Current conditions at
St. Louis Regional Airport (KALN)
Lat: 38.89°NLon: 90.03°WElev: 518ft.
Fair
86°F
30°C
| Humidity | 35% |
| Wind Speed | SW 8 G 18 mph |
| Barometer | 29.88 in |
| Dewpoint | 55°F (13°C) |
| Visibility | 10.00 mi |
| Heat Index | 85°F (29°C) |
| Last update | 7 Oct 2:45 pm CDT |
Extended Forecast for
Carlinville IL
This Afternoon
High: 86 °F
Sunny
Tonight
Low: 55 °F
Clear
Thursday
High: 82 °F
Sunny
Thursday Night
Low: 56 °F
Mostly Clear
Friday
High: 87 °F
Sunny
Friday Night
Low: 61 °F
Clear
Saturday
High: 88 °F
Mostly Sunny
Saturday Night
Low: 56 °F
Chance Rain
Sunday
High: 78 °F
Partly Sunny
Detailed Forecast
This Afternoon
Sunny, with a high near 86. West wind 5 to 9 mph.
Tonight
Clear, with a low around 55. Northwest wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 82. Light north wind.
Thursday Night
Mostly clear, with a low around 56. Calm wind.
Friday
Sunny, with a high near 87. Light southeast wind becoming south 5 to 9 mph in the morning.
Friday Night
Clear, with a low around 61.
Saturday
Mostly sunny, with a high near 88.
Saturday Night
A 30 percent chance of rain, mainly before 1am. Mostly cloudy, with a low around 56.
Sunday
Partly sunny, with a high near 78.
Sunday Night
Partly cloudy, with a low around 57.
Columbus Day
Mostly sunny, with a high near 89.
Monday Night
Mostly clear, with a low around 54.
Tuesday
Mostly sunny, with a high near 72.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Carlinville IL
39.27°N 89.86°W (Elev. 623 ft)
39.27°N 89.86°W (Elev. 623 ft)
2:21 pm CDT Oct 7, 2026
2pm CDT Oct 7, 2026-6pm CDT Oct 13, 2026
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