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

Hazardous Weather Conditions

Current conditions at

Harlan, Harlan Municipal Airport (KHNR)

Lat: 41.58°NLon: 95.34°WElev: 1230ft.

Fair with Haze and Windy

41°F

5°C

Humidity 28%
Wind Speed NW 43 G 55 mph
Barometer 29.93 in
Dewpoint 10°F (-12°C)
Visibility 6.00 mi
Wind Chill28°F (-2°C)
Last update 21 Jan 2:15 pm CST
Extended Forecast for

Portsmouth IA

High Wind Warning January 21, 02:27pm until January 21, 06:00pm
Click here for hazard details and duration
High Wind Warning
  •  
    High Wind Warning January 21, 02:27pm until January 21, 06:00pm

    NOW until 6:00pm Wed

    High Wind Warning

  • This Afternoon

    High: 40 °F

    Slight Chance
    Sprinkles/Snow
    and Windy

  • Tonight

    Tonight: Increasing clouds, with a low around 12. Blustery, with a northwest wind 19 to 24 mph becoming west 5 to 10 mph after midnight. Winds could gust as high as 34 mph.

    Low: 12 °F

    Mostly Clear
    and Blustery
    then Partly
    Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 28. West southwest wind 5 to 15 mph becoming north northwest in the afternoon. Winds could gust as high as 22 mph.

    High: 28 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around -9. Wind chill values as low as -26. North wind around 14 mph, with gusts as high as 21 mph.

    Low: -9 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny and cold, with a high near 0. North wind 8 to 13 mph, with gusts as high as 20 mph.

    High: 0 °F

    Cold

  • Friday Night

    Friday Night: A 40 percent chance of snow, mainly after midnight. Cloudy, with a low around -7. Northeast wind around 7 mph.

    Low: -7 °F

    Chance Snow

  • Saturday

    Saturday: A 40 percent chance of snow. Mostly cloudy and cold, with a high near 3. East wind 5 to 7 mph.

    High: 3 °F

    Chance Snow

  • Saturday Night

    Saturday Night: A slight chance of snow before midnight. Mostly cloudy, with a low around -5. East wind around 5 mph becoming light and variable in the evening.

    Low: -5 °F

    Slight Chance
    Snow then
    Mostly Cloudy

Detailed Forecast

This Afternoon
A chance of sprinkles before 3pm, then a slight chance of snow between 3pm and 4pm. Mostly sunny, with a high near 40. Windy, with a northwest wind 30 to 34 mph, with gusts as high as 55 mph. Chance of precipitation is 20%.
Tonight
Increasing clouds, with a low around 12. Blustery, with a northwest wind 19 to 24 mph becoming west 5 to 10 mph after midnight. Winds could gust as high as 34 mph.
Thursday
Partly sunny, with a high near 28. West southwest wind 5 to 15 mph becoming north northwest in the afternoon. Winds could gust as high as 22 mph.
Thursday Night
Mostly cloudy, with a low around -9. Wind chill values as low as -26. North wind around 14 mph, with gusts as high as 21 mph.
Friday
Partly sunny and cold, with a high near 0. North wind 8 to 13 mph, with gusts as high as 20 mph.
Friday Night
A 40 percent chance of snow, mainly after midnight. Cloudy, with a low around -7. Northeast wind around 7 mph.
Saturday
A 40 percent chance of snow. Mostly cloudy and cold, with a high near 3. East wind 5 to 7 mph.
Saturday Night
A slight chance of snow before midnight. Mostly cloudy, with a low around -5. East wind around 5 mph becoming light and variable in the evening.
Sunday
Partly sunny, with a high near 11. Light west wind becoming north northwest 5 to 9 mph in the morning.
Sunday Night
Mostly clear, with a low around -8. North northwest wind around 7 mph.
Monday
Sunny, with a high near 17. West northwest wind 6 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 16 mph.
Monday Night
Mostly clear, with a low around 5. Southwest wind around 7 mph.
Tuesday
Mostly sunny, with a high near 30. South southwest wind 6 to 9 mph becoming west northwest in the afternoon.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Portsmouth IA
 41.65°N 95.5°W (Elev. 1319 ft)
Last Update:
2:17 pm CST Jan 21, 2026
Forecast Valid:
2pm CST Jan 21, 2026-6pm CST Jan 27, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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