Severe Weather and Heavy Rain from the Ohio Valley to the Mid-Atlantic; Heat Persists in the South-Central U.S.

Widespread strong thunderstorms with damaging winds and locally heavy rain are expected across portions of the Ohio Valley into southern Mid-Atlantic and Carolinas. Rounds of strong thunderstorms are expected to develop across the northern and central Plains. Sweltering heat remains most persistent across the South-Central Plains and Lower/Middle Mississippi Valley through next week. Read More >

Current conditions at

Harlan, Harlan Municipal Airport (KHNR)

Lat: 41.58°NLon: 95.34°WElev: 1230ft.

A Few Clouds

81°F

27°C

Humidity 79%
Wind Speed N 14 G 21 mph
Barometer 30.03 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 5 Sep 11:15 am CDT
Extended Forecast for

Irwin IA

Heat Advisory September 5, 11:22am until September 5, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory September 5, 11:22am until September 5, 07:00pm

    NOW until 7:00pm Sat

    Heat Advisory

  • Today

    High: 93 °F

    Gradual
    Clearing

  • Tonight

    Tonight: Partly cloudy, with a low around 69. East southeast wind 3 to 5 mph.

    Low: 69 °F

    Partly Cloudy

  • Sunday

    Sunday: A 40 percent chance of showers, mainly before 2pm.  Partly sunny, with a high near 87. Southeast wind 6 to 8 mph.  New precipitation amounts of less than a tenth of an inch possible.

    High: 87 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am.  Mostly cloudy, with a low around 67. Southeast wind around 8 mph, with gusts as high as 16 mph.  Chance of precipitation is 20%.

    Low: 67 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Labor Day

    Labor Day: Mostly sunny, with a high near 88. South southeast wind 9 to 14 mph, with gusts as high as 22 mph.

    High: 88 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 71. South southeast wind 13 to 15 mph, with gusts as high as 25 mph.

    Low: 71 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms after 1pm.  Mostly sunny, with a high near 93. South southwest wind around 14 mph, with gusts as high as 22 mph.

    High: 93 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am.  Partly cloudy, with a low around 64. West wind 5 to 7 mph becoming calm  in the evening.

    Low: 64 °F

    Showers
    Likely

Detailed Forecast

Today
Cloudy early, then gradual clearing, with a high near 93. East southeast wind around 6 mph.
Tonight
Partly cloudy, with a low around 69. East southeast wind 3 to 5 mph.
Sunday
A 40 percent chance of showers, mainly before 2pm. Partly sunny, with a high near 87. Southeast wind 6 to 8 mph. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Mostly cloudy, with a low around 67. Southeast wind around 8 mph, with gusts as high as 16 mph. Chance of precipitation is 20%.
Labor Day
Mostly sunny, with a high near 88. South southeast wind 9 to 14 mph, with gusts as high as 22 mph.
Monday Night
Partly cloudy, with a low around 71. South southeast wind 13 to 15 mph, with gusts as high as 25 mph.
Tuesday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 93. South southwest wind around 14 mph, with gusts as high as 22 mph.
Tuesday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 64. West wind 5 to 7 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 84. Calm wind becoming north northwest around 6 mph in the morning.
Wednesday Night
A slight chance of showers after 1am. Partly cloudy, with a low around 61. Light and variable wind.
Thursday
Mostly sunny, with a high near 84. Calm wind becoming south around 6 mph in the afternoon.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 62. Southeast wind 3 to 5 mph.
Friday
Mostly sunny, with a high near 86. South wind 5 to 10 mph, with gusts as high as 17 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Irwin IA
 41.79°N 95.21°W (Elev. 1247 ft)
10:35 am CDT Sep 5, 2026
11am CDT Sep 5, 2026-6pm CDT Sep 11, 2026
 
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Additional Resources

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