Current conditions at
St. Charles, St. Charles County Smartt Airport (KSET)
Lat: 38.93°NLon: 90.43°WElev: 436ft.
Fair
80°F
27°C
| Humidity | 35% |
| Wind Speed | NW 9 mph |
| Barometer | 30.17 in (1021.5 mb) |
| Dewpoint | 50°F (10°C) |
| Visibility | 10.00 mi |
| Heat Index | 80°F (27°C) |
| Last update | 4 Oct 1:54 pm CDT |
Extended Forecast for
Jerseyville IL
This Afternoon
High: 79 °F
Sunny
Tonight
Low: 48 °F
Clear
Monday
High: 75 °F
Sunny
Monday Night
Low: 46 °F
Clear
Tuesday
High: 79 °F
Sunny
Tuesday Night
Low: 54 °F
Clear
Wednesday
High: 85 °F
Sunny
Wednesday Night
Low: 55 °F
Mostly Clear
Thursday
High: 83 °F
Sunny
Detailed Forecast
This Afternoon
Sunny, with a high near 79. North wind around 8 mph.
Tonight
Clear, with a low around 48. North wind 3 to 7 mph.
Monday
Sunny, with a high near 75. Northeast wind 3 to 6 mph.
Monday Night
Clear, with a low around 46. Light and variable wind.
Tuesday
Sunny, with a high near 79. South wind 3 to 8 mph.
Tuesday Night
Clear, with a low around 54.
Wednesday
Sunny, with a high near 85.
Wednesday Night
Mostly clear, with a low around 55.
Thursday
Sunny, with a high near 83.
Thursday Night
Mostly clear, with a low around 55.
Friday
Sunny, with a high near 83.
Friday Night
Mostly clear, with a low around 55.
Saturday
Sunny, with a high near 84.
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)
1:26 pm CDT Oct 4, 2026
2pm CDT Oct 4, 2026-6pm CDT Oct 10, 2026
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