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

38°F

3°C

Humidity 62%
Wind Speed NW 10 G 21 mph
Barometer 30.29 in (1026.1 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Wind Chill31°F (-1°C)
Last update 12 Mar 12:54 am CDT
Extended Forecast for

2 Miles NW O'Fallon MO

  • Overnight

    Overnight: Clear, with a low around 31. Northwest wind 6 to 9 mph.

    Low: 31 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 56. Light west wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 56 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 44. Breezy, with a south wind 11 to 21 mph, with gusts as high as 33 mph.

    Low: 44 °F

    Mostly Clear
    then Partly
    Cloudy and
    Breezy

  • Friday

    Friday: Mostly sunny, with a high near 60. West wind 9 to 15 mph, with gusts as high as 26 mph.

    High: 60 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 36. Northwest wind around 6 mph becoming northeast after midnight.

    Low: 36 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 62.

    High: 62 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of rain and thunderstorms after 1am. Mostly cloudy, with a low around 51.

    Low: 51 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Sunday

    Sunday: Rain likely and possibly a thunderstorm, then rain after 1pm. High near 64. Breezy. Chance of precipitation is 80%.

    High: 64 °F

    Rain and
    Breezy

  • Sunday Night

    Sunday Night: A chance of rain and snow before 1am. Mostly cloudy, with a low around 23. Blustery. Chance of precipitation is 30%.

    Low: 23 °F

    Chance
    Rain/Snow and
    Blustery

Detailed Forecast

Overnight
Clear, with a low around 31. Northwest wind 6 to 9 mph.
Thursday
Sunny, with a high near 56. Light west wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Thursday Night
Partly cloudy, with a low around 44. Breezy, with a south wind 11 to 21 mph, with gusts as high as 33 mph.
Friday
Mostly sunny, with a high near 60. West wind 9 to 15 mph, with gusts as high as 26 mph.
Friday Night
Mostly cloudy, with a low around 36. Northwest wind around 6 mph becoming northeast after midnight.
Saturday
Partly sunny, with a high near 62.
Saturday Night
A 20 percent chance of rain and thunderstorms after 1am. Mostly cloudy, with a low around 51.
Sunday
Rain likely and possibly a thunderstorm, then rain after 1pm. High near 64. Breezy. Chance of precipitation is 80%.
Sunday Night
A chance of rain and snow before 1am. Mostly cloudy, with a low around 23. Blustery. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 36. Breezy.
Monday Night
Mostly clear, with a low around 17.
Tuesday
Partly sunny, with a high near 43.
Tuesday Night
A slight chance of rain and snow. Mostly cloudy, with a low around 33. Chance of precipitation is 20%.
Wednesday
Partly sunny, with a high near 57.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NW O'Fallon MO
 38.81°N 90.74°W (Elev. 499 ft)
Last Update:
10:31 pm CDT Mar 11, 2026
Forecast Valid:
1am CDT Mar 12, 2026-6pm CDT Mar 18, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation