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Current conditions at
St. Louis, Spirit Of St. Louis Airport (KSUS)
Lat: 38.66°NLon: 90.66°WElev: 463ft.
Fair
35°F
2°C
| Humidity | 46% |
| Wind Speed | W 9 mph |
| Barometer | 30.53 in (1034.5 mb) |
| Dewpoint | 16°F (-9°C) |
| Visibility | 10.00 mi |
| Wind Chill | 28°F (-2°C) |
| Last update | 11 Jan 11:54 am CST |
Extended Forecast for
O'Fallon MO
This Afternoon
High: 40 °F
Sunny
Tonight
Low: 24 °F
Clear
Monday
High: 52 °F
Sunny
Monday Night
Low: 37 °F
Mostly Clear
Tuesday
High: 59 °F
Partly Sunny
Tuesday Night
Low: 38 °F
Mostly Cloudy
Wednesday
High: 43 °F
Partly Sunny
Wednesday Night
Low: 20 °F
Partly Cloudy
Thursday
High: 38 °F
Mostly Sunny
Detailed Forecast
This Afternoon
Sunny, with a high near 40. West wind 5 to 9 mph.
Tonight
Clear, with a low around 24. Southwest wind 3 to 7 mph.
Monday
Sunny, with a high near 52. Southwest wind 6 to 9 mph, with gusts as high as 20 mph.
Monday Night
Mostly clear, with a low around 37. Light southwest wind increasing to 5 to 9 mph in the evening.
Tuesday
Partly sunny, with a high near 59. West wind 9 to 14 mph, with gusts as high as 25 mph.
Tuesday Night
Mostly cloudy, with a low around 38.
Wednesday
Partly sunny, with a high near 43.
Wednesday Night
Partly cloudy, with a low around 20.
Thursday
Mostly sunny, with a high near 38.
Thursday Night
Mostly cloudy, with a low around 29.
Friday
Mostly cloudy, with a high near 41.
Friday Night
Mostly cloudy, with a low around 23.
Saturday
Partly sunny, with a high near 32.
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)
11:06 am CST Jan 11, 2026
12pm CST Jan 11, 2026-6pm CST Jan 17, 2026
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