National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

St. Louis, Spirit Of St. Louis Airport (KSUS)

Lat: 38.66°NLon: 90.66°WElev: 463ft.

Fair

37°F

3°C

Humidity 93%
Wind Speed Calm
Barometer 30.28 in (1025.6 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Last update 6 Apr 2:54 am CDT
Extended Forecast for

2 Miles NW O'Fallon MO

  • Overnight

    Overnight: Clear, with a low around 42. West wind 3 to 5 mph.

    Low: 42 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 62. North wind 6 to 10 mph.

    High: 62 °F

    Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 37. North wind 7 to 10 mph, with gusts as high as 20 mph.

    Low: 37 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 55. East wind around 10 mph.

    High: 55 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 41. East wind around 9 mph.

    Low: 41 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 72.

    High: 72 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 55.

    Low: 55 °F

    Partly Cloudy

  • Thursday

    Thursday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 72. Chance of precipitation is 30%.

    High: 72 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 57.

    Low: 57 °F

    Chance
    T-storms

Detailed Forecast

Overnight
Clear, with a low around 42. West wind 3 to 5 mph.
Monday
Sunny, with a high near 62. North wind 6 to 10 mph.
Monday Night
Increasing clouds, with a low around 37. North wind 7 to 10 mph, with gusts as high as 20 mph.
Tuesday
Mostly cloudy, with a high near 55. East wind around 10 mph.
Tuesday Night
Mostly cloudy, with a low around 41. East wind around 9 mph.
Wednesday
Mostly sunny, with a high near 72.
Wednesday Night
Partly cloudy, with a low around 55.
Thursday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 72. Chance of precipitation is 30%.
Thursday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 57.
Friday
Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 72. Chance of precipitation is 60%.
Friday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 56.
Saturday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 79.
Saturday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 61.
Sunday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 81.
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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:
2:41 am CDT Apr 6, 2026
Forecast Valid:
3am CDT Apr 6, 2026-6pm CDT Apr 12, 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