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

Hazardous Weather Conditions

Current conditions at

St. Louis, Spirit Of St. Louis Airport (KSUS)

Lat: 38.66°NLon: 90.66°WElev: 463ft.

Overcast

27°F

-3°C

Humidity 69%
Wind Speed N 14 G 22 mph
Barometer 30.30 in (1026.8 mb)
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Wind Chill16°F (-9°C)
Last update 4 Dec 12:54 am CST
Extended Forecast for

3 Miles SW Lake St. Louis MO

  • Overnight

    Overnight: A slight chance of snow before 2am, then a chance of flurries between 2am and 4am. Cloudy, with a low around 13. North wind 7 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.

    Low: 13 °F

    Slight Chance
    Snow

  • Thursday

    Thursday: Mostly cloudy, then gradually becoming sunny, with a high near 22. North wind 5 to 7 mph becoming calm in the afternoon.

    High: 22 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 13. Calm wind becoming south around 5 mph after midnight.

    Low: 13 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 40. Calm wind becoming southwest around 6 mph.

    High: 40 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 25. Light southwest wind.

    Low: 25 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 39.

    High: 39 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 24.

    Low: 24 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Sunday

    Sunday: A 20 percent chance of snow before noon. Mostly cloudy, with a high near 32.

    High: 32 °F

    Slight Chance
    Snow then
    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 15.

    Low: 15 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A slight chance of snow before 2am, then a chance of flurries between 2am and 4am. Cloudy, with a low around 13. North wind 7 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 22. North wind 5 to 7 mph becoming calm in the afternoon.
Thursday Night
Partly cloudy, with a low around 13. Calm wind becoming south around 5 mph after midnight.
Friday
Sunny, with a high near 40. Calm wind becoming southwest around 6 mph.
Friday Night
Partly cloudy, with a low around 25. Light southwest wind.
Saturday
Partly sunny, with a high near 39.
Saturday Night
A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 24.
Sunday
A 20 percent chance of snow before noon. Mostly cloudy, with a high near 32.
Sunday Night
Mostly cloudy, with a low around 15.
Monday
Mostly sunny, with a high near 33.
Monday Night
Partly cloudy, with a low around 23.
Tuesday
Mostly sunny, with a high near 45.
Tuesday Night
Mostly cloudy, with a low around 33.
Wednesday
A 20 percent chance of rain. Partly sunny, with a high near 49.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SW Lake St. Louis MO
 38.77°N 90.82°W (Elev. 597 ft)
Last Update:
10:11 pm CST Dec 3, 2025
Forecast Valid:
1am CST Dec 4, 2025-6pm CST Dec 10, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation