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Over 250 million face dangerous heat dome into 4th of July weekend. Click for details. Chevron right
Where will there be storms into 4th of July weekend? Click for the forecast. Chevron right

O'Fallon, IL

83°F
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O'Fallon

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O'Fallon, IL Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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Winter Center
Today Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities
Wednesday, July 15

Day

7/15
85°Hi
RealFeel® 92°
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™ 83°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
Abundant sunshine

Max UV Index11.0 (Extreme)

WindNNE 5 mph

Wind Gusts12 mph

Probability of Precipitation20%

Probability of Thunderstorms0%

Precipitation0.00 in

Cloud Cover4%

Morning

Afternoon

Night

7/15
64°Lo
RealFeel® 64°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
Mostly clear

WindNNE 6 mph

Wind Gusts12 mph

Probability of Precipitation10%

Probability of Thunderstorms0%

Precipitation0.00 in

Cloud Cover17%

Evening

Overnight

Sun & Moon

14 hrs 37 mins
Rise 5:47 AM
Set 8:24 PM
Waxing Crescent
Rise 7:04 AM
Set 9:39 PM

Temperature History

7/15
High
Low
Forecast
85°
64°
Average
91°
68°
Last Year
89°
73°
Record
104°
1980
51°
1967

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10-Day

Monthly

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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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