Marine and Coastal Impacts from Imelda; Unsettled Weather in the West

Swells and high surf from both Imelda and Humberto are expected to bring dangerous marine conditions and rip currents to much of the East Coast over the next several days. A series of Pacific frontal systems will bring waves of showers and thunderstorms to portions of northern California and the Pacific Northwest through midweek. Read More >

Current conditions at

Harlan, Harlan Municipal Airport (KHNR)

Lat: 41.58°NLon: 95.34°WElev: 1230ft.

Fair

55°F

13°C

Humidity 94%
Wind Speed Calm
Barometer 30.17 in
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 30 Sep 7:35 am CDT
Extended Forecast for

Portsmouth IA

  • Today

    Today: Mostly cloudy, with a high near 82. Light south southeast wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 16 mph.

    High: 82 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 60. South wind around 5 mph becoming calm  in the evening.

    Low: 60 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 84. Light southeast wind becoming south 8 to 13 mph in the morning. Winds could gust as high as 18 mph.

    High: 84 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 59. South southeast wind around 6 mph.

    Low: 59 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 86. South wind 5 to 13 mph, with gusts as high as 20 mph.

    High: 86 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 63. South wind around 7 mph.

    Low: 63 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 88. South wind 8 to 15 mph, with gusts as high as 23 mph.

    High: 88 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 66. South wind around 11 mph, with gusts as high as 20 mph.

    Low: 66 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 86. South wind 10 to 16 mph, with gusts as high as 24 mph.

    High: 86 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly cloudy, with a high near 82. Light south southeast wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 16 mph.
Tonight
Mostly cloudy, with a low around 60. South wind around 5 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 84. Light southeast wind becoming south 8 to 13 mph in the morning. Winds could gust as high as 18 mph.
Wednesday Night
Mostly clear, with a low around 59. South southeast wind around 6 mph.
Thursday
Sunny, with a high near 86. South wind 5 to 13 mph, with gusts as high as 20 mph.
Thursday Night
Clear, with a low around 63. South wind around 7 mph.
Friday
Sunny, with a high near 88. South wind 8 to 15 mph, with gusts as high as 23 mph.
Friday Night
Mostly clear, with a low around 66. South wind around 11 mph, with gusts as high as 20 mph.
Saturday
Mostly sunny, with a high near 86. South wind 10 to 16 mph, with gusts as high as 24 mph.
Saturday Night
A chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 63. South wind 11 to 13 mph, with gusts as high as 21 mph.
Sunday
A chance of showers and thunderstorms. Mostly sunny, with a high near 81. South southwest wind 13 to 15 mph, with gusts as high as 24 mph.
Sunday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 55. South southwest wind 7 to 10 mph becoming north after midnight. Winds could gust as high as 16 mph.
Monday
A slight chance of showers. Mostly sunny, with a high near 72. North northeast wind 7 to 11 mph becoming southeast 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 95.53°W (Elev. 1250 ft)
7:35 am CDT Sep 30, 2025
7am CDT Sep 30, 2025-6pm CDT Oct 6, 2025
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database