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St. Charles, MO

90°F
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St. Charles

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St. Charles, MO Weather
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Winter Center

Today

 Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities
Extreme Heat Warning

Today's Weather

Mon, Aug 10

Cloudy with thunderstorms this morning, then sun breaking through clouds at times this afternoon with a shower in spots; hot and humid Hi: 93°

Tonight: Partly cloudy, very warm and humid Lo: 78°

Current Weather

1:50 PM

90°F
RealFeel® 106°
Cloudy More Details
RealFeel Shade™ 99°
Heat Index 104°
Wind SSW 3 mph
Wind Gusts 6 mph
Air Quality Poor

Looking Ahead

Danger of dehydration and heat stroke if outside for extended periods of time tomorrow

St. Charles Weather Radar

St. Charles Weather Radar
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Clouds
Temperature

Hourly Weather

2 PM 90°
rain drop 40%
3 PM 91°
rain drop 37%
4 PM 92°
rain drop 33%
5 PM 93°
rain drop 32%
6 PM 92°
rain drop 32%
7 PM 89°
rain drop 21%
8 PM 86°
rain drop 0%
9 PM 83°
rain drop 0%
10 PM 81°
rain drop 0%
11 PM 80°
rain drop 0%
12 AM 79°
rain drop 0%
1 AM 79°
rain drop 0%

10-Day Weather Forecast

Today

8/10

93° 78°

Hot and humid; a.m. t-storms

Night: Partly cloudy and very warm
100%

Tue

8/11

97° 76°

Hot with clouds and sun

Partly cloudy, warm and humid
3%

Wed

8/12

93° 75°

Partly sunny, a t-storm; hot

A shower and t-storm; humid
55%

Thu

8/13

94° 73°

Hot and humid with a t-storm

Humid with thunderstorms late
55%

Fri

8/14

93° 73°

A t-storm around in the p.m.

Mainly clear and humid
55%

Sat

8/15

96° 70°

Mostly sunny and hot

Mainly clear and humid
11%

Sun

8/16

91° 68°

Humid; a strong p.m. t-storm

Humid with a few showers late
55%

Mon

8/17

86° 67°

A morning shower in the area

Clear
49%

Tue

8/18

83° 66°

Sunny

Clear
1%

Wed

8/19

86° 68°

Sunshine and a few clouds

Mainly clear and humid
4%

Sun & Moon

13 hrs 52 mins
Rise 6:11 AM
Set 8:03 PM
Waning Crescent
Rise 3:21 AM
Set 6:56 PM

Air Quality

See More
Air Quality Poor

The air has reached a high level of pollution and is unhealthy for sensitive groups. Reduce time spent outside if you are feeling symptoms such as difficulty breathing or throat irritation.

Allergy Outlook

See All
Tree Pollen Low Data is not supported in this location Ragweed Pollen Low Data is not supported in this location Mold Moderate Data is not supported in this location Grass Pollen High Data is not supported in this location Dust & Dander Extreme Data is not supported in this location

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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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