Strong Storms and Heavy Rainfall Threats; Dangerous Heat for Southern Plains into the Southwest

Thunderstorms, some severe, will impact areas of the Plains into the Midwest today. Rainfall can be locally heavy as well from these storms with isolated instances of flash flooding. Monsoonal flow will enhance rainfall across the Four Corners into the central Rockies today. Meanwhile, summer heat continues for the southern Plains, Southwest into southern California. Read More >

Current conditions at

St. Charles, St. Charles County Smartt Airport (KSET)

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Mostly Cloudy

70°F

21°C

Humidity 76%
Wind Speed E 9 mph
Barometer 30.09 in (1018.5 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 25 Aug 8:54 am CDT
Extended Forecast for

Hardin IL

  • Today

    Today: Mostly sunny, with a high near 84. Southeast wind around 5 mph becoming calm  in the afternoon.

    High: 84 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 67. Calm wind.

    Low: 67 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Isolated showers and thunderstorms after 4pm.  Mostly sunny, with a high near 88. Calm wind becoming west around 6 mph in the afternoon.  Chance of precipitation is 20%.

    High: 88 °F

    Mostly Sunny
    then Isolated
    T-storms

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 65. Light north wind.

    Low: 65 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 84. Calm wind becoming north around 6 mph in the afternoon.

    High: 84 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 63.

    Low: 63 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 63.

    Low: 63 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 86.

    High: 86 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 84. Southeast wind around 5 mph becoming calm in the afternoon.
Tonight
Partly cloudy, with a low around 67. Calm wind.
Wednesday
Isolated showers and thunderstorms after 4pm. Mostly sunny, with a high near 88. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 20%.
Wednesday Night
Partly cloudy, with a low around 65. Light north wind.
Thursday
Sunny, with a high near 84. Calm wind becoming north around 6 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 63.
Friday
Sunny, with a high near 84.
Friday Night
Mostly clear, with a low around 63.
Saturday
Mostly sunny, with a high near 86.
Saturday Night
Partly cloudy, with a low around 68.
Sunday
Mostly sunny, with a high near 91.
Sunday Night
Mostly clear, with a low around 73.
Monday
Mostly sunny, with a high near 92.
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ABOUT THIS FORECAST

 
Point Forecast:
Hardin IL
 39.16°N 90.64°W (Elev. 692 ft)
6:01 am CDT Aug 25, 2026
9am CDT Aug 25, 2026-6pm CDT Aug 31, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database