Current conditions at
St. Charles, St. Charles County Smartt Airport (KSET)
Lat: 38.93°NLon: 90.43°WElev: 436ft.
Fair
54°F
12°C
| Humidity | 87% |
| Wind Speed | E 5 mph |
| Barometer | 29.95 in (1013.8 mb) |
| Dewpoint | 50°F (10°C) |
| Visibility | 10.00 mi |
| Wind Chill | 53°F (12°C) |
| Last update | 12 Oct 4:54 am CDT |
Extended Forecast for
Jerseyville IL
Today
High: 80 °F
Sunny
Tonight
Low: 55 °F
Mostly Clear
Columbus Day
High: 79 °F
Mostly Sunny
Monday Night
Low: 59 °F
Partly Cloudy
Tuesday
High: 79 °F
Mostly Sunny
Tuesday Night
Low: 58 °F
Partly Cloudy
Wednesday
High: 76 °F
Mostly Sunny
Wednesday Night
Low: 54 °F
Mostly Clear
Thursday
High: 76 °F
Sunny
Detailed Forecast
Today
Sunny, with a high near 80. South wind 6 to 10 mph.
Tonight
Mostly clear, with a low around 55. Southeast wind 6 to 8 mph.
Columbus Day
Mostly sunny, with a high near 79. South wind 3 to 6 mph.
Monday Night
Partly cloudy, with a low around 59. Calm wind.
Tuesday
Mostly sunny, with a high near 79. Calm wind becoming north around 6 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 58.
Wednesday
Mostly sunny, with a high near 76.
Wednesday Night
Mostly clear, with a low around 54.
Thursday
Sunny, with a high near 76.
Thursday Night
Partly cloudy, with a low around 55.
Friday
Mostly sunny, with a high near 81.
Friday Night
A 20 percent chance of showers. Partly cloudy, with a low around 58.
Saturday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 77.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Jerseyville IL
39.11°N 90.32°W (Elev. 630 ft)
39.11°N 90.32°W (Elev. 630 ft)
5:06 am CDT Oct 12, 2025
5am CDT Oct 12, 2025-6pm CDT Oct 18, 2025
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