National Weather Service United States Department of Commerce

Severe weather expected for Upper Midwest on Wednesday

A potent storm system will bring a chance of severe thunderstorms to parts of the Upper Midwest on Wednesday and Wednesday night. Very large hail, damaging wind gusts, tornadoes and heavy rain are possible with these storms.
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Hazardous Weather Conditions

Current Conditions

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4 Miles W Piedmont MO

7 Day Forecast

For More Weather Information:

Saint Louis, MO Local Forecast Office

Overnight

Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

Slight Chc
Thunderstorms

Low: 66 °F

Wednesday

Chance Thunderstorms Chance for Measurable Precipitation 40%

Chance
Thunderstorms

High: 89 °F

Wednesday
Night

Partly Cloudy

Partly
Cloudy

Low: 71 °F

Thursday

Mostly Sunny

Mostly
Sunny

High: 94 °F

Thursday
Night

Partly Cloudy

Partly
Cloudy

Low: 71 °F

Friday

Chance Thunderstorms Chance for Measurable Precipitation 40%

Chance
Thunderstorms

High: 93 °F

Friday
Night

Chance Thunderstorms Chance for Measurable Precipitation 50%

Chance
Thunderstorms

Low: 69 °F

Saturday

Chance Thunderstorms Chance for Measurable Precipitation 40%

Chance
Thunderstorms

High: 81 °F

Saturday
Night

Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

Slight Chc
Thunderstorms

Low: 61 °F

Detailed Forecast

  • Overnight A 20 percent chance of showers and thunderstorms after 4am. Patchy fog. Otherwise, mostly cloudy, with a low around 66. Calm wind.
  • Wednesday A 40 percent chance of showers and thunderstorms, mainly after 11am. Patchy fog before 7am. Otherwise, partly sunny, with a high near 89. Calm wind becoming south 5 to 8 mph in the afternoon.
  • Wednesday Night Partly cloudy, with a low around 71. South wind 3 to 6 mph.
  • Thursday Mostly sunny, with a high near 94. Heat index values as high as 101. Light south wind increasing to 5 to 9 mph in the morning.
  • Thursday Night Partly cloudy, with a low around 71. South wind 5 to 7 mph.
  • Friday A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.
  • Friday Night A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69.
  • Saturday A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 81.
  • Saturday Night A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 61.
  • Sunday Mostly sunny, with a high near 80.
  • Sunday Night Partly cloudy, with a low around 59.
  • Monday Mostly sunny, with a high near 83.
  • Monday Night Mostly cloudy, with a low around 64.
  • Tuesday A 20 percent chance of showers. Partly sunny, with a high near 85.