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Fire Weather Issues; Pacific System Moving Inland

Dry fuels, strong winds and dry weather will continue to bring elevated to critical fire weather conditions to the areas of the Plains, Midwest and Southeast today. A Pacific storm system will bring low elevation rain and heavy high elevation mountain snow to California through early week, expanding into the Pacific Northwest, Great Basin, and southern California on Tuesday. Read More >

Hazardous Weather Conditions

Current conditions at

Harlan, Harlan Municipal Airport (KHNR)

Lat: 41.58°NLon: 95.34°WElev: 1230ft.

Fair

34°F

1°C

Humidity 60%
Wind Speed E 3 mph
Barometer 30.23 in
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Last update 20 Apr 6:55 am CDT
Extended Forecast for

Portsmouth IA

  • Today

    Today: Sunny, with a high near 71. Breezy, with a south southeast wind 9 to 18 mph, with gusts as high as 26 mph.

    High: 71 °F

    Sunny then
    Sunny and
    Breezy

  • Tonight

    Tonight: Partly cloudy, with a low around 52. South southwest wind 13 to 16 mph, with gusts as high as 24 mph.

    Low: 52 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 84. South southwest wind 6 to 10 mph becoming west in the afternoon. Winds could gust as high as 16 mph.

    High: 84 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 54. East southeast wind 3 to 8 mph.

    Low: 54 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 80. Breezy, with a south wind 9 to 14 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 80 °F

    Mostly Sunny
    then Sunny
    and Breezy

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 59. Breezy, with a south wind 20 to 23 mph, with gusts as high as 33 mph.

    Low: 59 °F

    Breezy.
    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Thursday

    Thursday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 77. Breezy, with a south wind around 22 mph, with gusts as high as 32 mph. Chance of precipitation is 70%.

    High: 77 °F

    Showers
    Likely and
    Breezy

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 43. South wind 15 to 17 mph becoming northwest after midnight. Winds could gust as high as 24 mph.

    Low: 43 °F

    Chance
    Showers

  • Friday

    Friday: Mostly sunny, with a high near 61. North northwest wind around 16 mph, with gusts as high as 23 mph.

    High: 61 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 71. Breezy, with a south southeast wind 9 to 18 mph, with gusts as high as 26 mph.
Tonight
Partly cloudy, with a low around 52. South southwest wind 13 to 16 mph, with gusts as high as 24 mph.
Tuesday
Sunny, with a high near 84. South southwest wind 6 to 10 mph becoming west in the afternoon. Winds could gust as high as 16 mph.
Tuesday Night
Mostly clear, with a low around 54. East southeast wind 3 to 8 mph.
Wednesday
Sunny, with a high near 80. Breezy, with a south wind 9 to 14 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 30 mph.
Wednesday Night
A 20 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 59. Breezy, with a south wind 20 to 23 mph, with gusts as high as 33 mph.
Thursday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 77. Breezy, with a south wind around 22 mph, with gusts as high as 32 mph. Chance of precipitation is 70%.
Thursday Night
A chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 43. South wind 15 to 17 mph becoming northwest after midnight. Winds could gust as high as 24 mph.
Friday
Mostly sunny, with a high near 61. North northwest wind around 16 mph, with gusts as high as 23 mph.
Friday Night
Partly cloudy, with a low around 38. North wind 7 to 11 mph, with gusts as high as 17 mph.
Saturday
A slight chance of showers. Partly sunny, with a high near 58. North wind 7 to 13 mph, with gusts as high as 18 mph.
Saturday Night
A slight chance of showers. Partly cloudy, with a low around 38. Northeast wind 6 to 9 mph.
Sunday
A chance of showers. Partly sunny, with a high near 57. Northeast wind 6 to 11 mph, with gusts as high as 18 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Portsmouth IA
 41.65°N 95.5°W (Elev. 1319 ft)
Last Update:
7:06 am CDT Apr 20, 2026
Forecast Valid:
7am CDT Apr 20, 2026-6pm CDT Apr 26, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation