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

76°F

24°C

Humidity 67%
Wind Speed S 13 G 23 mph
Barometer 29.85 in (1010.0 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 14 Apr 9:54 pm CDT
Extended Forecast for

2 Miles NW O'Fallon MO

  • Tonight

    Tonight: Scattered showers and thunderstorms, mainly after 5am. Increasing clouds, with a low around 68. Southwest wind 11 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.

    Low: 68 °F

    Partly Cloudy
    then
    Scattered
    Showers

  • Wednesday

    Wednesday: Showers and thunderstorms likely, mainly after 3pm. Mostly cloudy, with a high near 80. South wind 10 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 60%.

    High: 80 °F

    Scattered
    T-storms then
    T-storms
    Likely

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely before 1am, then showers and possibly a thunderstorm between 1am and 4am, then showers after 4am. Low around 62. Southwest wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.

    Low: 62 °F

    Showers

  • Thursday

    Thursday: Showers likely before 1pm, then a chance of showers and thunderstorms between 1pm and 4pm, then a chance of showers after 4pm. Mostly sunny, with a high near 80. West wind 7 to 10 mph. Chance of precipitation is 60%.

    High: 80 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 60. South wind 3 to 5 mph.

    Low: 60 °F

    Mostly Clear

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 86.

    High: 86 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 55. Chance of precipitation is 70%.

    Low: 55 °F

    Chance
    T-storms then
    Showers
    Likely

  • Saturday

    Saturday: A chance of showers and thunderstorms. Partly sunny, with a high near 69. Chance of precipitation is 50%.

    High: 69 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A 20 percent chance of showers before 1am. Mostly clear, with a low around 40.

    Low: 40 °F

    Slight Chance
    Showers

Detailed Forecast

Tonight
Scattered showers and thunderstorms, mainly after 5am. Increasing clouds, with a low around 68. Southwest wind 11 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
Wednesday
Showers and thunderstorms likely, mainly after 3pm. Mostly cloudy, with a high near 80. South wind 10 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 60%.
Wednesday Night
Showers and thunderstorms likely before 1am, then showers and possibly a thunderstorm between 1am and 4am, then showers after 4am. Low around 62. Southwest wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.
Thursday
Showers likely before 1pm, then a chance of showers and thunderstorms between 1pm and 4pm, then a chance of showers after 4pm. Mostly sunny, with a high near 80. West wind 7 to 10 mph. Chance of precipitation is 60%.
Thursday Night
Mostly clear, with a low around 60. South wind 3 to 5 mph.
Friday
A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 86.
Friday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 55. Chance of precipitation is 70%.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 69. Chance of precipitation is 50%.
Saturday Night
A 20 percent chance of showers before 1am. Mostly clear, with a low around 40.
Sunday
Sunny, with a high near 62.
Sunday Night
Clear, with a low around 40.
Monday
Sunny, with a high near 70.
Monday Night
Mostly clear, with a low around 47.
Tuesday
Sunny, with a high near 74.
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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:
8:51 pm CDT Apr 14, 2026
Forecast Valid:
10pm CDT Apr 14, 2026-6pm CDT Apr 21, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation