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O'Fallon, IL

71°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
Tuesday, August 26

Day

8/26
90°Hi
RealFeel® 94°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
RealFeel Shade™ 94°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
A thick cloud cover and humid; a thunderstorm in spots in the afternoon

Max UV Index2 (Low)

WindSSW 6 mph

Wind Gusts9 mph

Probability of Precipitation40%

Probability of Thunderstorms22%

Precipitation0.04 in

Rain0.04 in

Hours of Precipitation1

Hours of Rain1

Cloud Cover96%

Night

8/26
67°Lo
RealFeel® 69°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
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Cloudy most of the time with a couple of showers and a thunderstorm; humid

WindSSW 5 mph

Wind Gusts9 mph

Probability of Precipitation63%

Probability of Thunderstorms37%

Precipitation0.33 in

Rain0.33 in

Hours of Precipitation3

Hours of Rain3

Cloud Cover82%

Sun & Moon

13 hrs 16 mins
Rise 6:23 AM
Set 7:39 PM
Waxing Crescent
Rise 9:45 AM
Set 9:09 PM

Temperature History

8/26
High
Low
Forecast
90°
67°
Average
89°
64°
Last Year
97°
71°
Record
99°
1983
50°
1970

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Weather Near O'Fallon:

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