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

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

Lat: 38.66°NLon: 90.66°WElev: 463ft.

Fair

30°F

-1°C

Humidity 39%
Wind Speed NW 8 mph
Barometer 30.49 in (1033.8 mb)
Dewpoint 8°F (-13°C)
Visibility 10.00 mi
Wind Chill22°F (-6°C)
Last update 23 Feb 2:54 pm CST
Extended Forecast for

3 Miles SSE Saint Peters MO

  • Tonight

    Tonight: Mostly clear, with a low around 20. Calm wind becoming south around 6 mph after midnight.

    Low: 20 °F

    Mostly Clear

  • Tuesday

    Tuesday: Partly sunny, with a high near 57. South wind 7 to 16 mph becoming southwest in the afternoon. Winds could gust as high as 36 mph.

    High: 57 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 35. Southwest wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 20 mph.

    Low: 35 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 53. Calm wind becoming east around 6 mph in the afternoon.

    High: 53 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Rain likely, mainly after midnight. Mostly cloudy, with a low around 37. East wind around 7 mph. Chance of precipitation is 60%.

    Low: 37 °F

    Chance Rain
    then Rain
    Likely

  • Thursday

    Thursday: A 30 percent chance of rain before noon. Partly sunny, with a high near 50.

    High: 50 °F

    Chance Rain
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 33.

    Low: 33 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 65.

    High: 65 °F

    Sunny

  • Friday Night

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

    Low: 42 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 20. Calm wind becoming south around 6 mph after midnight.
Tuesday
Partly sunny, with a high near 57. South wind 7 to 16 mph becoming southwest in the afternoon. Winds could gust as high as 36 mph.
Tuesday Night
Mostly cloudy, with a low around 35. Southwest wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 20 mph.
Wednesday
Mostly sunny, with a high near 53. Calm wind becoming east around 6 mph in the afternoon.
Wednesday Night
Rain likely, mainly after midnight. Mostly cloudy, with a low around 37. East wind around 7 mph. Chance of precipitation is 60%.
Thursday
A 30 percent chance of rain before noon. Partly sunny, with a high near 50.
Thursday Night
Mostly clear, with a low around 33.
Friday
Sunny, with a high near 65.
Friday Night
Mostly clear, with a low around 42.
Saturday
Sunny, with a high near 66.
Saturday Night
Mostly cloudy, with a low around 32.
Sunday
A chance of rain and snow. Partly sunny, with a high near 47. Chance of precipitation is 40%.
Sunday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 31.
Monday
A 30 percent chance of rain. Mostly cloudy, with a high near 46.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE Saint Peters MO
 38.74°N 90.57°W (Elev. 515 ft)
Last Update:
2:51 pm CST Feb 23, 2026
Forecast Valid:
3pm CST Feb 23, 2026-6pm CST Mar 2, 2026
 
Forecast Discussion
 
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Additional Resources

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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