Thunderstorms and Heavy Rains in the Appalachians

Multiple rounds of moderate to locally heavy rain will impact portions of the Appalachians and Mid-Atlantic, which may lead to flash flooding concerns. Thunderstorms with isolated severe wind gusts will be possible this afternoon from parts of the Southeast into the southern and central Appalachians. A multi-day heavy rain will pose a flash flood threat in New Mexico beginning Tuesday. Read More >

Current conditions at

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

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Fog/Mist

68°F

20°C

Humidity 93%
Wind Speed N 7 mph
Barometer 29.96 in (1014.0 mb)
Dewpoint 66°F (19°C)
Visibility 5.00 mi
Last update 21 Sep 5:54 am CDT
Extended Forecast for

Hardin ILSimilar City Names

  • Today

    Today: A chance of showers and thunderstorms before 8am, then a slight chance of showers between 8am and 9am.  Patchy fog before 11am.  Otherwise, cloudy, with a high near 72. Northeast wind 5 to 7 mph.  Chance of precipitation is 40%.

    High: 72 °F

    Chance
    Showers and
    Patchy Fog
    then Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 59. Northeast wind 5 to 7 mph.

    Low: 59 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 72. Northeast wind 6 to 9 mph.

    High: 72 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 53. North wind 3 to 8 mph.

    Low: 53 °F

    Decreasing
    Clouds

  • Wednesday

    Wednesday: Mostly sunny, with a high near 74. Northeast wind 5 to 8 mph.

    High: 74 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 54.

    Low: 54 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 75.

    High: 75 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 55.

    Low: 55 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 76.

    High: 76 °F

    Partly Sunny

Detailed Forecast

Today
A chance of showers and thunderstorms before 8am, then a slight chance of showers between 8am and 9am. Patchy fog before 11am. Otherwise, cloudy, with a high near 72. Northeast wind 5 to 7 mph. Chance of precipitation is 40%.
Tonight
Mostly cloudy, with a low around 59. Northeast wind 5 to 7 mph.
Tuesday
Mostly cloudy, with a high near 72. Northeast wind 6 to 9 mph.
Tuesday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 53. North wind 3 to 8 mph.
Wednesday
Mostly sunny, with a high near 74. Northeast wind 5 to 8 mph.
Wednesday Night
Partly cloudy, with a low around 54.
Thursday
Mostly sunny, with a high near 75.
Thursday Night
Mostly cloudy, with a low around 55.
Friday
Partly sunny, with a high near 76.
Friday Night
Mostly cloudy, with a low around 56.
Saturday
A 20 percent chance of showers. Partly sunny, with a high near 75.
Saturday Night
Mostly cloudy, with a low around 56.
Sunday
Mostly sunny, with a high near 81.
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ABOUT THIS FORECAST

 
Point Forecast:
Hardin ILSimilar City Names
 39.14°N 90.61°W (Elev. 427 ft)
5:46 am CDT Sep 21, 2026
6am CDT Sep 21, 2026-6pm CDT Sep 27, 2026
 
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