Heavy Snow in the Sierra Nevada; Heavy Rainfall in Texas Sunday
Heavy snow is expected in the Sierra Nevada mountain ranges into Saturday causing hazardous travel conditions. Winter Storm Warnings have been issued. Thunderstorms and moderate to heavy rainfall are expected across portions of eastern Texas into Louisiana on Sunday. Read More >
Current conditions at
St. Louis Downtown Airport (KCPS)
Lat: 38.56°NLon: 90.15°WElev: 410ft.N/A
| Humidity | NA |
| Wind Speed | NA |
| Barometer | NA |
| Dewpoint | N/A |
| Visibility | NA |
| Last update | *** Not a current observation *** |
Extended Forecast for
O'Fallon IL
Today
High: 50 °F
Sunny
Tonight
Low: 27 °F
Clear
Sunday
High: 54 °F
Sunny
Sunday Night
Low: 28 °F
Clear
Monday
High: 57 °F
Sunny
Monday Night
Low: 31 °F
Clear
Tuesday
High: 58 °F
Sunny
Tuesday Night
Low: 33 °F
Clear
Wednesday
High: 63 °F
Sunny
Detailed Forecast
Today
Sunny, with a high near 50. Calm wind becoming northwest around 5 mph.
Tonight
Clear, with a low around 27. Calm wind.
Sunday
Sunny, with a high near 54. Light northeast wind.
Sunday Night
Clear, with a low around 28. Light and variable wind.
Monday
Sunny, with a high near 57. Calm wind.
Monday Night
Clear, with a low around 31.
Tuesday
Sunny, with a high near 58.
Tuesday Night
Clear, with a low around 33.
Wednesday
Sunny, with a high near 63.
Wednesday Night
Partly cloudy, with a low around 43.
Thursday
Partly sunny, with a high near 65.
Thursday Night
Mostly cloudy, with a low around 49.
Friday
Partly sunny, with a high near 69.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
O'Fallon IL
38.59°N 89.92°W (Elev. 551 ft)
38.59°N 89.92°W (Elev. 551 ft)
6:16 am CST Nov 14, 2026
6am CST Nov 14, 2026-6pm CST Nov 20, 2026
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