Severe Weather in the Central U.S.; Heavy Rain in the Ohio Valley and Mid-Atlantic

Scattered severe thunderstorms capable of producing severe gusts, large hail, and perhaps a couple tornadoes are forecast from the north-central High Plains into the Upper Mississippi Valley. Widespread thunderstorms may produce excessive rainfall across portions of the Ohio Valley and Mid-Atlantic. Hot conditions and Critical Fire Weather looms over the Great Basin and Southwest through midweek. Read More >

Hazardous Weather Conditions

Current conditions at

Harlan, Harlan Municipal Airport (KHNR)

Lat: 41.58°NLon: 95.34°WElev: 1230ft.

Fair

88°F

31°C

Humidity 52%
Wind Speed S 15 mph
Barometer 29.84 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index92°F (33°C)
Last update 16 Jun 3:55 pm CDT
Extended Forecast for

Portsmouth IA

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly after 3am.  Mostly cloudy, with a low around 65. South southwest wind 6 to 13 mph becoming west after midnight. Winds could gust as high as 18 mph.  New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 65 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm.  Mostly cloudy, with a high near 82. North northwest wind 6 to 9 mph becoming south in the morning.  Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 82 °F

    Chance
    T-storms then
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm before 1am, then showers and thunderstorms likely between 1am and 4am, then showers likely and possibly a thunderstorm after 4am.  Low around 62. East wind 5 to 8 mph becoming north after midnight.  Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 62 °F

    T-storms

  • Wednesday

    Wednesday: A 40 percent chance of showers and thunderstorms.  Mostly sunny, with a high near 77. North wind 8 to 11 mph, with gusts as high as 18 mph.  New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 77 °F

    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 59. North wind 5 to 8 mph becoming calm  in the evening.

    Low: 59 °F

    Mostly Clear

  • Juneteenth

    Juneteenth: Sunny, with a high near 87. Light southwest wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 17 mph.

    High: 87 °F

    Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of showers and thunderstorms.  Mostly clear, with a low around 66. South wind around 10 mph, with gusts as high as 20 mph.

    Low: 66 °F

    Slight Chance
    T-storms

  • Friday

    Friday: Sunny, with a high near 91. Breezy, with a south wind 11 to 21 mph, with gusts as high as 30 mph.

    High: 91 °F

    Sunny then
    Sunny and
    Breezy

  • Friday Night

    Friday Night: Mostly clear, with a low around 73. Breezy, with a south wind 18 to 20 mph, with gusts as high as 30 mph.

    Low: 73 °F

    Mostly Clear
    and Breezy

Detailed Forecast

Tonight
A 30 percent chance of showers and thunderstorms, mainly after 3am. Mostly cloudy, with a low around 65. South southwest wind 6 to 13 mph becoming west after midnight. Winds could gust as high as 18 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 82. North northwest wind 6 to 9 mph becoming south in the morning. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Showers and possibly a thunderstorm before 1am, then showers and thunderstorms likely between 1am and 4am, then showers likely and possibly a thunderstorm after 4am. Low around 62. East wind 5 to 8 mph becoming north after midnight. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 77. North wind 8 to 11 mph, with gusts as high as 18 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Mostly clear, with a low around 59. North wind 5 to 8 mph becoming calm in the evening.
Juneteenth
Sunny, with a high near 87. Light southwest wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 17 mph.
Thursday Night
A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 66. South wind around 10 mph, with gusts as high as 20 mph.
Friday
Sunny, with a high near 91. Breezy, with a south wind 11 to 21 mph, with gusts as high as 30 mph.
Friday Night
Mostly clear, with a low around 73. Breezy, with a south wind 18 to 20 mph, with gusts as high as 30 mph.
Saturday
Sunny, with a high near 94. Breezy, with a south southwest wind 16 to 20 mph, with gusts as high as 29 mph.
Saturday Night
Mostly clear, with a low around 73. Breezy, with a south wind around 18 mph, with gusts as high as 29 mph.
Sunday
Sunny, with a high near 92. Breezy, with a south wind 18 to 23 mph, with gusts as high as 32 mph.
Sunday Night
A chance of showers and thunderstorms. Mostly clear, with a low around 71. Breezy, with a south wind 15 to 18 mph, with gusts as high as 28 mph.
Monday
A chance of showers and thunderstorms. Mostly sunny, with a high near 86. South wind 14 to 16 mph, with gusts as high as 24 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Portsmouth IA
 41.65°N 95.53°W (Elev. 1250 ft)
4:05 pm CDT Jun 16, 2025
4pm CDT Jun 16, 2025-6pm CDT Jun 23, 2025
 
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Additional Resources

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