National Weather Service United States Department of Commerce

Slight Risk of severe thunderstorms Saturday

Severe thunderstorms capable of producing damaging winds appear likely across parts of the upper Midwest, Ohio Valley and southern Great Lakes Saturday afternoon and evening. Marginally severe wind gusts and hail will also be possible across much of Kansas and southern Nebraska and in Pennsylvania, southern New York State and New Jersey Saturday afternoon.
Read More...

Current Conditions

En Español

Share |

Saint Charles 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: 72 °F

Saturday

Chance Thunderstorms Chance for Measurable Precipitation 30%

Chance
Thunderstorms

High: 95 °F

Saturday
Night

Chance Thunderstorms Chance for Measurable Precipitation 40%

Chance
Thunderstorms

Low: 75 °F

Sunday

Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

Slight Chc
Thunderstorms

High: 90 °F

Sunday
Night

Mostly Clear

Mostly
Clear

Low: 64 °F

Monday

Sunny

Sunny

High: 80 °F

Monday
Night

Mostly Clear

Mostly
Clear

Low: 61 °F

Tuesday

Sunny

Sunny

High: 80 °F

Tuesday
Night

Mostly Clear

Mostly
Clear

Low: 61 °F

Detailed Forecast

  • Overnight A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72. South wind around 9 mph.
  • Saturday A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 95. Heat index values as high as 102. Southwest wind 8 to 11 mph.
  • Saturday Night A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 75. West wind 5 to 9 mph becoming south in the evening.
  • Sunday A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90. Northwest wind 8 to 17 mph.
  • Sunday Night Mostly clear, with a low around 64. Northwest wind 8 to 13 mph.
  • Monday Sunny, with a high near 80.
  • Monday Night Mostly clear, with a low around 61.
  • Tuesday Sunny, with a high near 80.
  • Tuesday Night Mostly clear, with a low around 61.
  • Wednesday Mostly sunny, with a high near 82.
  • Wednesday Night Partly cloudy, with a low around 64.
  • Thursday A 20 percent chance of showers. Mostly sunny, with a high near 83.
  • Thursday Night A 20 percent chance of showers. Mostly cloudy, with a low around 65.
  • Friday A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 82.