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

56°F

13°C

Humidity 37%
Wind Speed NW 15 mph
Barometer 30.32 in (1026.9 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Last update 5 Apr 12:54 pm CDT
Extended Forecast for

2 Miles NW O'Fallon MO

  • This Afternoon

    This Afternoon: Sunny, with a high near 59. Northwest wind 11 to 13 mph, with gusts as high as 21 mph.

    High: 59 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 40. Northwest wind 5 to 7 mph becoming southwest after midnight.

    Low: 40 °F

    Clear

  • Monday

    Monday: Increasing clouds, with a high near 60. Northwest wind 6 to 9 mph.

    High: 60 °F

    Increasing
    Clouds

  • Monday Night

    Monday Night: A chance of rain showers after midnight, mixing with snow after 4am. Mostly cloudy, with a low around 37. Northeast wind 7 to 10 mph. Chance of precipitation is 30%.

    Low: 37 °F

    Mostly Cloudy
    then Chance
    Rain/Snow

  • Tuesday

    Tuesday: A 30 percent chance of snow showers before 7am. Mostly cloudy, with a high near 54. East wind around 9 mph.

    High: 54 °F

    Chance Snow
    Showers then
    Partly Sunny

  • Tuesday Night

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

    Low: 41 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 74.

    High: 74 °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 73. Chance of precipitation is 30%.

    High: 73 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Sunny, with a high near 59. Northwest wind 11 to 13 mph, with gusts as high as 21 mph.
Tonight
Clear, with a low around 40. Northwest wind 5 to 7 mph becoming southwest after midnight.
Monday
Increasing clouds, with a high near 60. Northwest wind 6 to 9 mph.
Monday Night
A chance of rain showers after midnight, mixing with snow after 4am. Mostly cloudy, with a low around 37. Northeast wind 7 to 10 mph. Chance of precipitation is 30%.
Tuesday
A 30 percent chance of snow showers before 7am. Mostly cloudy, with a high near 54. East wind around 9 mph.
Tuesday Night
Mostly cloudy, with a low around 41.
Wednesday
Mostly sunny, with a high near 74.
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 73. Chance of precipitation is 30%.
Thursday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 57.
Friday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 75.
Friday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 57.
Saturday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 80.
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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:
1:26 pm CDT Apr 5, 2026
Forecast Valid:
1pm CDT Apr 5, 2026-6pm CDT Apr 11, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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