Current conditions at

Harlan, Harlan Municipal Airport (KHNR)

Lat: 41.58°NLon: 95.34°WElev: 1230ft.

Overcast

16°F

-9°C

Humidity 53%
Wind Speed S 5 mph
Barometer 30.29 in
Dewpoint 1°F (-17°C)
Visibility 10.00 mi
Wind Chill8°F (-13°C)
Last update 28 Jan 5:35 am CST
Extended Forecast for

Portsmouth IA

  • Today

    Today: Mostly sunny, with a high near 28. Calm wind becoming north northwest 5 to 7 mph in the afternoon.

    High: 28 °F

    Mostly Sunny

  • Tonight

    Tonight: A 20 percent chance of snow after 3am.  Increasing clouds, with a low around 9. Calm wind becoming east northeast around 5 mph after midnight.

    Low: 9 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Thursday

    Thursday: A 20 percent chance of snow before noon.  Mostly cloudy, with a high near 19. East northeast wind around 5 mph becoming calm  in the afternoon.

    High: 19 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 2. Calm wind becoming north northeast around 6 mph after midnight.

    Low: 2 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 12. North northeast wind 6 to 10 mph, with gusts as high as 17 mph.

    High: 12 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around -3. North wind 5 to 7 mph becoming calm  in the evening.

    Low: -3 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 19. Light and variable wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 16 mph.

    High: 19 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A chance of snow.  Mostly cloudy, with a low around 9. South wind around 9 mph, with gusts as high as 17 mph.

    Low: 9 °F

    Chance Snow

  • Sunday

    Sunday: A chance of snow before noon.  Mostly cloudy, with a high near 31. South southwest wind 8 to 10 mph, with gusts as high as 17 mph.

    High: 31 °F

    Chance Snow
    then Mostly
    Cloudy

Detailed Forecast

Today
Mostly sunny, with a high near 28. Calm wind becoming north northwest 5 to 7 mph in the afternoon.
Tonight
A 20 percent chance of snow after 3am. Increasing clouds, with a low around 9. Calm wind becoming east northeast around 5 mph after midnight.
Thursday
A 20 percent chance of snow before noon. Mostly cloudy, with a high near 19. East northeast wind around 5 mph becoming calm in the afternoon.
Thursday Night
Mostly cloudy, with a low around 2. Calm wind becoming north northeast around 6 mph after midnight.
Friday
Mostly sunny, with a high near 12. North northeast wind 6 to 10 mph, with gusts as high as 17 mph.
Friday Night
Mostly clear, with a low around -3. North wind 5 to 7 mph becoming calm in the evening.
Saturday
Mostly sunny, with a high near 19. Light and variable wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 16 mph.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 9. South wind around 9 mph, with gusts as high as 17 mph.
Sunday
A chance of snow before noon. Mostly cloudy, with a high near 31. South southwest wind 8 to 10 mph, with gusts as high as 17 mph.
Sunday Night
Mostly cloudy, with a low around 17. West southwest wind 5 to 7 mph becoming light and variable after midnight.
Monday
Partly sunny, with a high near 34. Light and variable wind becoming north 5 to 8 mph in the morning.
Monday Night
Mostly cloudy, with a low around 19. Southeast wind around 6 mph.
Tuesday
A slight chance of snow. Mostly cloudy, with a high near 34. Southeast wind 6 to 11 mph becoming east northeast in the afternoon. Winds could gust as high as 17 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Portsmouth IA
 41.65°N 95.5°W (Elev. 1319 ft)
3:35 am CST Jan 28, 2026
5am CST Jan 28, 2026-6pm CST Feb 3, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database