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Hazardous Weather Conditions

Current conditions at

Harlan, Harlan Municipal Airport (KHNR)

Lat: 41.58°NLon: 95.34°WElev: 1230ft.

Overcast and Windy

30°F

-1°C

Humidity 59%
Wind Speed NW 28 G 36 mph
Barometer 29.95 in
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Wind Chill15°F (-9°C)
Last update 18 Jan 3:55 pm CST
Extended Forecast for

Portsmouth IA

Wind Advisory January 18, 04:12pm until January 18, 07:00pm
Click here for hazard details and duration
Wind Advisory
  •  
    Wind Advisory January 18, 04:12pm until January 18, 07:00pm

    NOW until 7:00pm Sun

    Wind Advisory

  • This Afternoon

    High: 27 °F

    Chance
    Flurries and
    Blustery

  • Tonight

    Tonight: Mostly cloudy, with a low around 0. Wind chill values as low as -16. Windy, with a north northwest wind 24 to 29 mph decreasing to 15 to 20 mph after midnight. Winds could gust as high as 41 mph.

    Low: 0 °F

    Mostly Cloudy
    and Windy

  • M.L.King Day

    M.L.King Day: Increasing clouds, with a high near 16. Wind chill values as low as -18. West wind 7 to 14 mph, with gusts as high as 21 mph.

    High: 16 °F

    Increasing
    Clouds

  • Monday Night

    Monday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 4. West wind around 5 mph becoming light and variable.

    Low: 4 °F

    Decreasing
    Clouds

  • Tuesday

    Tuesday: Partly sunny, with a high near 28. Light and variable wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 16 mph.

    High: 28 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 16. South wind 6 to 9 mph becoming west northwest in the evening.

    Low: 16 °F

    Slight Chance
    Snow then
    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 32. West northwest wind 8 to 16 mph, with gusts as high as 25 mph.

    High: 32 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 9. West northwest wind 6 to 14 mph, with gusts as high as 21 mph.

    Low: 9 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
A chance of flurries before 5pm. Partly sunny, with a steady temperature around 27. Blustery, with a northwest wind 21 to 24 mph, with gusts as high as 43 mph.
Tonight
Mostly cloudy, with a low around 0. Wind chill values as low as -16. Windy, with a north northwest wind 24 to 29 mph decreasing to 15 to 20 mph after midnight. Winds could gust as high as 41 mph.
M.L.King Day
Increasing clouds, with a high near 16. Wind chill values as low as -18. West wind 7 to 14 mph, with gusts as high as 21 mph.
Monday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 4. West wind around 5 mph becoming light and variable.
Tuesday
Partly sunny, with a high near 28. Light and variable wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 16 mph.
Tuesday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 16. South wind 6 to 9 mph becoming west northwest in the evening.
Wednesday
Mostly sunny, with a high near 32. West northwest wind 8 to 16 mph, with gusts as high as 25 mph.
Wednesday Night
Partly cloudy, with a low around 9. West northwest wind 6 to 14 mph, with gusts as high as 21 mph.
Thursday
Mostly sunny, with a high near 29. West wind 6 to 10 mph becoming south southwest in the afternoon. Winds could gust as high as 17 mph.
Thursday Night
Mostly cloudy, with a low around 8. South wind 6 to 8 mph becoming north after midnight.
Friday
Partly sunny, with a high near 17. North northeast wind 8 to 11 mph, with gusts as high as 18 mph.
Friday Night
Mostly cloudy, with a low around -3. North northeast wind around 11 mph, with gusts as high as 17 mph.
Saturday
A slight chance of snow. Partly sunny and cold, with a high near 8. Northeast wind around 11 mph, with gusts as high as 18 mph.
Saturday Night
A slight chance of snow. Mostly cloudy, with a low around -5. Northeast wind 7 to 9 mph.
Sunday
Mostly sunny, with a high near 13. East northeast wind 7 to 9 mph becoming west in the morning.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Portsmouth IA
 41.65°N 95.5°W (Elev. 1319 ft)
Last Update:
3:57 pm CST Jan 18, 2026
Forecast Valid:
4pm CST Jan 18, 2026-6pm CST Jan 25, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation