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Hazardous Weather Conditions
Current conditions at
St. Charles, St. Charles County Smartt Airport (KSET)
Lat: 38.93°NLon: 90.43°WElev: 436ft.
A Few Clouds and Breezy
81°F
27°C
| Humidity | 61% |
| Wind Speed | S 21 G 29 mph |
| Barometer | 29.50 in (998.5 mb) |
| Dewpoint | 66°F (19°C) |
| Visibility | 10.00 mi |
| Heat Index | 83°F (28°C) |
| Last update | 17 Jun 9:54 am CDT |
Extended Forecast for
4 Miles ENE Jerseyville IL
Tornado Watch until June 17, 03:00pm
Wind Advisory June 17, 01:00pm until June 17, 08:00pm
NOW until 3:00pm Wed
Tornado Watch
Today
High: 90 °F
Severe
Thunderstorms
and BreezyTonight
Low: 64 °F
T-storms
Likely and
Breezy then
Partly CloudyThursday
High: 77 °F
Mostly Sunny
then Slight
Chance
ShowersThursday Night
Low: 57 °F
Decreasing
CloudsJuneteenth
High: 81 °F
Sunny
Friday Night
Low: 61 °F
Mostly Clear
Saturday
High: 85 °F
Mostly Sunny
Saturday Night
Low: 65 °F
Slight Chance
T-storms then
Chance
T-storms
Detailed Forecast
Today
Showers and thunderstorms likely, mainly before 3pm. Some of the storms could be severe. Partly sunny, with a high near 90. Breezy, with a south wind 17 to 22 mph increasing to 23 to 28 mph in the afternoon. Winds could gust as high as 46 mph. Chance of precipitation is 60%.
Tonight
Showers and thunderstorms likely, mainly before 11pm. Mostly cloudy, with a low around 64. Breezy, with a west wind 18 to 23 mph decreasing to 9 to 14 mph after midnight. Winds could gust as high as 37 mph. Chance of precipitation is 70%.
Thursday
A 20 percent chance of showers after 2pm. Increasing clouds, with a high near 77. Northwest wind 8 to 10 mph.
Thursday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 57. Northwest wind around 6 mph becoming calm in the evening.
Juneteenth
Sunny, with a high near 81. Calm wind becoming northwest around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 61.
Saturday
Mostly sunny, with a high near 85.
Saturday Night
A 50 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 65.
Sunday
Showers and possibly a thunderstorm. High near 83. Chance of precipitation is 80%.
Sunday Night
Showers and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Low around 64. Chance of precipitation is 80%.
Monday
A 20 percent chance of showers. Partly sunny, with a high near 79.
Monday Night
Partly cloudy, with a low around 59.
Tuesday
A 20 percent chance of showers. Mostly sunny, with a high near 80.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
4 Miles ENE Jerseyville IL
39.13°N 90.27°W (Elev. 558 ft)
39.13°N 90.27°W (Elev. 558 ft)
9:41 am CDT Jun 17, 2026
10am CDT Jun 17, 2026-6pm CDT Jun 23, 2026
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