National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

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 60%
Wind Speed W 17 G 28 mph
Barometer 29.79 in (1008.4 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 18 Jun 2:54 pm CDT
Extended Forecast for

Hardin IL

  • This Afternoon

    This Afternoon: A 30 percent chance of showers and thunderstorms, mainly before 4pm. Mostly sunny, with a high near 82. West wind around 11 mph, with gusts as high as 30 mph.

    High: 82 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms, mainly before 11pm. Partly cloudy, with a low around 66. West wind 5 to 9 mph.

    Low: 66 °F

    Chance
    T-storms

  • Juneteenth

    Juneteenth: Sunny, with a high near 84. Northwest wind around 6 mph.

    High: 84 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 66. Light and variable wind.

    Low: 66 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 90. Light south wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 90 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 75.

    Low: 75 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 94.

    High: 94 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 75.

    Low: 75 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 94.

    High: 94 °F

    Sunny

Detailed Forecast

This Afternoon
A 30 percent chance of showers and thunderstorms, mainly before 4pm. Mostly sunny, with a high near 82. West wind around 11 mph, with gusts as high as 30 mph.
Tonight
A 40 percent chance of showers and thunderstorms, mainly before 11pm. Partly cloudy, with a low around 66. West wind 5 to 9 mph.
Juneteenth
Sunny, with a high near 84. Northwest wind around 6 mph.
Thursday Night
Mostly clear, with a low around 66. Light and variable wind.
Friday
Sunny, with a high near 90. Light south wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Friday Night
Clear, with a low around 75.
Saturday
Sunny, with a high near 94.
Saturday Night
Clear, with a low around 75.
Sunday
Sunny, with a high near 94.
Sunday Night
Clear, with a low around 76.
Monday
Sunny, with a high near 94.
Monday Night
Mostly clear, with a low around 75.
Tuesday
Sunny, with a high near 93.
Tuesday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74.
Wednesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Hardin IL
 39.16°N 90.61°W (Elev. 427 ft)
Last Update:
2:06 pm CDT Jun 18, 2025
Forecast Valid:
3pm CDT Jun 18, 2025-6pm CDT Jun 25, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation