Current conditions at
St. Louis Regional Airport (KALN)
Lat: 38.89°NLon: 90.03°WElev: 518ft.
Fair
55°F
13°C
| Humidity | 47% |
| Wind Speed | Vrbl 5 mph |
| Barometer | 30.53 in |
| Dewpoint | 36°F (2°C) |
| Visibility | 10.00 mi |
| Wind Chill | 54°F (12°C) |
| Last update | 17 Oct 1:50 pm CDT |
Extended Forecast for
4 Miles S Carlinville IL
This Afternoon
High: 59 °F
Sunny
Tonight
Low: 33 °F
Clear then
Areas FrostSunday
High: 68 °F
Frost then
SunnySunday Night
Low: 35 °F
Clear
Monday
High: 72 °F
Patchy Frost
then Mostly
SunnyMonday Night
Low: 37 °F
Mostly Clear
Tuesday
High: 75 °F
Sunny
Tuesday Night
Low: 40 °F
Partly Cloudy
Wednesday
High: 78 °F
Sunny
Detailed Forecast
This Afternoon
Sunny, with a high near 59. Calm wind.
Tonight
Areas of frost after 5am. Otherwise, clear, with a low around 33. Light and variable wind.
Sunday
Widespread frost, mainly between 7am and 8am. Otherwise, sunny, with a high near 68. South wind 3 to 7 mph.
Sunday Night
Clear, with a low around 35. Light southeast wind.
Monday
Patchy frost before 8am. Otherwise, sunny, with a high near 72. Calm wind.
Monday Night
Mostly clear, with a low around 37.
Tuesday
Sunny, with a high near 75.
Tuesday Night
Partly cloudy, with a low around 40.
Wednesday
Sunny, with a high near 78.
Wednesday Night
Mostly clear, with a low around 44.
Thursday
Sunny, with a high near 79.
Thursday Night
Mostly clear, with a low around 46.
Friday
Sunny, with a high near 79.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
4 Miles S Carlinville IL
39.21°N 89.89°W (Elev. 610 ft)
39.21°N 89.89°W (Elev. 610 ft)
1:51 pm CDT Oct 17, 2026
2pm CDT Oct 17, 2026-6pm CDT Oct 23, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
