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 | SE 5 mph |
| Barometer | 29.94 in |
| Dewpoint | 55°F (13°C) |
| Visibility | 10.00 mi |
| Last update | 30 Sep 7:50 am CDT |
Extended Forecast for
Gillespie IL
Today
High: 89 °F
Partly Sunny
Tonight
Low: 69 °F
Mostly Cloudy
Thursday
High: 85 °F
Chance
Showers then
Showers
LikelyThursday Night
Low: 62 °F
Showers
Friday
High: 70 °F
Chance
ShowersFriday Night
Low: 53 °F
Mostly Clear
Saturday
High: 70 °F
Sunny
Saturday Night
Low: 50 °F
Partly Cloudy
Sunday
High: 72 °F
Sunny
Detailed Forecast
Today
Partly sunny, with a high near 89. South wind 6 to 9 mph, with gusts as high as 20 mph.
Tonight
Mostly cloudy, with a low around 69. South wind 7 to 10 mph.
Thursday
A chance of showers, then showers likely and possibly a thunderstorm after 4pm. Mostly cloudy, with a high near 85. Southwest wind 11 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 60%.
Thursday Night
Showers and possibly a thunderstorm. Low around 62. Calm wind becoming north 5 to 7 mph after midnight. Chance of precipitation is 90%.
Friday
A 40 percent chance of showers before 1pm. Partly sunny, with a high near 70. North wind 10 to 13 mph.
Friday Night
Mostly clear, with a low around 53.
Saturday
Sunny, with a high near 70.
Saturday Night
Partly cloudy, with a low around 50.
Sunday
Sunny, with a high near 72.
Sunday Night
Mostly clear, with a low around 47.
Monday
Sunny, with a high near 67.
Monday Night
Clear, with a low around 43.
Tuesday
Sunny, with a high near 68.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Gillespie IL
39.12°N 89.81°W (Elev. 653 ft)
39.12°N 89.81°W (Elev. 653 ft)
5:31 am CDT Sep 30, 2026
7am CDT Sep 30, 2026-6pm CDT Oct 6, 2026
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