St. Charles, MO Weather Forecast

Today's Weather

Sat, Sep 19

Partly sunny and hot with the temperature tying the record high from 1955; danger of dehydration and heatstroke if outside for extended periods of time Hi: 96°

Tonight: Clear to partly cloudy and warm Lo: 70°

Current Weather

11:33 AM

Looking Ahead

Danger of dehydration and heat stroke if outside for extended periods of time today. Record high temperatures today. Thunderstorms in the area tomorrow afternoon and evening.

St. Charles Weather Radar

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Clouds

Temperature

Hourly Weather

10-Day Weather Forecast

Today

9/19

96° 70°

Record-tying heat

Night: Mainly clear and warm

25%

Sun

9/20

88° 68°

Warm; a stray p.m. t-storm

An evening t-storm or two

55%

Mon

9/21

73° 62°

Humid with a thunderstorm

Cloudy with a stray shower

55%

Tue

9/22

67° 57°

Cloudy and less humid

Mostly cloudy

23%

Wed

9/23

71° 56°

Pleasant with clouds and sun

Partly cloudy

14%

Thu

9/24

73° 58°

Mostly cloudy

25%

Fri

9/25

73° 56°

Times of clouds and sun

Partly cloudy

25%

Sat

9/26

75° 55°

Decreasing clouds

Clear

10%

Sun

9/27

74° 54°

Plenty of sun

Clear

Mon

9/28

78° 56°

Mostly sunny

Clear to partly cloudy

Sun & Moon

12 hrs 17 mins

Rise 6:47 AM

Set 7:04 PM

Waxing Gibbous

Rise 3:20 PM

Set 12:23 AM

Air Quality

Air Quality Fair

The air quality is generally acceptable for most individuals. However, sensitive groups may experience minor to moderate symptoms from long-term exposure.