rain
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° /0° 0 mm 0 cm
Jan. 4 Sunny
Sunny
 4° /-2° 0 mm 0 cm
Jan. 5 Moderate rain
Moderate rain
 6° /-1° 22.3 mm 4.5 cm
Jan. 6 Light rain
Light rain
 6° /2° 3.8 mm 1.7 cm
Jan. 7 Patchy rain possible
Patchy rain possible
 2° /-4° 0 mm 0 cm
Jan. 8 Light rain
Light rain
 5° /-4° 6.2 mm 0 cm
Jan. 9 Light rain
Light rain
 8° /1° 9.2 mm 0 cm
Jan. 10 Moderate snow
Moderate snow
 5° /0° 8.2 mm 5.9 cm
Jan. 11 Partly cloudy
Partly cloudy
 4° /-1° 0 mm 0 cm
Jan. 12 Moderate rain
Moderate rain
 7° /-3° 19.9 mm 0 cm
Jan. 13 Cloudy
Cloudy
 4° /-5° 0 mm 0 cm
Jan. 14 Light snow
Light snow
 -1° /-7° 0.1 mm 0.1 cm
Jan. 15 Sunny
Sunny
 -3° /-9° 0 mm 0 cm
Jan. 16 Overcast
Overcast
 -1° /-5° 0 mm 0 cm
Jan. 17 Patchy rain possible
Patchy rain possible
 1° /-7° 1.5 mm 0 cm
Jan. 18 Heavy snow
Heavy snow
 1° /-7° 6.8 mm 0.3 cm
Jan. 19 Light snow
Light snow
 -3° /-10° 0 mm 0 cm
Jan. 20 Cloudy
Cloudy
 -3° /-12° 0 mm 0 cm
Jan. 21 Overcast
Overcast
 -2° /-8° 0 mm 0 cm
Jan. 22 Overcast
Overcast
 1° /-6° 0.6 mm 0 cm
Jan. 23 Light rain
Light rain
 1° /-4° 2.9 mm 0 cm
Jan. 24 Moderate rain
Moderate rain
 0° /-6° 22.8 mm 13.5 cm
Jan. 25 Moderate rain
Moderate rain
 3° /-2° 21 mm 13.5 cm
Jan. 26 Mist
Mist
 2° /-5° 0 mm 0 cm
Jan. 27 Patchy rain possible
Patchy rain possible
 4° /-4° 2.3 mm 0 cm
Jan. 28 Patchy rain possible
Patchy rain possible
 3° /-6° 0.1 mm 0 cm
Jan. 29 Mist
Mist
 6° /-2° 0 mm 0 cm
Jan. 30 Moderate rain
Moderate rain
 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.
Change Month
‹
›

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 146.5 mm is expected in Williamson County during January, occurring over more than 6 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 39.5 cm during January, occurring over 2 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 2 snowy days during January, with approximately 39.5 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 6 rainy days in January with a total of 146.5 mm of rainfall.
Top locations in Williamson County
Select a location for an accurate weather forecast
EnergyFranklin
More Locations
Quick links
More Williamson County weather pages
You are here
Found a mistake?
We appreciate your attention to details. Tell us here.