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.

A Few Clouds

80°F

27°C

Humidity 51%
Wind Speed S 10 G 21 mph
Barometer 29.70 in (1005.5 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 9 Mar 4:54 pm CDT
Extended Forecast for

2 Miles NW O'Fallon MO

  • Tonight

    Tonight: Partly cloudy, with a low around 61. Southwest wind 8 to 11 mph, with gusts as high as 20 mph.

    Low: 61 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 82. South wind 7 to 15 mph, with gusts as high as 26 mph.

    High: 82 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 10pm. Low around 53. South wind around 14 mph, with gusts as high as 24 mph. Chance of precipitation is 90%.

    Low: 53 °F

    Showers
    Likely then
    T-storms

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm. Temperature rising to near 63 by 10am, then falling to around 49 during the remainder of the day. Southwest wind 13 to 17 mph becoming northwest in the afternoon. Winds could gust as high as 29 mph. Chance of precipitation is 90%.

    High: 63 °F⇓

    T-storms then
    Showers

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 33. Northwest wind 6 to 15 mph, with gusts as high as 25 mph.

    Low: 33 °F

    Mostly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 55.

    High: 55 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 46.

    Low: 46 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 63.

    High: 63 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 41.

    Low: 41 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 61. Southwest wind 8 to 11 mph, with gusts as high as 20 mph.
Tuesday
Mostly sunny, with a high near 82. South wind 7 to 15 mph, with gusts as high as 26 mph.
Tuesday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 10pm. Low around 53. South wind around 14 mph, with gusts as high as 24 mph. Chance of precipitation is 90%.
Wednesday
Showers and possibly a thunderstorm. Temperature rising to near 63 by 10am, then falling to around 49 during the remainder of the day. Southwest wind 13 to 17 mph becoming northwest in the afternoon. Winds could gust as high as 29 mph. Chance of precipitation is 90%.
Wednesday Night
Mostly cloudy, with a low around 33. Northwest wind 6 to 15 mph, with gusts as high as 25 mph.
Thursday
Sunny, with a high near 55.
Thursday Night
Mostly cloudy, with a low around 46.
Friday
Mostly cloudy, with a high near 63.
Friday Night
Mostly cloudy, with a low around 41.
Saturday
Mostly sunny, with a high near 70.
Saturday Night
A 20 percent chance of rain. Partly cloudy, with a low around 50.
Sunday
A 50 percent chance of rain. Mostly cloudy, with a high near 64.
Sunday Night
A slight chance of rain and snow. Partly cloudy, with a low around 28. Chance of precipitation is 20%.
Monday
Mostly sunny, with a high near 41.
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:
3:11 pm CDT Mar 9, 2026
Forecast Valid:
5pm CDT Mar 9, 2026-6pm CDT Mar 16, 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