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O'Fallon, IL

85°F
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O'Fallon, IL Weather
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Winter Center
Today Hourly Daily Radar MinuteCast® Monthly Air Quality Health & Activities
Thursday, December 18

Day

12/18
34°Hi
RealFeel® 22°
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™ 22°
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
Cloudy and colder; a bit of morning snow followed by a mix of snow, ice and rain in the afternoon

Max UV Index1.0 (Low)

WindNNE 14 mph

Wind Gusts25 mph

Probability of Precipitation67%

Probability of Thunderstorms0%

Precipitation0.09 in

Rain0.06 in

Snow0.3

Ice0.01 in

Hours of Precipitation6

Hours of Rain1

Cloud Cover97%

Night

12/18
16°Lo
RealFeel® -6°
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
Sleet and freezing rain; colder

WindNNE 14 mph

Wind Gusts24 mph

Probability of Precipitation71%

Probability of Thunderstorms0%

Precipitation0.34 in

Ice0.34 in

Hours of Precipitation12

Cloud Cover99%

Sun & Moon

9 hrs 29 mins
Rise 8:12 AM
Set 5:41 PM
Waning Crescent
Rise 7:15 AM
Set 4:18 PM

Temperature History

12/18
High
Low
Forecast
34°
16°
Average
44°
26°
Last Year
48°
28°

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Weather Near O'Fallon:

  • O'Fallon, MO
  • St. Charles, MO
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