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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6 Miles ESE Chesterfield IL

7 Day Forecast

For More Weather Information:

Saint Louis, MO Local Forecast Office

Overnight

Chance Showers Chance for Measurable Precipitation 50%

Chance
Showers

Low: 50 °F

Sunday

Showers Chance for Measurable Precipitation 100%

Showers

High: 57 °F

Sunday
Night

Rain Chance for Measurable Precipitation 90%

Rain

Low: 35 °F

Monday

Chance Snow Chance for Measurable Precipitation 30%

Chance
Snow

High: 39 °F

Monday
Night

Mostly Cloudy

Mostly
Cloudy

Low: 23 °F

Tuesday

Mostly Sunny

Mostly
Sunny

High: 36 °F

Tuesday
Night

Partly Cloudy

Partly
Cloudy

Low: 25 °F

Wednesday

Slight Chance Rain/Snow Chance for Measurable Precipitation 20%

Slight Chc
Rain/Snow

High: 41 °F

Wednesday
Night

Mostly Cloudy

Mostly
Cloudy

Low: 28 °F

Detailed Forecast

  • Overnight A 50 percent chance of showers. Cloudy, with a low around 50. South wind around 14 mph.
  • Sunday Showers, with thunderstorms also possible after 9am. High near 57. Southeast wind 9 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 100%.
  • Sunday Night Occasional rain. Low around 35. Southeast wind 8 to 18 mph becoming west after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 90%.
  • Monday A 30 percent chance of snow before noon. Mostly cloudy, with a high near 39. Breezy, with a west wind 16 to 22 mph, with gusts as high as 29 mph.
  • Monday Night Mostly cloudy, with a low around 23. West wind 11 to 15 mph, with gusts as high as 24 mph.
  • Tuesday Mostly sunny, with a high near 36.
  • Tuesday Night Partly cloudy, with a low around 25.
  • Wednesday A slight chance of rain and snow. Partly sunny, with a high near 41. Chance of precipitation is 20%.
  • Wednesday Night Mostly cloudy, with a low around 28.
  • Thanksgiving Day Partly sunny, with a high near 39.
  • Thursday Night Mostly cloudy, with a low around 22.
  • Friday Mostly sunny, with a high near 32.
  • Friday Night Partly cloudy, with a low around 21.
  • Saturday Mostly sunny, with a high near 33.