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.

Fair

68°F

20°C

Humidity 73%
Wind Speed Calm
Barometer 30.00 in
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 19 Jun 8:55 am CDT
Extended Forecast for

6 Miles W Portsmouth IA

  • Juneteenth

    Juneteenth: A slight chance of showers before 1pm, then a slight chance of showers and thunderstorms between 1pm and 2pm. Partly sunny, with a high near 80. Calm wind becoming west southwest 5 to 9 mph in the afternoon. Winds could gust as high as 16 mph. Chance of precipitation is 20%.

    High: 80 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Tonight

    Tonight: A 20 percent chance of showers before 11pm. Mostly cloudy, with a low around 58. North northeast wind around 6 mph becoming calm in the evening.

    Low: 58 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Saturday

    Saturday: Increasing clouds, with a high near 80. Calm wind becoming east southeast around 6 mph in the morning.

    High: 80 °F

    Increasing
    Clouds

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 61. East wind 7 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

    Low: 61 °F

    Showers
    Likely then
    Heavy Rain

  • Sunday

    Sunday: Showers and possibly a thunderstorm before 10am, then showers between 10am and 1pm, then a chance of showers and thunderstorms after 1pm. High near 71. East northeast wind around 17 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 71 °F

    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 54. Northeast wind 7 to 15 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.

    Low: 54 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Monday

    Monday: Mostly sunny, with a high near 73. Northeast wind around 7 mph.

    High: 73 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 55. Light and variable wind.

    Low: 55 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A slight chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 76. Light and variable wind becoming west southwest 5 to 9 mph in the morning.

    High: 76 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

Detailed Forecast

Juneteenth
A slight chance of showers before 1pm, then a slight chance of showers and thunderstorms between 1pm and 2pm. Partly sunny, with a high near 80. Calm wind becoming west southwest 5 to 9 mph in the afternoon. Winds could gust as high as 16 mph. Chance of precipitation is 20%.
Tonight
A 20 percent chance of showers before 11pm. Mostly cloudy, with a low around 58. North northeast wind around 6 mph becoming calm in the evening.
Saturday
Increasing clouds, with a high near 80. Calm wind becoming east southeast around 6 mph in the morning.
Saturday Night
Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 61. East wind 7 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Sunday
Showers and possibly a thunderstorm before 10am, then showers between 10am and 1pm, then a chance of showers and thunderstorms after 1pm. High near 71. East northeast wind around 17 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters 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 54. Northeast wind 7 to 15 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.
Monday
Mostly sunny, with a high near 73. Northeast wind around 7 mph.
Monday Night
Partly cloudy, with a low around 55. Light and variable wind.
Tuesday
A slight chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 76. Light and variable wind becoming west southwest 5 to 9 mph in the morning.
Tuesday Night
Partly cloudy, with a low around 56. West southwest wind 3 to 7 mph.
Wednesday
Sunny, with a high near 78. West northwest wind 3 to 8 mph.
Wednesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 57. West northwest wind around 5 mph becoming calm in the evening.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 78. Calm wind becoming east southeast around 6 mph in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles W Portsmouth IA
 41.65°N 95.61°W (Elev. 1306 ft)
Last Update:
7:36 am CDT Jun 19, 2026
Forecast Valid:
9am CDT Jun 19, 2026-6pm CDT Jun 25, 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