Hazardous Weather Conditions
Current conditions at
St. Louis Downtown Airport (KCPS)
Lat: 38.56°NLon: 90.15°WElev: 410ft.
Fog/Mist
55°F
13°C
| Humidity | 100% |
| Wind Speed | S 9 mph |
| Barometer | 29.79 in (1008.9 mb) |
| Dewpoint | 55°F (13°C) |
| Visibility | 1.75 mi |
| Wind Chill | 53°F (12°C) |
| Last update | 27 Dec 3:53 pm CST |
Extended Forecast for
5 Miles N O'Fallon IL
Tonight
Low: 59 °F
Areas Fog
then CloudySunday
High: 68 °F⇓
Slight Chance
Rain then
Rain and
BreezySunday Night
Low: 19 °F
Chance
Rain/Snow and
Blustery then
Mostly Clear
and BreezyMonday
High: 28 °F
Mostly Sunny
and BreezyMonday Night
Low: 17 °F
Mostly Clear
Tuesday
High: 33 °F
Sunny
Tuesday Night
Low: 26 °F
Mostly Clear
Wednesday
High: 43 °F
Mostly Sunny
Wednesday Night
Low: 27 °F
Partly Cloudy
Detailed Forecast
Tonight
Patchy fog between 10pm and midnight. Otherwise, cloudy, with a low around 59. South wind 8 to 11 mph, with gusts as high as 23 mph.
Sunday
Rain and thunderstorms likely, then rain and possibly a thunderstorm after 3pm. Temperature rising to near 68 by noon, then falling to around 54 during the remainder of the day. Breezy, with a south wind 10 to 15 mph becoming west 20 to 25 mph in the afternoon. Winds could gust as high as 38 mph. Chance of precipitation is 80%.
Sunday Night
A chance of rain, possibly mixing with snow after 9pm, then gradually ending. Cloudy during the early evening, then gradual clearing, with a low around 19. Blustery, with a west wind 24 to 28 mph, with gusts as high as 40 mph. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 28. Breezy, with a northwest wind 18 to 24 mph, with gusts as high as 36 mph.
Monday Night
Mostly clear, with a low around 17. Northwest wind 11 to 17 mph, with gusts as high as 25 mph.
Tuesday
Sunny, with a high near 33.
Tuesday Night
Mostly clear, with a low around 26.
Wednesday
Mostly sunny, with a high near 43.
Wednesday Night
Partly cloudy, with a low around 27.
New Year's Day
Mostly sunny, with a high near 39.
Thursday Night
Partly cloudy, with a low around 19.
Friday
Partly sunny, with a high near 41.
Friday Night
Mostly cloudy, with a low around 29.
Saturday
Mostly cloudy, with a high near 47.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
5 Miles N O'Fallon IL
38.66°N 89.92°W (Elev. 551 ft)
38.66°N 89.92°W (Elev. 551 ft)
3:16 pm CST Dec 27, 2025
4pm CST Dec 27, 2025-6pm CST Jan 3, 2026
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