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St. Charles, MO

87°F
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St. Charles, 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
Monday, May 18

Day

5/18
81°Hi
RealFeel® 84°
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.
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Breezy and not as warm with intervals of clouds and sunshine, becoming humid in the afternoon with a couple of thunderstorms

Max UV Index5.0 (Moderate)

AccuLumen Brightness Index™5 (Medium)

WindS 14 mph

Wind Gusts28 mph

Probability of Precipitation87%

Probability of Thunderstorms78%

Precipitation0.37 in

Rain0.37 in

Hours of Precipitation2

Hours of Rain2

Cloud Cover70%

Morning

Afternoon

Night

5/18
72°Lo
RealFeel® 68°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
Overcast, very warm and humid with a strong thunderstorm; breezy in the evening; thunderstorms can bring hail and damaging winds

WindS 10 mph

Wind Gusts25 mph

Probability of Precipitation55%

Probability of Thunderstorms52%

Precipitation0.30 in

Rain0.30 in

Hours of Precipitation2

Hours of Rain2

Cloud Cover95%

Evening

Overnight

Sun & Moon

14 hrs 23 mins
Rise 5:47 AM
Set 8:10 PM
Waxing Crescent
Rise 6:58 AM
Set 11:01 PM

Temperature History

5/18
High
Low
Forecast
81°
72°
Average
78°
59°
Last Year
79°
60°
Record
94°
1996
39°
2002

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World North America United States Missouri St. Charles

Weather Near St. Charles:

  • O'Fallon, MO
  • Springfield, IL
  • St. Louis, MO
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