Current conditions at
St. Charles, St. Charles County Smartt Airport (KSET)
Lat: 38.93°NLon: 90.43°WElev: 436ft.
Fair
66°F
19°C
| Humidity | 68% |
| Wind Speed | NE 3 mph |
| Barometer | 30.04 in (1017.1 mb) |
| Dewpoint | 55°F (13°C) |
| Visibility | 10.00 mi |
| Last update | 8 Oct 6:54 pm CDT |
Extended Forecast for
Jerseyville IL
Tonight
Low: 53 °F
Clear
Friday
High: 88 °F
Sunny
Friday Night
Low: 60 °F
Mostly Clear
Saturday
High: 84 °F
Increasing
CloudsSaturday Night
Low: 58 °F
Mostly Cloudy
then Slight
Chance RainSunday
High: 81 °F
Mostly Sunny
Sunday Night
Low: 59 °F
Mostly Clear
Columbus Day
High: 91 °F
Sunny
Monday Night
Low: 65 °F
Mostly Clear
Detailed Forecast
Tonight
Clear, with a low around 53. Calm wind becoming southeast around 5 mph after midnight.
Friday
Sunny, with a high near 88. South wind 6 to 10 mph.
Friday Night
Mostly clear, with a low around 60. South wind 6 to 9 mph.
Saturday
Increasing clouds, with a high near 84. South wind 6 to 10 mph.
Saturday Night
A 20 percent chance of rain after 1am. Mostly cloudy, with a low around 58. Southeast wind 5 to 9 mph.
Sunday
Mostly sunny, with a high near 81.
Sunday Night
Mostly clear, with a low around 59.
Columbus Day
Sunny, with a high near 91.
Monday Night
Mostly clear, with a low around 65.
Tuesday
Mostly sunny, with a high near 84.
Tuesday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 58.
Wednesday
A 20 percent chance of showers. Partly sunny, with a high near 80.
Wednesday Night
A 40 percent chance of showers. Partly cloudy, with a low around 60.
Thursday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 82.
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)
4:51 pm CDT Oct 8, 2026
7pm CDT Oct 8, 2026-6pm CDT Oct 15, 2026
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