National Weather Service United States Department of Commerce

Much needed precipitation continues across the Southwest; central and eastern U.S. prepare for more winter weather

Widespread and much-needed precipitation across the Southwest will begin to spread into the Plains through Saturday. As the moisture encounters an Arctic airmass dropping down through the north-central U.S., moderate to heavy snow is expected to develop across the Midwest Saturday and then move into portions of the Mid-Atlantic and Northeast on Sunday.
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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

Overnight

Mostly Cloudy

Mostly
Cloudy

Low: 27 °F

Saturday

Rain Likely Chance for Measurable Precipitation 60%

Rain
Likely

High: 43 °F

Saturday
Night

Rain/Snow Chance for Measurable Precipitation 100%

Rain/Snow

Low: 33 °F

Sunday

Rain/Snow Chance for Measurable Precipitation 90%

Rain/Snow

High: 37 °F

Sunday
Night

Slight Chance Snow Chance for Measurable Precipitation 20%

Slight Chc
Snow

Low: 14 °F

Monday

Mostly Sunny

Mostly
Sunny

High: 25 °F

Monday
Night

Mostly Cloudy

Mostly
Cloudy

Low: 20 °F

Tuesday

Mostly Sunny

Mostly
Sunny

High: 43 °F

Tuesday
Night

Partly Cloudy

Partly
Cloudy

Low: 30 °F

Detailed Forecast

  • Overnight Mostly cloudy, with a low around 27. Southeast wind 3 to 5 mph.
  • Saturday Rain likely, mainly after 3pm. Cloudy, with a high near 43. South wind 3 to 7 mph. Chance of precipitation is 60%.
  • Saturday Night Occasional rain before midnight, then occasional rain and snow. Low around 33. Southeast wind around 6 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.
  • Sunday Occasional rain and snow. High near 37. Light and variable wind becoming northwest 11 to 16 mph in the morning. Chance of precipitation is 90%.
  • Sunday Night A 20 percent chance of snow. Mostly cloudy, with a low around 14. Blustery, with a northwest wind 11 to 20 mph.
  • Monday Mostly sunny, with a high near 25.
  • Monday Night Mostly cloudy, with a low around 20.
  • Tuesday Mostly sunny, with a high near 43.
  • Tuesday Night Partly cloudy, with a low around 30.
  • Wednesday Partly sunny, with a high near 40.
  • Wednesday Night A 20 percent chance of snow. Mostly cloudy, with a low around 20.
  • Thursday Partly sunny, with a high near 29.
  • Thursday Night Partly cloudy, with a low around 12.
  • Friday Sunny, with a high near 30.