Hazardous Weather Conditions
Current conditions at
St. Louis Regional Airport (KALN)
Lat: 38.89°NLon: 90.03°WElev: 518ft.
Mostly Cloudy
50°F
10°C
| Humidity | 79% |
| Wind Speed | NW 7 mph |
| Barometer | 30.45 in |
| Dewpoint | 43°F (6°C) |
| Visibility | 10.00 mi |
| Wind Chill | 47°F (8°C) |
| Last update | 17 Oct 12:15 am CDT |
Extended Forecast for
4 Miles SE Chesterfield IL
Frost Advisory October 17, 01:00am until October 17, 09:00am
Overnight
Low: 34 °F
Patchy Frost
Saturday
High: 61 °F
Patchy Frost
then SunnySaturday Night
Low: 33 °F
Clear then
Patchy FrostSunday
High: 67 °F
Areas Frost
then SunnySunday Night
Low: 35 °F
Clear
Monday
High: 73 °F
Sunny
Monday Night
Low: 37 °F
Partly Cloudy
Tuesday
High: 75 °F
Sunny
Tuesday Night
Low: 39 °F
Mostly Clear
Detailed Forecast
Overnight
Patchy frost after 4am. Otherwise, mostly clear, with a low around 34. North wind 6 to 8 mph.
Saturday
Patchy frost before 9am. Otherwise, sunny, with a high near 61. Light north wind.
Saturday Night
Patchy frost after 2am. Otherwise, clear, with a low around 33. Light and variable wind.
Sunday
Areas of frost before 9am. Otherwise, sunny, with a high near 67. South wind 3 to 7 mph.
Sunday Night
Clear, with a low around 35. Calm wind.
Monday
Sunny, with a high near 73.
Monday Night
Partly cloudy, with a low around 37.
Tuesday
Sunny, with a high near 75.
Tuesday Night
Mostly clear, with a low around 39.
Wednesday
Sunny, with a high near 78.
Wednesday Night
Clear, with a low around 42.
Thursday
Sunny, with a high near 80.
Thursday Night
Mostly clear, with a low around 46.
Friday
Mostly sunny, with a high near 81.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
4 Miles SE Chesterfield IL
39.21°N 90.01°W (Elev. 545 ft)
39.21°N 90.01°W (Elev. 545 ft)
12:26 am CDT Oct 17, 2026
12am CDT Oct 17, 2026-6pm CDT Oct 23, 2026
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