


Hazardous Weather Conditions
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 | 79% |
Wind Speed | Calm |
Barometer | 30.02 in (1016.1 mb) |
Dewpoint | 73°F (23°C) |
Visibility | 10.00 mi |
Heat Index | 84°F (29°C) |
Last update | 16 Aug 9:54 pm CDT |
Extended Forecast for
2 Miles ESE Hardin IL
Heat Advisory August 16, 10:13pm until August 18, 08:00pm
NOW until 8:00pm Mon
Heat Advisory
Tonight
Low: 75 °F
Partly Cloudy
Sunday
High: 96 °F
Sunny then
Slight Chance
T-stormsSunday Night
Low: 75 °F
Chance
T-storms then
Mostly ClearMonday
High: 96 °F
Sunny
Monday Night
Low: 76 °F
Mostly Clear
Tuesday
High: 93 °F
Slight Chance
T-stormsTuesday Night
Low: 71 °F
Chance
T-stormsWednesday
High: 82 °F
Slight Chance
Showers
Detailed Forecast
Tonight
Partly cloudy, with a low around 75. Calm wind.
Sunday
A 20 percent chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 96. Heat index values as high as 106. Light and variable wind.
Sunday Night
A 30 percent chance of showers and thunderstorms, mainly before 7pm. Mostly clear, with a low around 75. Calm wind.
Monday
Sunny, with a high near 96. Heat index values as high as 105. Calm wind becoming southwest around 5 mph in the afternoon.
Monday Night
Mostly clear, with a low around 76. Light and variable wind.
Tuesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.
Tuesday Night
A 30 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 71.
Wednesday
A 20 percent chance of showers. Partly sunny, with a high near 82.
Wednesday Night
Partly cloudy, with a low around 66.
Thursday
Mostly sunny, with a high near 83.
Thursday Night
Mostly clear, with a low around 65.
Friday
Sunny, with a high near 86.
Friday Night
Mostly clear, with a low around 66.
Saturday
Sunny, with a high near 88.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
2 Miles ESE Hardin IL
39.14°N 90.58°W (Elev. 430 ft)
39.14°N 90.58°W (Elev. 430 ft)
5:56 pm CDT Aug 16, 2025
10pm CDT Aug 16, 2025-6pm CDT Aug 23, 2025