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Big heat is coming to the Northeast, so are more downpours Chevron right
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O'Fallon, MO

70°F
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O'Fallon

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O'Fallon, MO Weather
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Winter Center
Today Hourly Daily Radar MinuteCast Monthly Air Quality Health & Activities
Tuesday, June 17

Day

6/17
88°Hi
RealFeel® 95°
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™ 90°
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
Humid and warmer with more clouds than sun

Max UV Index7 (High)

AccuLumen Brightness Index™6 (Medium)

WindSSW 6 mph

Wind Gusts10 mph

Probability of Precipitation25%

Probability of Thunderstorms6%

Precipitation0.00 in

Cloud Cover70%

Morning

Afternoon

Night

6/17
72°Lo
RealFeel® 75°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
Warm and humid with increasing clouds

WindS 7 mph

Wind Gusts10 mph

Probability of Precipitation25%

Probability of Thunderstorms6%

Precipitation0.00 in

Cloud Cover40%

Evening

Overnight

Sun & Moon

14 hrs 53 mins
Rise 5:37 AM
Set 8:30 PM
Waning Gibbous
Rise 12:29 AM
Set 11:50 AM

Temperature History

6/17
High
Low
Forecast
88°
72°
Average
85°
64°
Last Year
94°
73°

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World North America United States Missouri O'Fallon

Weather Near O'Fallon:

  • St. Charles, MO
  • St. Louis, MO
  • St. Peters, MO
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