National Weather Service United States Department of Commerce

Developing storm will spread rain across eastern U.S.; thunderstorms in the Southeast

A storm system developing in the South will move up the Mississippi River Valley on Sunday bringing rainfall to much of the eastern U.S., along with thunderstorms in the southeastern states. Some of the thunderstorms in the Southeast could produce large hail, damaging wind and heavy rain.
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Hazardous Weather Conditions

Current Conditions

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Saint Charles MO

7 Day Forecast

For More Weather Information:

Saint Louis, MO Local Forecast Office

This
Afternoon

Showers Chance for Measurable Precipitation 100%

Showers

High: 60 °F

Tonight

Rain Likely Chance for Measurable Precipitation 70%

Rain
Likely

Low: 37 °F

Monday

Slight Chance Snow Chance for Measurable Precipitation 20%

Slight Chc
Snow

High: 39 °F

Monday
Night

Mostly Cloudy

Mostly
Cloudy

Low: 26 °F

Tuesday

Mostly Sunny

Mostly
Sunny

High: 39 °F

Tuesday
Night

Partly Cloudy

Partly
Cloudy

Low: 26 °F

Wednesday

Slight Chance Rain/Snow Chance for Measurable Precipitation 20%

Slight Chc
Rain/Snow

High: 45 °F

Wednesday
Night

Mostly Cloudy

Mostly
Cloudy

Low: 30 °F

Thanksgiving
Day

Partly Sunny

Partly
Sunny

High: 43 °F

Detailed Forecast

  • This Afternoon Showers and possibly a thunderstorm. High near 60. Southeast wind 8 to 11 mph. Chance of precipitation is 100%.
  • Tonight Rain likely, mainly after midnight. Cloudy, with a low around 37. South wind 8 to 18 mph becoming west after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 70%.
  • Monday A 20 percent chance of snow. Mostly cloudy, with a high near 39. Breezy, with a west wind 15 to 20 mph, with gusts as high as 29 mph.
  • Monday Night Mostly cloudy, with a low around 26. West wind 10 to 15 mph.
  • Tuesday Mostly sunny, with a high near 39. West wind 6 to 11 mph.
  • Tuesday Night Partly cloudy, with a low around 26.
  • Wednesday A slight chance of snow before 9am, then a slight chance of rain. Partly sunny, with a high near 45. Chance of precipitation is 20%.
  • Wednesday Night Mostly cloudy, with a low around 30.
  • Thanksgiving Day Partly sunny, with a high near 43.
  • Thursday Night Mostly cloudy, with a low around 23.
  • Friday Mostly sunny, with a high near 37.
  • Friday Night Partly cloudy, with a low around 31.
  • Saturday Partly sunny, with a high near 41.