National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

St. Louis Lambert International Airport (KSTL)

Lat: 38.75°NLon: 90.37°WElev: 604ft.

Mostly Cloudy and Breezy

49°F

9°C

Humidity 66%
Wind Speed W 21 G 35 mph
Barometer 29.88 in (1011.9 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Wind Chill42°F (6°C)
Last update 8 Nov 9:51 pm CST
Extended Forecast for

Saint Charles MO

  • Tonight

    Tonight: A chance of sprinkles and flurries after 5am. Increasing clouds, with a low around 35. Northwest wind around 18 mph, with gusts as high as 39 mph.

    Low: 35 °F

    Mostly Cloudy
    then Chance
    Sprinkles/Flurries

  • Sunday

    Sunday: A chance of flurries. Cloudy through mid morning, then gradual clearing, with a high near 38. Northwest wind 14 to 18 mph, with gusts as high as 30 mph.

    High: 38 °F

    Chance
    Flurries

  • Sunday Night

    Sunday Night: A chance of flurries before midnight. Partly cloudy, with a low around 24. Northwest wind 11 to 14 mph, with gusts as high as 24 mph.

    Low: 24 °F

    Chance
    Flurries

  • Monday

    Monday: Sunny, with a high near 39. Northwest wind 8 to 14 mph, with gusts as high as 23 mph.

    High: 39 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 27. West wind 5 to 7 mph becoming south after midnight.

    Low: 27 °F

    Mostly Clear

  • Veterans Day

    Veterans Day: Partly sunny, with a high near 55.

    High: 55 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 62.

    High: 62 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 37.

    Low: 37 °F

    Mostly Clear

Detailed Forecast

Tonight
A chance of sprinkles and flurries after 5am. Increasing clouds, with a low around 35. Northwest wind around 18 mph, with gusts as high as 39 mph.
Sunday
A chance of flurries. Cloudy through mid morning, then gradual clearing, with a high near 38. Northwest wind 14 to 18 mph, with gusts as high as 30 mph.
Sunday Night
A chance of flurries before midnight. Partly cloudy, with a low around 24. Northwest wind 11 to 14 mph, with gusts as high as 24 mph.
Monday
Sunny, with a high near 39. Northwest wind 8 to 14 mph, with gusts as high as 23 mph.
Monday Night
Mostly clear, with a low around 27. West wind 5 to 7 mph becoming south after midnight.
Veterans Day
Partly sunny, with a high near 55.
Tuesday Night
Mostly clear, with a low around 42.
Wednesday
Sunny, with a high near 62.
Wednesday Night
Mostly clear, with a low around 37.
Thursday
Mostly sunny, with a high near 61.
Thursday Night
Partly cloudy, with a low around 47.
Friday
Sunny, with a high near 71.
Friday Night
Partly cloudy, with a low around 55.
Saturday
Mostly sunny, with a high near 73.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Saint Charles MO
 38.78°N 90.51°W (Elev. 597 ft)
Last Update:
10:31 pm CST Nov 8, 2025
Forecast Valid:
10pm CST Nov 8, 2025-6pm CST Nov 15, 2025
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation