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

50°F

10°C

Humidity 35%
Wind Speed NE 9 mph
Barometer 30.36 in (1028.4 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Wind Chill46°F (8°C)
Last update 23 Mar 6:54 pm CDT
Extended Forecast for

3 Miles SSE Saint Peters MO

  • Tonight

    Tonight: Mostly cloudy, with a low around 38. Light east wind increasing to 5 to 9 mph after midnight. Winds could gust as high as 23 mph.

    Low: 38 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 63. Southeast wind 5 to 9 mph, with gusts as high as 21 mph.

    High: 63 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 45. Southeast wind 7 to 9 mph.

    Low: 45 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 78. Light south wind increasing to 5 to 9 mph in the morning.

    High: 78 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 63. South wind 6 to 9 mph.

    Low: 63 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 90.

    High: 90 °F

    Sunny

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 43. Breezy. Chance of precipitation is 80%.

    Low: 43 °F

    Chance
    T-storms then
    Showers and
    Breezy

  • Friday

    Friday: A chance of showers before 1pm, then a slight chance of rain after 1pm. Mostly cloudy, with a high near 52. Chance of precipitation is 40%.

    High: 52 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 33.

    Low: 33 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 38. Light east wind increasing to 5 to 9 mph after midnight. Winds could gust as high as 23 mph.
Tuesday
Mostly sunny, with a high near 63. Southeast wind 5 to 9 mph, with gusts as high as 21 mph.
Tuesday Night
Mostly cloudy, with a low around 45. Southeast wind 7 to 9 mph.
Wednesday
Mostly sunny, with a high near 78. Light south wind increasing to 5 to 9 mph in the morning.
Wednesday Night
Mostly clear, with a low around 63. South wind 6 to 9 mph.
Thursday
Sunny, with a high near 90.
Thursday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 43. Breezy. Chance of precipitation is 80%.
Friday
A chance of showers before 1pm, then a slight chance of rain after 1pm. Mostly cloudy, with a high near 52. Chance of precipitation is 40%.
Friday Night
Partly cloudy, with a low around 33.
Saturday
Sunny, with a high near 57.
Saturday Night
Partly cloudy, with a low around 39.
Sunday
Mostly sunny, with a high near 64.
Sunday Night
Mostly cloudy, with a low around 47.
Monday
A 20 percent chance of rain. Mostly sunny, with a high near 73.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE Saint Peters MO
 38.74°N 90.57°W (Elev. 515 ft)
Last Update:
5:21 pm CDT Mar 23, 2026
Forecast Valid:
6pm CDT Mar 23, 2026-6pm CDT Mar 30, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation