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

39°F

4°C

Humidity 75%
Wind Speed N 6 mph
Barometer 30.17 in
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update 9 Apr 8:15 am CDT
Extended Forecast for

Portsmouth IA

  • Today

    Today: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2pm. High near 54. Northeast wind 6 to 10 mph becoming east southeast in the afternoon. Winds could gust as high as 16 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 54 °F

    Chance
    Showers then
    Showers

  • Tonight

    Tonight: Showers and possibly a thunderstorm before 1am, then a slight chance of showers between 1am and 3am. Low around 35. Northeast wind around 10 mph, with gusts as high as 18 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 35 °F

    Showers then
    Slight Chance
    Showers

  • Friday

    Friday: Mostly sunny, with a high near 57. Northeast wind around 10 mph, with gusts as high as 16 mph.

    High: 57 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 50 percent chance of showers and thunderstorms after 1am. Increasing clouds, with a low around 42. East wind 6 to 10 mph, with gusts as high as 16 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 42 °F

    Partly Cloudy
    then Chance
    Showers

  • Saturday

    Saturday: Showers and possibly a thunderstorm. High near 67. Breezy, with a south southeast wind 11 to 18 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 67 °F

    Showers and
    Breezy

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm. Cloudy, with a low around 59. Breezy, with a south wind 16 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 59 °F

    Showers
    Likely and
    Breezy

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 76. Breezy, with a south wind 18 to 23 mph, with gusts as high as 32 mph. Chance of precipitation is 70%.

    High: 76 °F

    Showers
    Likely and
    Breezy

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 58. South wind 11 to 15 mph, with gusts as high as 24 mph.

    Low: 58 °F

    Chance
    Showers

  • Monday

    Monday: A slight chance of showers after 1pm. Mostly sunny, with a high near 81. Breezy, with a south wind 11 to 16 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 31 mph.

    High: 81 °F

    Breezy.
    Partly Sunny
    then Slight
    Chance
    Showers

Detailed Forecast

Today
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2pm. High near 54. Northeast wind 6 to 10 mph becoming east southeast in the afternoon. Winds could gust as high as 16 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and possibly a thunderstorm before 1am, then a slight chance of showers between 1am and 3am. Low around 35. Northeast wind around 10 mph, with gusts as high as 18 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Friday
Mostly sunny, with a high near 57. Northeast wind around 10 mph, with gusts as high as 16 mph.
Friday Night
A 50 percent chance of showers and thunderstorms after 1am. Increasing clouds, with a low around 42. East wind 6 to 10 mph, with gusts as high as 16 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
Showers and possibly a thunderstorm. High near 67. Breezy, with a south southeast wind 11 to 18 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Showers likely and possibly a thunderstorm. Cloudy, with a low around 59. Breezy, with a south wind 16 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 76. Breezy, with a south wind 18 to 23 mph, with gusts as high as 32 mph. Chance of precipitation is 70%.
Sunday Night
A chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 58. South wind 11 to 15 mph, with gusts as high as 24 mph.
Monday
A slight chance of showers after 1pm. Mostly sunny, with a high near 81. Breezy, with a south wind 11 to 16 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 31 mph.
Monday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 54. South wind 8 to 15 mph, with gusts as high as 24 mph.
Tuesday
A chance of showers and thunderstorms. Partly sunny, with a high near 71. West southwest wind 7 to 17 mph, with gusts as high as 24 mph.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 41. North northwest wind 11 to 14 mph becoming east in the evening. Winds could gust as high as 21 mph.
Wednesday
A chance of showers. Partly sunny, with a high near 61. West wind 10 to 14 mph, with gusts as high as 20 mph.
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:
8:12 am CDT Apr 9, 2026
Forecast Valid:
8am CDT Apr 9, 2026-6pm CDT Apr 15, 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