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Springlike warmth in East to be erased by upcoming cold wave. Get the forecast. Chevron right

O'Fallon, IL

65°F
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O'Fallon

Illinois

65°
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O'Fallon, IL Weather
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10 PM

65°
RealFeel® 59°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 67%
Chevron down
Thunderstorms

WindSSW 16 mph

Air QualityFair

Wind Gusts22 mph

Humidity87%

Indoor Humidity77% (Slightly Humid)

Dew Point61° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover95%

Visibility6 mi

Cloud Ceiling4000 ft

11 PM

64°
RealFeel® 57°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 76%
Chevron down
Thunderstorms

WindSSW 15 mph

Air QualityFair

Wind Gusts20 mph

Humidity87%

Indoor Humidity76% (Slightly Humid)

Dew Point60° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover95%

Rain0.04 in

Visibility6 mi

Cloud Ceiling4000 ft

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World North America United States Illinois O'Fallon

Weather Near O'Fallon:

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