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Large winter storm threatens central, eastern US later this week. Get the forecast. Chevron right

Williamson, IL

12°F
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Williamson

Illinois

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Williamson, IL Weather
Today WinterCast Local {stormName} Tracker Hourly Daily Radar MinuteCast® Monthly Air Quality Health & Activities

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Winter Center
Today Hourly Daily Radar MinuteCast® Monthly Air Quality Health & Activities
Monday, January 19

Current Weather

9:49 AM

12°F
Sunny
RealFeel® -1°
Bitterly Cold
RealFeel Guide
Bitterly Cold
-10° to 9°
Caution advised. Frostbite to exposed skin within 15 minutes. Hypothermia likely without protective clothing.
LEARN MORE
RealFeel Shade™ -4°
Bitterly Cold
RealFeel Guide
Bitterly Cold
-10° to 9°
Caution advised. Frostbite to exposed skin within 15 minutes. Hypothermia likely without protective clothing.
LEARN MORE
RealFeel®
-1°
RealFeel Shade™
-4°
Max UV Index
1.4 (Low)
Wind
NW 12 mph
Wind Gusts
20 mph
Humidity
49%
Indoor Humidity
14% (Extremely Dry)
Dew Point
-3° F
Pressure
↑ 30.37 in
Cloud Cover
0%
Visibility
24 mi
Cloud Ceiling
40000 ft

Day

1/19
20°Hi
RealFeel® 10°
Very Cold
RealFeel Guide
Very Cold
10° to 24°
Caution advised. Older adults, infants, and those with sensitive medical conditions, should be well dressed to protect from hypothermia and frostbite. Coat, hat, gloves and a scarf are appropriate.
LEARN MORE
RealFeel Shade™ 10°
Very Cold
RealFeel Guide
Very Cold
10° to 24°
Caution advised. Older adults, infants, and those with sensitive medical conditions, should be well dressed to protect from hypothermia and frostbite. Coat, hat, gloves and a scarf are appropriate.
LEARN MORE
Mostly sunny, breezy and very cold
alerts

Cold Weather Advisory

3:00 AM Monday - 10:00 AM Monday

Max UV Index3.0 (Moderate)

AccuLumen Brightness Index™9 (Very Bright)

WindWNW 15 mph

Wind Gusts31 mph

Probability of Precipitation0%

Probability of Thunderstorms0%

Precipitation0.00 in

Cloud Cover8%

Morning

Afternoon

Night

1/19
12°Lo
RealFeel® 8°
Bitterly Cold
RealFeel Guide
Bitterly Cold
-10° to 9°
Caution advised. Frostbite to exposed skin within 15 minutes. Hypothermia likely without protective clothing.
LEARN MORE
Clear to partly cloudy and cold

WindWSW 6 mph

Wind Gusts7 mph

Probability of Precipitation2%

Probability of Thunderstorms0%

Precipitation0.00 in

Cloud Cover27%

Evening

Overnight

Sun & Moon

9 hrs 50 mins
Rise 7:15 AM
Set 5:05 PM
Waxing Crescent
Rise 8:01 AM
Set 6:03 PM

Temperature History

1/19
High
Low
Forecast
20°
12°
Average
38°
21°
Last Year
20°
1°

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World North America United States Illinois Williamson

Weather Near Williamson:

  • O'Fallon, MO
  • St. Charles, MO
  • St. Louis, MO
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