


Current conditions at
St. Louis Regional Airport (KALN)
Lat: 38.89°NLon: 90.03°WElev: 518ft.
Fair
61°F
16°C
Humidity | 77% |
Wind Speed | Calm |
Barometer | 30.20 in |
Dewpoint | 54°F (12°C) |
Visibility | 10.00 mi |
Last update | 1 Sep 12:15 am CDT |
Extended Forecast for
Gillespie IL
Overnight
Low: 54 °F
Partly Cloudy
Labor Day
High: 79 °F
Mostly Sunny
Monday Night
Low: 57 °F
Mostly Cloudy
Tuesday
High: 79 °F
Mostly Sunny
Tuesday Night
Low: 57 °F
Mostly Clear
Wednesday
High: 82 °F
Sunny
Wednesday Night
Low: 49 °F
Chance
ShowersThursday
High: 70 °F
Mostly Sunny
Thursday Night
Low: 49 °F
Mostly Clear
Detailed Forecast
Overnight
Partly cloudy, with a low around 54. Calm wind.
Labor Day
Mostly sunny, with a high near 79. East wind 3 to 5 mph.
Monday Night
Mostly cloudy, with a low around 57. Light northeast wind.
Tuesday
Mostly sunny, with a high near 79. Calm wind becoming northeast around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 57. Calm wind.
Wednesday
Sunny, with a high near 82.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 49. Chance of precipitation is 50%.
Thursday
Mostly sunny, with a high near 70.
Thursday Night
Mostly clear, with a low around 49.
Friday
Sunny, with a high near 76.
Friday Night
Mostly clear, with a low around 49.
Saturday
Sunny, with a high near 74.
Saturday Night
Mostly clear, with a low around 48.
Sunday
Sunny, with a high near 75.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Gillespie IL
39.12°N 89.81°W (Elev. 653 ft)
39.12°N 89.81°W (Elev. 653 ft)
9:46 pm CDT Aug 31, 2025
1am CDT Sep 1, 2025-6pm CDT Sep 7, 2025