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.

A Few Clouds

78°F

26°C

Humidity 35%
Wind Speed SW 8 mph
Barometer 29.86 in (1010.6 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 16 Apr 6:54 pm CDT
Extended Forecast for

2 Miles NW O'Fallon MO

  • Tonight

    Tonight: Mostly clear, with a low around 60. Calm wind becoming south around 5 mph after midnight.

    Low: 60 °F

    Mostly Clear

  • Friday

    Friday: Scattered showers and thunderstorms, mainly after 5pm. Mostly sunny, with a high near 84. South wind 6 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.

    High: 84 °F

    Mostly Sunny
    then
    Scattered
    T-storms

  • Friday Night

    Friday Night: Showers and thunderstorms before 1am, then showers and possibly a thunderstorm, mainly after 1am. Low around 47. South wind 11 to 14 mph becoming west after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 100%.

    Low: 47 °F

    T-storms

  • Saturday

    Saturday: Scattered showers, mainly before 1pm. Mostly cloudy, then gradually becoming sunny, with a high near 59. Northwest wind around 15 mph, with gusts as high as 26 mph. Chance of precipitation is 40%.

    High: 59 °F

    Scattered
    Showers

  • Saturday Night

    Saturday Night: Clear, with a low around 39. West wind 6 to 11 mph, with gusts as high as 22 mph.

    Low: 39 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 66.

    High: 66 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 43.

    Low: 43 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 52.

    Low: 52 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 60. Calm wind becoming south around 5 mph after midnight.
Friday
Scattered showers and thunderstorms, mainly after 5pm. Mostly sunny, with a high near 84. South wind 6 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
Friday Night
Showers and thunderstorms before 1am, then showers and possibly a thunderstorm, mainly after 1am. Low around 47. South wind 11 to 14 mph becoming west after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 100%.
Saturday
Scattered showers, mainly before 1pm. Mostly cloudy, then gradually becoming sunny, with a high near 59. Northwest wind around 15 mph, with gusts as high as 26 mph. Chance of precipitation is 40%.
Saturday Night
Clear, with a low around 39. West wind 6 to 11 mph, with gusts as high as 22 mph.
Sunday
Sunny, with a high near 66.
Sunday Night
Mostly clear, with a low around 43.
Monday
Sunny, with a high near 74.
Monday Night
Mostly clear, with a low around 52.
Tuesday
Mostly sunny, with a high near 77.
Tuesday Night
Mostly clear, with a low around 57.
Wednesday
Sunny, with a high near 79.
Wednesday Night
A 20 percent chance of showers. Partly cloudy, with a low around 57.
Thursday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 79.
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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:
7:06 pm CDT Apr 16, 2026
Forecast Valid:
7pm CDT Apr 16, 2026-6pm CDT Apr 23, 2026
 
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Additional Resources

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High Temperature

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Chance of Precipitation