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O'Fallon, IL

81°F
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O'Fallon

Illinois

81°
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O'Fallon, IL Weather
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6 PM

80°
RealFeel® 81°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Hazy sunshine

RealFeel Shade™78°

WindNNW 6 mph

Air QualityPoor

Max UV Index2 (Low)

Wind Gusts8 mph

Humidity47%

Indoor Humidity47% (Slightly Humid)

Dew Point58° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover31%

Visibility5 mi

Cloud Ceiling30000 ft

7 PM

78°
RealFeel® 78°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Hazy sunshine

RealFeel Shade™76°

WindNNW 6 mph

Air QualityPoor

Max UV Index1 (Low)

Wind Gusts7 mph

Humidity50%

Indoor Humidity50% (Slightly Humid)

Dew Point58° F

AccuLumen Brightness Index™7 (Bright)

Cloud Cover31%

Visibility5 mi

Cloud Ceiling30000 ft

8 PM

76°
RealFeel® 74°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Sunny

RealFeel Shade™74°

WindN 6 mph

Air QualityPoor

Max UV Index0 (Low)

Wind Gusts7 mph

Humidity55%

Indoor Humidity55% (Slightly Humid)

Dew Point59° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover1%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

72°
RealFeel® 70°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Clear

WindESE 5 mph

Air QualityPoor

Wind Gusts7 mph

Humidity65%

Indoor Humidity65% (Slightly Humid)

Dew Point59° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

68°
RealFeel® 67°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Clear

WindSE 5 mph

Air QualityPoor

Wind Gusts8 mph

Humidity72%

Indoor Humidity72% (Slightly Humid)

Dew Point59° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

66°
RealFeel® 64°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Clear

WindSSE 5 mph

Air QualityPoor

Wind Gusts7 mph

Humidity79%

Indoor Humidity72% (Slightly Humid)

Dew Point59° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 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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