


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
High: 83 °F
Showers
Likely then
Chance
T-stormsTonight
Low: 66 °F
Chance
T-storms then
Partly CloudyJuneteenth
High: 85 °F
Sunny
Thursday Night
Low: 66 °F
Mostly Clear
Friday
High: 91 °F
Sunny
Friday Night
Low: 75 °F
Mostly Clear
Saturday
High: 94 °F
Sunny
Saturday Night
Low: 76 °F
Mostly Clear
Sunday
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.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
O'Fallon MO
38.79°N 90.71°W (Elev. 535 ft)
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