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.

Fog/Mist

53°F

12°C

Humidity 93%
Wind Speed Calm
Barometer 29.99 in (1015.7 mb)
Dewpoint 51°F (11°C)
Visibility 4.00 mi
Last update 5 Mar 11:54 am CST
Extended Forecast for

2 Miles NW O'Fallon MO

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 67. Light and variable wind.

    High: 67 °F

    Mostly Cloudy

  • Tonight

    Tonight: A slight chance of rain and thunderstorms before 11pm, then a chance of rain and thunderstorms after 1am. Mostly cloudy, with a low around 55. Calm wind becoming southeast 5 to 7 mph after midnight. Chance of precipitation is 40%.

    Low: 55 °F

    Slight Chance
    T-storms then
    Chance Rain

  • Friday

    Friday: A chance of rain and thunderstorms before 9am, then a chance of rain between 9am and 10am. Partly sunny, with a high near 78. South wind 8 to 15 mph, with gusts as high as 28 mph. Chance of precipitation is 30%.

    High: 78 °F

    Chance Rain
    then Partly
    Sunny

  • Friday Night

    Friday Night: A chance of rain before 9pm, then a chance of rain and thunderstorms between 9pm and midnight, then showers and possibly a thunderstorm after midnight. Low around 57. South wind 10 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 90%.

    Low: 57 °F

    Chance
    T-storms then
    Showers

  • Saturday

    Saturday: A 40 percent chance of showers before noon. Partly sunny, with a high near 65. Southwest wind 8 to 14 mph becoming northwest in the afternoon. Winds could gust as high as 23 mph.

    High: 65 °F

    Chance
    Showers then
    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 39.

    Low: 39 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 65.

    High: 65 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 47.

    Low: 47 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 67. Light and variable wind.
Tonight
A slight chance of rain and thunderstorms before 11pm, then a chance of rain and thunderstorms after 1am. Mostly cloudy, with a low around 55. Calm wind becoming southeast 5 to 7 mph after midnight. Chance of precipitation is 40%.
Friday
A chance of rain and thunderstorms before 9am, then a chance of rain between 9am and 10am. Partly sunny, with a high near 78. South wind 8 to 15 mph, with gusts as high as 28 mph. Chance of precipitation is 30%.
Friday Night
A chance of rain before 9pm, then a chance of rain and thunderstorms between 9pm and midnight, then showers and possibly a thunderstorm after midnight. Low around 57. South wind 10 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 90%.
Saturday
A 40 percent chance of showers before noon. Partly sunny, with a high near 65. Southwest wind 8 to 14 mph becoming northwest in the afternoon. Winds could gust as high as 23 mph.
Saturday Night
Partly cloudy, with a low around 39.
Sunday
Sunny, with a high near 65.
Sunday Night
Mostly clear, with a low around 47.
Monday
Sunny, with a high near 77.
Monday Night
A 40 percent chance of showers and thunderstorms, mainly after midnight. Mostly clear, with a low around 59.
Tuesday
Showers and possibly a thunderstorm. High near 76. Chance of precipitation is 80%.
Tuesday Night
Showers and possibly a thunderstorm. Low around 49. Chance of precipitation is 90%.
Wednesday
Showers likely. Mostly cloudy, with a high near 60. Chance of precipitation is 70%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NW O'Fallon MO
 38.81°N 90.74°W (Elev. 499 ft)
Last Update:
11:01 am CST Mar 5, 2026
Forecast Valid:
12pm CST Mar 5, 2026-6pm CDT Mar 11, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation