Critical Fire Weather Conditions in the Plains; Increasing Severe Weather Chances for the Plains and Upper Midwest

A strengthening storm system will bring impactful weather to the much of Central U.S. over the next couple of days, including heavy snow in the northern Rockies, Critical fire weather conditions for portions of the Plains, and increasing severe weather chances from the central/southern Plains to the Upper Midwest. Read More >

Hazardous Weather Conditions

Current conditions at

Harlan, Harlan Municipal Airport (KHNR)

Lat: 41.58°NLon: 95.34°WElev: 1230ft.

Overcast and Breezy

64°F

18°C

Humidity 88%
Wind Speed S 21 mph
Barometer 29.65 in
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 23 Apr 3:55 am CDT
Extended Forecast for

Portsmouth IA

  • Overnight

    Overnight: A 30 percent chance of showers and thunderstorms, mainly after 5am.  Mostly cloudy, with a low around 60. Breezy, with a south wind around 20 mph, with gusts as high as 28 mph.  New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 60 °F

    Chance
    T-storms and
    Breezy

  • Thursday

    Thursday: A chance of showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 4pm, then showers and thunderstorms likely after 4pm.  Mostly cloudy, with a high near 74. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph.  Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 74 °F

    T-storms
    Likely and
    Breezy

  • Thursday Night

    Thursday Night: A 40 percent chance of showers and thunderstorms before 10pm.  Mostly cloudy, then gradually becoming mostly clear, with a low around 42. Southwest wind 9 to 11 mph becoming north after midnight. Winds could gust as high as 21 mph.  New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 42 °F

    Chance
    T-storms then
    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 63. North northwest wind around 11 mph, with gusts as high as 18 mph.

    High: 63 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 40. North northwest wind 6 to 8 mph becoming east northeast after midnight.

    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.

    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.

    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

Detailed Forecast

Overnight
A 30 percent chance of showers and thunderstorms, mainly after 5am. Mostly cloudy, with a low around 60. Breezy, with a south wind around 20 mph, with gusts as high as 28 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
A chance of showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 4pm, then showers and thunderstorms likely after 4pm. Mostly cloudy, with a high near 74. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A 40 percent chance of showers and thunderstorms before 10pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 42. Southwest wind 9 to 11 mph becoming north after midnight. Winds could gust as high as 21 mph. 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 northwest wind around 11 mph, with gusts as high as 18 mph.
Friday Night
Mostly clear, with a low around 40. North northwest wind 6 to 8 mph becoming east northeast after midnight.
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.
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.
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. 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)
4:06 am CDT Apr 23, 2026
4am CDT Apr 23, 2026-6pm CDT Apr 29, 2026
 
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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