Current conditions at
St. Louis Regional Airport (KALN)
Lat: 38.89°NLon: 90.03°WElev: 518ft.
Fair
64°F
18°C
| Humidity | 73% |
| Wind Speed | Vrbl 3 mph |
| Barometer | 30.05 in |
| Dewpoint | 55°F (13°C) |
| Visibility | 10.00 mi |
| Last update | 11 Oct 9:50 am CDT |
Extended Forecast for
Dorchester IL
Today
High: 87 °F
Sunny
Tonight
Low: 61 °F
Mostly Clear
Columbus Day
High: 92 °F
Sunny
Monday Night
Low: 68 °F
Clear
Tuesday
High: 93 °F
Sunny
Tuesday Night
Low: 66 °F
Chance
T-stormsWednesday
High: 81 °F
Showers
LikelyWednesday Night
Low: 59 °F
Showers
LikelyThursday
High: 76 °F
Showers
Detailed Forecast
Today
Sunny, with a high near 87. Light and variable wind.
Tonight
Mostly clear, with a low around 61. South wind 3 to 5 mph.
Columbus Day
Sunny, with a high near 92. Southwest wind 5 to 13 mph.
Monday Night
Clear, with a low around 68. Southwest wind around 8 mph.
Tuesday
Sunny, with a high near 93. West wind 7 to 10 mph.
Tuesday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 66.
Wednesday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 81. Chance of precipitation is 70%.
Wednesday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 59. Chance of precipitation is 60%.
Thursday
Showers and possibly a thunderstorm. High near 76. Chance of precipitation is 80%.
Thursday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 51.
Friday
Partly sunny, with a high near 66.
Friday Night
Partly cloudy, with a low around 40.
Saturday
Sunny, with a high near 60.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Dorchester IL
39.08°N 89.9°W (Elev. 659 ft)
39.08°N 89.9°W (Elev. 659 ft)
9:01 am CDT Oct 11, 2026
10am CDT Oct 11, 2026-6pm CDT Oct 17, 2026
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