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

47°F

8°C

Humidity 52%
Wind Speed E 5 mph
Barometer 30.08 in (1018.6 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill45°F (7°C)
Last update 25 Mar 3:54 am CDT
Extended Forecast for

2 Miles NW O'Fallon MO

  • Today

    Today: Mostly sunny, with a high near 79. Light southeast wind becoming southwest 5 to 10 mph in the morning.

    High: 79 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 65. South wind 7 to 11 mph, with gusts as high as 23 mph.

    Low: 65 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 91. Southwest wind 10 to 14 mph, with gusts as high as 28 mph.

    High: 91 °F

    Sunny

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm before 4am, then rain after 4am. Low around 43. Southwest wind 8 to 17 mph becoming north after midnight. Winds could gust as high as 28 mph. Chance of precipitation is 90%.

    Low: 43 °F

    Showers

  • Friday

    Friday: Rain, mainly before 7am. High near 53. North wind 13 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 80%.

    High: 53 °F

    Rain then
    Chance Rain

  • Friday Night

    Friday Night: Mostly clear, with a low around 32.

    Low: 32 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 59.

    High: 59 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 42.

    Low: 42 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 66.

    High: 66 °F

    Partly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 79. Light southeast wind becoming southwest 5 to 10 mph in the morning.
Tonight
Mostly clear, with a low around 65. South wind 7 to 11 mph, with gusts as high as 23 mph.
Thursday
Sunny, with a high near 91. Southwest wind 10 to 14 mph, with gusts as high as 28 mph.
Thursday Night
Showers and possibly a thunderstorm before 4am, then rain after 4am. Low around 43. Southwest wind 8 to 17 mph becoming north after midnight. Winds could gust as high as 28 mph. Chance of precipitation is 90%.
Friday
Rain, mainly before 7am. High near 53. North wind 13 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 80%.
Friday Night
Mostly clear, with a low around 32.
Saturday
Sunny, with a high near 59.
Saturday Night
Partly cloudy, with a low around 42.
Sunday
Partly sunny, with a high near 66.
Sunday Night
A 20 percent chance of rain and thunderstorms after 1am. Mostly cloudy, with a low around 55.
Monday
A 20 percent chance of rain and thunderstorms. Mostly sunny, with a high near 82.
Monday Night
A 30 percent chance of rain and thunderstorms. Mostly cloudy, with a low around 61.
Tuesday
A 40 percent chance of rain and thunderstorms. Partly sunny, with a high near 81.
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:
3:51 am CDT Mar 25, 2026
Forecast Valid:
4am CDT Mar 25, 2026-6pm CDT Mar 31, 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