Hazardous Weather Conditions

Current conditions at

St. Louis, Spirit Of St. Louis Airport (KSUS)

Lat: 38.66°NLon: 90.66°WElev: 463ft.

Overcast

71°F

22°C

Humidity 96%
Wind Speed Calm
Barometer 29.81 in (1008.7 mb)
Dewpoint 70°F (21°C)
Visibility 8.00 mi
Last update 18 Jun 5:54 am CDT
Extended Forecast for

O'Fallon MO

  • Today

    Today: A chance of showers and thunderstorms before 9am, then showers likely and possibly a thunderstorm between 9am and 10am, then a chance of showers and thunderstorms after 10am.  Mostly cloudy, with a high near 83. Light and variable wind becoming southwest 10 to 15 mph in the morning. Winds could gust as high as 24 mph.  Chance of precipitation is 60%.

    High: 83 °F

    Showers
    Likely then
    Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and midnight.  Mostly cloudy, then gradually becoming mostly clear, with a low around 66. West wind 6 to 9 mph.  Chance of precipitation is 40%.

    Low: 66 °F

    Chance
    T-storms then
    Partly Cloudy

  • Juneteenth

    Juneteenth: Sunny, with a high near 85. Northwest wind around 8 mph.

    High: 85 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 66. Calm wind.

    Low: 66 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 91. South wind 3 to 8 mph.

    High: 91 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 75.

    Low: 75 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 94.

    High: 94 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 76.

    Low: 76 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 95.

    High: 95 °F

    Sunny

Detailed Forecast

Today
A chance of showers and thunderstorms before 9am, then showers likely and possibly a thunderstorm between 9am and 10am, then a chance of showers and thunderstorms after 10am. Mostly cloudy, with a high near 83. Light and variable wind becoming southwest 10 to 15 mph in the morning. Winds could gust as high as 24 mph. Chance of precipitation is 60%.
Tonight
A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and midnight. Mostly cloudy, then gradually becoming mostly clear, with a low around 66. West wind 6 to 9 mph. Chance of precipitation is 40%.
Juneteenth
Sunny, with a high near 85. Northwest wind around 8 mph.
Thursday Night
Mostly clear, with a low around 66. Calm wind.
Friday
Sunny, with a high near 91. South wind 3 to 8 mph.
Friday Night
Mostly clear, with a low around 75.
Saturday
Sunny, with a high near 94.
Saturday Night
Mostly clear, with a low around 76.
Sunday
Sunny, with a high near 95.
Sunday Night
Mostly clear, with a low around 75.
Monday
Sunny, with a high near 94.
Monday Night
Mostly clear, with a low around 75.
Tuesday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 93.
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ABOUT THIS FORECAST

 
Point Forecast:
O'Fallon MO
 38.79°N 90.71°W (Elev. 535 ft)
5:21 am CDT Jun 18, 2025
6am CDT Jun 18, 2025-6pm CDT Jun 24, 2025
 
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Additional Resources

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