Current conditions at

Harlan, Harlan Municipal Airport (KHNR)

Lat: 41.58°NLon: 95.34°WElev: 1230ft.

Overcast

18°F

-8°C

Humidity 45%
Wind Speed W 6 mph
Barometer 30.34 in
Dewpoint 0°F (-18°C)
Visibility 10.00 mi
Wind Chill10°F (-12°C)
Last update 28 Jan 12:55 am CST
Extended Forecast for

Portsmouth IA

  • Overnight

    Overnight: Mostly cloudy, with a low around 8. Light west southwest wind.

    Low: 8 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 27. Calm wind becoming north northwest 5 to 7 mph in the afternoon.

    High: 27 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 9. East northeast wind 3 to 5 mph.

    Low: 9 °F

    Increasing
    Clouds

  • Thursday

    Thursday: A 20 percent chance of snow before noon.  Mostly cloudy, with a high near 19. North wind 3 to 6 mph.

    High: 19 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 0. North northeast wind 3 to 6 mph.

    Low: 0 °F

    Mostly Cloudy

  • Friday

    Friday: Sunny, with a high near 12. North northeast wind 6 to 10 mph, with gusts as high as 16 mph.

    High: 12 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around -4. North wind around 6 mph becoming calm  in the evening.

    Low: -4 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 19. Light and variable wind becoming south 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 8. South wind around 9 mph, with gusts as high as 16 mph.

    Low: 8 °F

    Chance Snow

Detailed Forecast

Overnight
Mostly cloudy, with a low around 8. Light west southwest wind.
Wednesday
Mostly sunny, with a high near 27. Calm wind becoming north northwest 5 to 7 mph in the afternoon.
Wednesday Night
Increasing clouds, with a low around 9. East northeast wind 3 to 5 mph.
Thursday
A 20 percent chance of snow before noon. Mostly cloudy, with a high near 19. North wind 3 to 6 mph.
Thursday Night
Mostly cloudy, with a low around 0. North northeast wind 3 to 6 mph.
Friday
Sunny, with a high near 12. North northeast wind 6 to 10 mph, with gusts as high as 16 mph.
Friday Night
Mostly clear, with a low around -4. North wind around 6 mph becoming calm in the evening.
Saturday
Mostly sunny, with a high near 19. Light and variable wind becoming south 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 8. South wind around 9 mph, with gusts as high as 16 mph.
Sunday
A chance of snow, mainly before noon. Mostly cloudy, with a high near 31. South southwest wind 8 to 11 mph becoming west in the afternoon. Winds could gust as high as 18 mph.
Sunday Night
Mostly cloudy, with a low around 15. West northwest wind 5 to 9 mph.
Monday
Mostly sunny, with a high near 32. West northwest wind 5 to 10 mph becoming light and variable in the afternoon.
Monday Night
Mostly cloudy, with a low around 14. Southeast wind around 7 mph.
Tuesday
A slight chance of snow. Partly sunny, with a high near 34. Southeast wind 6 to 11 mph, with gusts as high as 16 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Portsmouth IA
 41.65°N 95.53°W (Elev. 1250 ft)
12:35 am CST Jan 28, 2026
1am CST Jan 28, 2026-6pm CST Feb 3, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database