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

Harlan, Harlan Municipal Airport (KHNR)

Lat: 41.58°NLon: 95.34°WElev: 1230ft.

Overcast

55°F

13°C

Humidity 72%
Wind Speed E 6 mph
Barometer 30.10 in
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Wind Chill54°F (12°C)
Last update 14 Oct 7:55 pm CDT
Extended Forecast for

Irwin IA

  • Tonight

    Tonight: A chance of showers, then showers and possibly a thunderstorm after 4am. Low around 48. East northeast wind 3 to 5 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 48 °F

    Mostly Cloudy
    then Showers

  • Thursday

    Thursday: Showers and possibly a thunderstorm before 2pm, then showers likely. High near 58. North wind 7 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 58 °F

    Showers

  • Thursday Night

    Thursday Night: A 30 percent chance of showers, mainly before 8pm. Cloudy during the evening, then partly cloudy overnight, with a low around 39. Breezy, with a northwest wind 14 to 18 mph, with gusts as high as 31 mph. New precipitation amounts of less than a tenth of an inch possible.

    Low: 39 °F

    Chance
    Showers and
    Breezy then
    Partly Cloudy

  • Friday

    Friday: Mostly cloudy, then gradually becoming sunny, with a high near 53. Breezy, with a northwest wind 15 to 23 mph, with gusts as high as 38 mph.

    High: 53 °F

    Decreasing
    Clouds and
    Breezy

  • Friday Night

    Friday Night: Widespread frost, mainly after 4am. Otherwise, mostly clear, with a low around 32. North wind 5 to 7 mph becoming calm in the evening.

    Low: 32 °F

    Mostly Clear
    then Frost

  • Saturday

    Saturday: Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 60. Light and variable wind becoming south southwest 6 to 11 mph in the morning. Winds could gust as high as 20 mph.

    High: 60 °F

    Frost then
    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 40. South wind 9 to 13 mph, with gusts as high as 22 mph.

    Low: 40 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 66. South wind around 15 mph, with gusts as high as 25 mph.

    High: 66 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 45. South wind 5 to 9 mph becoming light after midnight. Winds could gust as high as 17 mph.

    Low: 45 °F

    Partly Cloudy

Detailed Forecast

Tonight
A chance of showers, then showers and possibly a thunderstorm after 4am. Low around 48. East northeast wind 3 to 5 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
Showers and possibly a thunderstorm before 2pm, then showers likely. High near 58. North wind 7 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Thursday Night
A 30 percent chance of showers, mainly before 8pm. Cloudy during the evening, then partly cloudy overnight, with a low around 39. Breezy, with a northwest wind 14 to 18 mph, with gusts as high as 31 mph. New precipitation amounts of less than a tenth of an inch possible.
Friday
Mostly cloudy, then gradually becoming sunny, with a high near 53. Breezy, with a northwest wind 15 to 23 mph, with gusts as high as 38 mph.
Friday Night
Widespread frost, mainly after 4am. Otherwise, mostly clear, with a low around 32. North wind 5 to 7 mph becoming calm in the evening.
Saturday
Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 60. Light and variable wind becoming south southwest 6 to 11 mph in the morning. Winds could gust as high as 20 mph.
Saturday Night
Clear, with a low around 40. South wind 9 to 13 mph, with gusts as high as 22 mph.
Sunday
Sunny, with a high near 66. South wind around 15 mph, with gusts as high as 25 mph.
Sunday Night
Partly cloudy, with a low around 45. South wind 5 to 9 mph becoming light after midnight. Winds could gust as high as 17 mph.
Monday
Mostly sunny, with a high near 69. Calm wind becoming south around 6 mph in the morning.
Monday Night
Mostly clear, with a low around 46. Light south wind.
Tuesday
Sunny, with a high near 72. Light south wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 20 mph.
Tuesday Night
Mostly clear, with a low around 54. South wind 7 to 9 mph, with gusts as high as 17 mph.
Wednesday
A slight chance of showers. Mostly sunny, with a high near 74. South wind 9 to 14 mph, with gusts as high as 23 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Irwin IA
 41.79°N 95.21°W (Elev. 1247 ft)
Last Update:
7:36 pm CDT Oct 14, 2026
Forecast Valid:
8pm CDT Oct 14, 2026-6pm CDT Oct 21, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation