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.

Fair

17°F

-8°C

Humidity 92%
Wind Speed Calm
Barometer 30.48 in (1033.3 mb)
Dewpoint 15°F (-9°C)
Visibility 9.00 mi
Last update 28 Nov 6:54 am CST
Extended Forecast for

Saint Peters MO

Winter Weather Advisory November 29, 12:00am until November 30, 12:00am
Click here for hazard details and duration
Winter Weather Advisory

  • Today

    Today: Increasing clouds, with a high near 38. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 38 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Snow, possibly mixed with rain, becoming all snow after 5am. Low around 31. Southeast wind 5 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 2 inches possible.

    Low: 31 °F

    Cloudy then
    Rain/Snow

  • Saturday

    Saturday: Rain and snow, becoming all rain after 11am. High near 40. Southeast wind 13 to 15 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New snow accumulation of around an inch possible.

    High: 40 °F

    Rain/Snow
    then Rain

  • Saturday Night

    Saturday Night: Rain likely, mixing with snow after 9pm, then gradually ending. Cloudy, with a low around 24. South wind 10 to 15 mph becoming northwest after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 24 °F

    Rain/Snow
    Likely then
    Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 29. Northwest wind 7 to 14 mph, with gusts as high as 26 mph.

    High: 29 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 17.

    Low: 17 °F

    Mostly Cloudy

  • Monday

    Monday: A 20 percent chance of snow after noon. Mostly cloudy, with a high near 27.

    High: 27 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Monday Night

    Monday Night: A 30 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 18.

    Low: 18 °F

    Chance Snow

  • Tuesday

    Tuesday: Partly sunny, with a high near 31.

    High: 31 °F

    Partly Sunny

Detailed Forecast

Today
Increasing clouds, with a high near 38. Calm wind becoming southeast around 5 mph in the afternoon.
Tonight
Snow, possibly mixed with rain, becoming all snow after 5am. Low around 31. Southeast wind 5 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 2 inches possible.
Saturday
Rain and snow, becoming all rain after 11am. High near 40. Southeast wind 13 to 15 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New snow accumulation of around an inch possible.
Saturday Night
Rain likely, mixing with snow after 9pm, then gradually ending. Cloudy, with a low around 24. South wind 10 to 15 mph becoming northwest after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Sunday
Mostly cloudy, with a high near 29. Northwest wind 7 to 14 mph, with gusts as high as 26 mph.
Sunday Night
Mostly cloudy, with a low around 17.
Monday
A 20 percent chance of snow after noon. Mostly cloudy, with a high near 27.
Monday Night
A 30 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 18.
Tuesday
Partly sunny, with a high near 31.
Tuesday Night
Partly cloudy, with a low around 20.
Wednesday
Partly sunny, with a high near 40.
Wednesday Night
Mostly cloudy, with a low around 22.
Thursday
Partly sunny, with a high near 32.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Saint Peters MO
 38.79°N 90.62°W (Elev. 499 ft)
Last Update:
4:51 am CST Nov 28, 2025
Forecast Valid:
7am CST Nov 28, 2025-6pm CST Dec 4, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation