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

21°F

-6°C

Humidity 62%
Wind Speed S 3 mph
Barometer 30.30 in (1027.1 mb)
Dewpoint 10°F (-12°C)
Visibility 10.00 mi
Last update 23 Feb 11:54 pm CST
Extended Forecast for

2 Miles NW O'Fallon MO

  • Overnight

    Overnight: Partly cloudy, with a low around 21. Calm wind becoming south 5 to 8 mph.

    Low: 21 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 59. Breezy, with a south wind 9 to 14 mph becoming southwest 15 to 20 mph in the afternoon. Winds could gust as high as 36 mph.

    High: 59 °F

    Mostly Cloudy
    then Mostly
    Cloudy and
    Breezy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 34. West wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 23 mph.

    Low: 34 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 52. Calm wind becoming east around 5 mph in the afternoon.

    High: 52 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Rain likely, mainly after midnight. Mostly cloudy, with a low around 36. East wind 5 to 7 mph. Chance of precipitation is 60%.

    Low: 36 °F

    Rain Likely

  • Thursday

    Thursday: A 20 percent chance of rain before noon. Partly sunny, with a high near 51.

    High: 51 °F

    Slight 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 41.

    Low: 41 °F

    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 21. Calm wind becoming south 5 to 8 mph.
Tuesday
Mostly cloudy, with a high near 59. Breezy, with a south wind 9 to 14 mph becoming southwest 15 to 20 mph in the afternoon. Winds could gust as high as 36 mph.
Tuesday Night
Mostly cloudy, with a low around 34. West wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 23 mph.
Wednesday
Partly sunny, with a high near 52. Calm wind becoming east around 5 mph in the afternoon.
Wednesday Night
Rain likely, mainly after midnight. Mostly cloudy, with a low around 36. East wind 5 to 7 mph. Chance of precipitation is 60%.
Thursday
A 20 percent chance of rain before noon. Partly sunny, with a high near 51.
Thursday Night
Mostly clear, with a low around 33.
Friday
Sunny, with a high near 65.
Friday Night
Mostly clear, with a low around 41.
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.
Basemap Options
Click map to change the forecast location
Loading map...
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:
11:56 pm CST Feb 23, 2026
Forecast Valid:
12am CST Feb 24, 2026-6pm CST Mar 2, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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