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O'Fallon, MO

75°F
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O'Fallon, MO 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
Tuesday, May 19

Day

5/19
81°Hi
RealFeel® 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.
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RealFeel Shade™ 80°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
Cloudy, breezy and humid with a couple of showers and a thunderstorm; not as warm in the afternoon; thunderstorms can bring localized damaging wind gusts

Max UV Index3.0 (Moderate)

AccuLumen Brightness Index™1 (Dark)

WindWSW 14 mph

Wind Gusts24 mph

Probability of Precipitation88%

Probability of Thunderstorms53%

Precipitation0.30 in

Rain0.30 in

Hours of Precipitation3

Hours of Rain3

Cloud Cover96%

Morning

Afternoon

Night

5/19
57°Lo
RealFeel® 53°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
Cloudy and cooler

WindNNW 8 mph

Wind Gusts14 mph

Probability of Precipitation25%

Probability of Thunderstorms6%

Precipitation0.00 in

Cloud Cover97%

Evening

Overnight

Sun & Moon

14 hrs 23 mins
Rise 5:46 AM
Set 8:09 PM
Waxing Crescent
Rise 8:06 AM
Set 11:56 PM

Temperature History

5/19
High
Low
Forecast
81°
57°
Average
78°
58°
Last Year
84°
63°

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World North America United States Missouri O'Fallon

Weather Near O'Fallon:

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