Hazardous Weather Conditions
Current conditions at
St. Charles, St. Charles County Smartt Airport (KSET)
Lat: 38.93°NLon: 90.43°WElev: 436ft.
Fair
79°F
26°C
| Humidity | 77% |
| Wind Speed | Calm |
| Barometer | 29.98 in (1014.6 mb) |
| Dewpoint | 71°F (22°C) |
| Visibility | 10.00 mi |
| Heat Index | 82°F (28°C) |
| Last update | 17 Aug 8:54 pm CDT |
Extended Forecast for
5 Miles WSW Fidelity IL
Heat Advisory August 17, 09:17pm until August 18, 08:00pm
NOW until 8:00pm Mon
Heat Advisory
Tonight
Low: 76 °F
Partly Cloudy
Monday
High: 93 °F
Mostly Sunny
then Slight
Chance
T-stormsMonday Night
Low: 74 °F
Mostly Clear
then Slight
Chance
T-stormsTuesday
High: 90 °F
Chance
T-stormsTuesday Night
Low: 71 °F
Chance
T-storms then
Chance
ShowersWednesday
High: 83 °F
Slight Chance
T-stormsWednesday Night
Low: 64 °F
Partly Cloudy
Thursday
High: 82 °F
Mostly Sunny
Detailed Forecast
Tonight
Partly cloudy, with a low around 76. Southeast wind 3 to 5 mph.
Monday
A 20 percent chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 93. Heat index values as high as 101. South wind 5 to 7 mph.
Monday Night
A slight chance of showers and thunderstorms before 7pm, then a slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 74. South wind 3 to 5 mph. Chance of precipitation is 20%.
Tuesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90. Light and variable wind becoming west around 6 mph in the morning.
Tuesday Night
A chance of showers and thunderstorms before 1am, then a slight chance of showers. Partly cloudy, with a low around 71. North wind 3 to 5 mph. Chance of precipitation is 30%.
Wednesday
A slight chance of showers before 10am, then a slight chance of showers and thunderstorms between 10am and 1pm. Mostly sunny, with a high near 83. Chance of precipitation is 20%.
Wednesday Night
Partly cloudy, with a low around 64.
Thursday
Mostly sunny, with a high near 82.
Thursday Night
Mostly clear, with a low around 64.
Friday
Sunny, with a high near 85.
Friday Night
Mostly clear, with a low around 65.
Saturday
Sunny, with a high near 84.
Saturday Night
Mostly clear, with a low around 60.
Sunday
Sunny, with a high near 78.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
5 Miles WSW Fidelity IL
39.13°N 90.24°W (Elev. 600 ft)
39.13°N 90.24°W (Elev. 600 ft)
8:56 pm CDT Aug 17, 2025
9pm CDT Aug 17, 2025-6pm CDT Aug 24, 2025
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