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.

Light Snow

29°F

-2°C

Humidity 69%
Wind Speed N 8 mph
Barometer 30.21 in (1023.7 mb)
Dewpoint 20°F (-7°C)
Visibility 8.00 mi
Wind Chill21°F (-6°C)
Last update 21 Feb 8:54 am CST
Extended Forecast for

2 Miles NW O'Fallon MO

  • Today

    Today: A chance of flurries before 10am. Cloudy, then gradually becoming mostly sunny, with a high near 41. Northwest wind 7 to 13 mph.

    High: 41 °F

    Chance
    Flurries

  • Tonight

    Tonight: Mostly clear, with a low around 21. Northwest wind 9 to 15 mph, with gusts as high as 25 mph.

    Low: 21 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 33. Northwest wind 15 to 18 mph, with gusts as high as 32 mph.

    High: 33 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 15. Northwest wind 14 to 16 mph, with gusts as high as 26 mph.

    Low: 15 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 33. Northwest wind 9 to 14 mph becoming light in the afternoon. Winds could gust as high as 23 mph.

    High: 33 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 19.

    Low: 19 °F

    Mostly Clear

  • Tuesday

    Tuesday: Partly sunny, with a high near 54.

    High: 54 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 40.

    Low: 40 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 62.

    High: 62 °F

    Partly Sunny

Detailed Forecast

Today
A chance of flurries before 10am. Cloudy, then gradually becoming mostly sunny, with a high near 41. Northwest wind 7 to 13 mph.
Tonight
Mostly clear, with a low around 21. Northwest wind 9 to 15 mph, with gusts as high as 25 mph.
Sunday
Sunny, with a high near 33. Northwest wind 15 to 18 mph, with gusts as high as 32 mph.
Sunday Night
Mostly clear, with a low around 15. Northwest wind 14 to 16 mph, with gusts as high as 26 mph.
Monday
Sunny, with a high near 33. Northwest wind 9 to 14 mph becoming light in the afternoon. Winds could gust as high as 23 mph.
Monday Night
Mostly clear, with a low around 19.
Tuesday
Partly sunny, with a high near 54.
Tuesday Night
Mostly cloudy, with a low around 40.
Wednesday
Partly sunny, with a high near 62.
Wednesday Night
A 30 percent chance of rain, mainly before midnight. Mostly cloudy, with a low around 36.
Thursday
A 20 percent chance of rain. Mostly sunny, with a high near 53.
Thursday Night
Mostly clear, with a low around 32.
Friday
Sunny, with a high near 63.
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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:
8:31 am CST Feb 21, 2026
Forecast Valid:
9am CST Feb 21, 2026-6pm CST Feb 27, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation