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

66°F

19°C

Humidity 81%
Wind Speed SW 8 mph
Barometer 29.85 in (1010.1 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 10 Mar 2:54 am CDT
Extended Forecast for

2 Miles NW O'Fallon MO

  • Overnight

    Overnight: Mostly clear, with a low around 61. Southwest wind around 7 mph.

    Low: 61 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 84. South wind 7 to 16 mph, with gusts as high as 28 mph.

    High: 84 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 3am. Low around 52. Southwest wind 14 to 17 mph, with gusts as high as 32 mph. Chance of precipitation is 80%.

    Low: 52 °F

    Slight Chance
    T-storms then
    T-storms

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm before 1pm, then a chance of showers between 1pm and 2pm, then a chance of rain after 2pm. Temperature falling to around 49 by 5pm. Southwest wind 11 to 18 mph becoming northwest in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 100%.

    High: 67 °F⇓

    T-storms then
    Showers

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 33. Northwest wind 6 to 15 mph, with gusts as high as 26 mph.

    Low: 33 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 56.

    High: 56 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 46. Breezy.

    Low: 46 °F

    Mostly Cloudy
    then Partly
    Cloudy and
    Breezy

  • Friday

    Friday: Partly sunny, with a high near 63.

    High: 63 °F

    Partly Sunny

  • Friday Night

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

    Low: 40 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 61. Southwest wind around 7 mph.
Tuesday
Sunny, with a high near 84. South wind 7 to 16 mph, with gusts as high as 28 mph.
Tuesday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 3am. Low around 52. Southwest wind 14 to 17 mph, with gusts as high as 32 mph. Chance of precipitation is 80%.
Wednesday
Showers and possibly a thunderstorm before 1pm, then a chance of showers between 1pm and 2pm, then a chance of rain after 2pm. Temperature falling to around 49 by 5pm. Southwest wind 11 to 18 mph becoming northwest in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 100%.
Wednesday Night
Partly cloudy, with a low around 33. Northwest wind 6 to 15 mph, with gusts as high as 26 mph.
Thursday
Sunny, with a high near 56.
Thursday Night
Partly cloudy, with a low around 46. Breezy.
Friday
Partly sunny, with a high near 63.
Friday Night
Mostly cloudy, with a low around 40.
Saturday
Mostly sunny, with a high near 69.
Saturday Night
A 20 percent chance of rain. Partly cloudy, with a low around 48.
Sunday
Rain likely. Mostly cloudy, with a high near 61. Breezy. Chance of precipitation is 70%.
Sunday Night
A chance of rain and snow. Mostly cloudy, with a low around 22. Blustery. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 37.
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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:
1:25 am CDT Mar 10, 2026
Forecast Valid:
3am CDT Mar 10, 2026-6pm CDT Mar 16, 2026
 
Forecast Discussion
 
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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