Damaging Winds and Flooding on August 9, 2025

Detailed information on the damaging winds and flooding that occurred during the early morning hours of August 9th and 10th, 2025. Read More >

Hazardous Weather Conditions

Current conditions at

Harlan, Harlan Municipal Airport (KHNR)

Lat: 41.58°NLon: 95.34°WElev: 1230ft.

Fog/Mist

72°F

22°C

Humidity 94%
Wind Speed S 8 mph
Barometer 29.96 in
Dewpoint 70°F (21°C)
Visibility 6.00 mi
Last update 15 Aug 2:55 am CDT
Extended Forecast for

Portsmouth IA

  • Overnight

    Overnight: A 20 percent chance of showers and thunderstorms after 4am.  Mostly clear, with a low around 70. South wind around 10 mph, with gusts as high as 18 mph.

    Low: 70 °F

    Slight Chance
    T-storms

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms, mainly before 1pm.  Partly sunny, with a high near 88. South wind 10 to 13 mph, with gusts as high as 21 mph.  New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 88 °F

    Chance
    T-storms then
    Chance
    Showers

  • Friday Night

    Friday Night: Mostly clear, with a low around 72. South southeast wind around 10 mph, with gusts as high as 18 mph.

    Low: 72 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 94. South wind 8 to 13 mph, with gusts as high as 20 mph.

    High: 94 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 73. South wind 7 to 9 mph, with gusts as high as 16 mph.

    Low: 73 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 91. South wind 7 to 10 mph, with gusts as high as 17 mph.

    High: 91 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms, mainly after 1am.  Partly cloudy, with a low around 71. South wind 6 to 8 mph.

    Low: 71 °F

    Chance
    T-storms

  • Monday

    Monday: Mostly sunny, with a high near 90. South southwest wind 6 to 8 mph.

    High: 90 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A chance of showers and thunderstorms, mainly after 1am.  Partly cloudy, with a low around 68. South wind around 5 mph becoming calm  after midnight.

    Low: 68 °F

    Chance
    T-storms

Detailed Forecast

Overnight
A 20 percent chance of showers and thunderstorms after 4am. Mostly clear, with a low around 70. South wind around 10 mph, with gusts as high as 18 mph.
Friday
A 40 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 88. South wind 10 to 13 mph, with gusts as high as 21 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
Mostly clear, with a low around 72. South southeast wind around 10 mph, with gusts as high as 18 mph.
Saturday
Sunny, with a high near 94. South wind 8 to 13 mph, with gusts as high as 20 mph.
Saturday Night
Partly cloudy, with a low around 73. South wind 7 to 9 mph, with gusts as high as 16 mph.
Sunday
Mostly sunny, with a high near 91. South wind 7 to 10 mph, with gusts as high as 17 mph.
Sunday Night
A 30 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 71. South wind 6 to 8 mph.
Monday
Mostly sunny, with a high near 90. South southwest wind 6 to 8 mph.
Monday Night
A chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 68. South wind around 5 mph becoming calm after midnight.
Tuesday
Mostly sunny, with a high near 87. Calm wind becoming southwest around 6 mph in the morning.
Tuesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 64. North northeast wind 3 to 6 mph.
Wednesday
Mostly sunny, with a high near 83. Calm wind becoming north northeast 5 to 7 mph in the morning.
Wednesday Night
Mostly clear, with a low around 62. Northeast wind around 6 mph becoming calm in the evening.
Thursday
Sunny, with a high near 83. Calm wind becoming east northeast around 6 mph in the afternoon.
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ABOUT THIS FORECAST

 
Point Forecast:
Portsmouth IA
 41.65°N 95.53°W (Elev. 1250 ft)
3:02 am CDT Aug 15, 2025
3am CDT Aug 15, 2025-6pm CDT Aug 21, 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