National Weather Service United States Department of Commerce

On Saturday, severe weather will be possible across portions of the northern Plains while dry and hot conditions begin returning to the West.

Severe weather is possible over parts of the northern Plains on Saturday. During the late afternoon and early evening hours, large hail and isolated tornadoes will be the primary threats with damaging winds becoming the greatest threat in the late evening hours. Out west, hot and dry conditions begin to return bringing increased heat dangers and fire weather concerns.
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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

Today

Thunderstorms Likely Chance for Measurable Precipitation 60%

Thunderstorms
Likely

High: 86 °F

Tonight

Chance Thunderstorms Chance for Measurable Precipitation 30%

Chance
Thunderstorms

Low: 70 °F

Sunday

Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

Slight Chc
Thunderstorms

High: 89 °F

Sunday
Night

Partly Cloudy

Partly
Cloudy

Low: 73 °F

Labor
Day

Thunderstorms Likely Chance for Measurable Precipitation 60%

Thunderstorms
Likely

High: 89 °F

Monday
Night

Thunderstorms Likely Chance for Measurable Precipitation 60%

Thunderstorms
Likely

Low: 71 °F

Tuesday

Chance Thunderstorms Chance for Measurable Precipitation 30%

Chance
Thunderstorms

High: 86 °F

Tuesday
Night

Chance Thunderstorms Chance for Measurable Precipitation 30%

Chance
Thunderstorms

Low: 70 °F

Wednesday

Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

Slight Chc
Thunderstorms

High: 88 °F

Detailed Forecast

  • Today Showers and thunderstorms likely, mainly after noon. Mostly cloudy, with a high near 86. Southwest wind around 10 mph. Chance of precipitation is 60%.
  • Tonight A 30 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 70. South wind 5 to 7 mph.
  • Sunday A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89. South wind 5 to 8 mph.
  • Sunday Night Partly cloudy, with a low around 73. South wind around 8 mph.
  • Labor Day Showers and thunderstorms likely. Mostly cloudy, with a high near 89. Southwest wind 8 to 14 mph. Chance of precipitation is 60%.
  • Monday Night Showers and thunderstorms likely. Mostly cloudy, with a low around 71. Chance of precipitation is 60%.
  • Tuesday A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 86.
  • Tuesday Night A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70.
  • Wednesday A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 88.
  • Wednesday Night A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72.
  • Thursday Mostly sunny, with a high near 92.
  • Thursday Night Partly cloudy, with a low around 72.
  • Friday Mostly sunny, with a high near 91.