Hazardous Weather Conditions
Current conditions at
St. Louis, Spirit Of St. Louis Airport (KSUS)
Lat: 38.66°NLon: 90.66°WElev: 463ft.
Fair
78°F
26°C
| Humidity | 79% |
| Wind Speed | NW 5 mph |
| Barometer | 29.98 in (1014.3 mb) |
| Dewpoint | 71°F (22°C) |
| Visibility | 10.00 mi |
| Heat Index | 80°F (27°C) |
| Last update | 17 Jul 7:54 am CDT |
Extended Forecast for
O'Fallon MO
Today
High: 84 °F
Scattered
T-stormsTonight
Low: 70 °F
Scattered
T-stormsFriday
High: 87 °F
Showers
Likely then
T-storms
LikelyFriday Night
Low: 74 °F
T-storms
Likely then
Chance
T-stormsSaturday
High: 93 °F
Chance
T-stormsSaturday Night
Low: 76 °F
Slight Chance
T-stormsSunday
High: 94 °F
Chance
T-stormsSunday Night
Low: 76 °F
Chance
T-stormsMonday
High: 95 °F
Slight Chance
Showers then
Slight Chance
T-storms
Detailed Forecast
Today
Scattered showers and thunderstorms, mainly after 11am. Mostly cloudy, with a high near 84. North wind 3 to 5 mph. Chance of precipitation is 40%.
Tonight
Scattered showers and thunderstorms, mainly before 8pm. Mostly cloudy, with a low around 70. Light northeast wind. Chance of precipitation is 30%.
Friday
Showers likely and possibly a thunderstorm before 4pm, then showers and thunderstorms likely after 4pm. Mostly cloudy, with a high near 87. Light and variable wind becoming southeast around 5 mph. Chance of precipitation is 60%.
Friday Night
Showers and thunderstorms likely, mainly before 7pm. Mostly cloudy, with a low around 74. Light south wind. Chance of precipitation is 60%.
Saturday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93. Southwest wind around 6 mph.
Saturday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 76.
Sunday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94.
Sunday Night
A 30 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 76.
Monday
A slight chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 95. Chance of precipitation is 20%.
Monday Night
Mostly clear, with a low around 78.
Tuesday
Sunny and hot, with a high near 97.
Tuesday Night
Mostly clear, with a low around 77.
Wednesday
Sunny and hot, with a high near 98.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
O'Fallon MO
38.81°N 90.71°W (Elev. 502 ft)
38.81°N 90.71°W (Elev. 502 ft)
8:15 am CDT Jul 17, 2025
8am CDT Jul 17, 2025-6pm CDT Jul 23, 2025
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