Severe Weather in the Central U.S.; Critical Fire Weather in the Southern Plains

Severe thunderstorms are expected to form today from northern Oklahoma into southern Minnesota. Very large hail and tornadoes will be the initial threats this afternoon, then transition into a wind threat tonight. Gusty winds, warm temperatures, and very dry conditions will create a Critical Risk of fire weather across portions of the southern Plains today. Read More >

Hazardous Weather Conditions

Current conditions at

Harlan, Harlan Municipal Airport (KHNR)

Lat: 41.58°NLon: 95.34°WElev: 1230ft.

Overcast

66°F

19°C

Humidity 94%
Wind Speed S 17 G 23 mph
Barometer 29.58 in
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 23 Apr 10:15 am CDT
Extended Forecast for

Portsmouth IA

  • Today

    Today: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm.  High near 73. Breezy, with a south wind 15 to 20 mph, with gusts as high as 32 mph.  Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 73 °F

    Breezy.
    Chance
    Showers then
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly before 7pm.  Mostly cloudy during the early evening, then gradual clearing, with a low around 41. South southwest wind 7 to 14 mph becoming north after midnight. Winds could gust as high as 22 mph.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 41 °F

    T-storms
    Likely then
    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 63. North wind 9 to 11 mph, with gusts as high as 20 mph.

    High: 63 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 40. East northeast wind around 7 mph.

    Low: 40 °F

    Mostly Clear

  • Saturday

    Saturday: A 30 percent chance of showers.  Mostly cloudy, with a high near 62. East wind 6 to 11 mph, with gusts as high as 17 mph.

    High: 62 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A 40 percent chance of showers.  Mostly cloudy, with a low around 46. East wind 7 to 9 mph.  New precipitation amounts of less than a tenth of an inch possible.

    Low: 46 °F

    Chance
    Showers

  • Sunday

    Sunday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm.  Mostly cloudy, with a high near 63. Breezy, with an east wind 10 to 18 mph, with gusts as high as 28 mph.  Chance of precipitation is 70%.

    High: 63 °F

    Showers
    Likely and
    Breezy

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm.  Cloudy, with a low around 47. East southeast wind 15 to 17 mph, with gusts as high as 25 mph.

    Low: 47 °F

    Showers

  • Monday

    Monday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers.  Cloudy, with a high near 59. Breezy, with an east northeast wind 14 to 23 mph becoming west northwest in the afternoon. Winds could gust as high as 32 mph.

    High: 59 °F

    Showers
    Likely and
    Breezy

Detailed Forecast

Today
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. High near 73. Breezy, with a south wind 15 to 20 mph, with gusts as high as 32 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 thunderstorms likely, mainly before 7pm. Mostly cloudy during the early evening, then gradual clearing, with a low around 41. South southwest wind 7 to 14 mph becoming north after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
Sunny, with a high near 63. North wind 9 to 11 mph, with gusts as high as 20 mph.
Friday Night
Mostly clear, with a low around 40. East northeast wind around 7 mph.
Saturday
A 30 percent chance of showers. Mostly cloudy, with a high near 62. East wind 6 to 11 mph, with gusts as high as 17 mph.
Saturday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 46. East wind 7 to 9 mph. New precipitation amounts of less than a tenth of an inch possible.
Sunday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 63. Breezy, with an east wind 10 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 70%.
Sunday Night
Showers and possibly a thunderstorm. Cloudy, with a low around 47. East southeast wind 15 to 17 mph, with gusts as high as 25 mph.
Monday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers. Cloudy, with a high near 59. Breezy, with an east northeast wind 14 to 23 mph becoming west northwest in the afternoon. Winds could gust as high as 32 mph.
Monday Night
A slight chance of showers before 1am. Mostly cloudy, with a low around 37. Breezy, with a west northwest wind 16 to 21 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 29 mph.
Tuesday
Mostly sunny, with a high near 58. West northwest wind 6 to 9 mph.
Tuesday Night
A slight chance of showers. Mostly cloudy, with a low around 40. Northwest wind around 5 mph becoming calm in the evening.
Wednesday
A chance of showers. Partly sunny, with a high near 64. Calm wind becoming north 5 to 8 mph in the morning.
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ABOUT THIS FORECAST

 
Point Forecast:
Portsmouth IA
 41.65°N 95.5°W (Elev. 1319 ft)
10:06 am CDT Apr 23, 2026
10am CDT Apr 23, 2026-6pm CDT Apr 29, 2026
 
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Additional Resources

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