National Weather Service United States Department of Commerce

Severe storms and heavy rain possible from mid-South to Upstate New York on Tuesday

Thunderstorms are expected to develop along and ahead of a cold front from the Tennessee Valley to Upstate New York on Tuesday. The storms will be capable of producing damaging wind gusts and heavy rainfall that could lead to isolated flash flooding.
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Current Conditions

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Saint Charles MO

7 Day Forecast

For More Weather Information:

Saint Louis, MO Local Forecast Office

Overnight

Severe Thunderstorms Chance for Measurable Precipitation 90%

Severe
Thunderstorms

Low: 71 °F

Tuesday

Heavy Rain Chance for Measurable Precipitation 30%

Heavy
Rain

High: 86 °F

Tuesday
Night

Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

Slight Chc
Thunderstorms

Low: 69 °F

Wednesday

Chance Thunderstorms Chance for Measurable Precipitation 40%

Chance
Thunderstorms

High: 89 °F

Wednesday
Night

Partly Cloudy

Partly
Cloudy

Low: 73 °F

Thursday

Sunny

Sunny

High: 94 °F

Thursday
Night

Partly Cloudy

Partly
Cloudy

Low: 74 °F

Friday

Chance Thunderstorms Chance for Measurable Precipitation 40%

Chance
Thunderstorms

High: 90 °F

Friday
Night

Chance Thunderstorms Chance for Measurable Precipitation 50%

Chance
Thunderstorms

Low: 67 °F

Detailed Forecast

  • Overnight Showers and thunderstorms. Some storms could be severe, with large hail, damaging winds, and heavy rain. Low around 71. Light southwest wind. Chance of precipitation is 90%.
  • Tuesday Scattered showers and thunderstorms before 7am, then a slight chance of showers between 7am and 9am. Some of the storms could produce heavy rainfall. Cloudy, then gradually becoming mostly sunny, with a high near 86. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 30%.
  • Tuesday Night A 20 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 69. Light and variable wind.
  • Wednesday A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 89. Light southeast wind becoming south 6 to 11 mph in the morning.
  • Wednesday Night Partly cloudy, with a low around 73. South wind around 8 mph.
  • Thursday Sunny, with a high near 94.
  • Thursday Night Partly cloudy, with a low around 74.
  • Friday A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90.
  • Friday Night A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67.
  • Saturday A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 77.
  • Saturday Night Mostly cloudy, with a low around 61.
  • Sunday Mostly sunny, with a high near 77.
  • Sunday Night Partly cloudy, with a low around 57.
  • Monday Mostly sunny, with a high near 78.