Multiple Days of Severe Weather from Thunderstorms and Wildfires

Active spring pattern across the center of the nation with several rounds of severe thunderstorms in the forecast through the weekend. The regions under the greatest threats are the southern Plains into the Mississippi Valley. Meanwhile, dry and breezy conditions with dry fuels are aiding in wildfires across the western High Plains and the Southeast. Wind and some snow for northern Rockies. Read More >

Hazardous Weather Conditions

Current conditions at

Harlan, Harlan Municipal Airport (KHNR)

Lat: 41.58°NLon: 95.34°WElev: 1230ft.

Mostly Cloudy

52°F

11°C

Humidity 100%
Wind Speed N 6 mph
Barometer 29.91 in
Dewpoint 52°F (11°C)
Visibility 7.00 mi
Wind Chill50°F (10°C)
Last update 26 Apr 8:35 am CDT
Extended Forecast for

Portsmouth IA

  • Today

    Today: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5pm.  Mostly cloudy, with a high near 69. Southeast wind 8 to 15 mph, with gusts as high as 23 mph.  Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 69 °F

    Chance
    Showers then
    Showers
    Likely

  • Tonight

    Tonight: Showers and possibly a thunderstorm.  Low around 55. Southeast wind 13 to 15 mph, with gusts as high as 23 mph.  Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.

    Low: 55 °F

    T-storms

  • Monday

    Monday: Showers and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms between 1pm and 4pm, then a chance of showers after 4pm.  High near 64. Breezy, with a south southeast wind 10 to 15 mph becoming west northwest 17 to 22 mph in the afternoon. Winds could gust as high as 31 mph.  Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 64 °F

    Showers and
    Breezy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 38. Breezy, with a west northwest wind 13 to 22 mph, with gusts as high as 30 mph.

    Low: 38 °F

    Mostly Cloudy
    and Breezy
    then Mostly
    Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 54. North northwest wind around 10 mph, with gusts as high as 17 mph.

    High: 54 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 35. North northwest wind 3 to 8 mph.

    Low: 35 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 60. Calm wind becoming west northwest 5 to 9 mph in the morning.

    High: 60 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 38. Northwest wind around 5 mph becoming calm  in the evening.

    Low: 38 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 61. Light and variable wind becoming northwest 6 to 11 mph in the morning.

    High: 61 °F

    Partly Sunny

Detailed Forecast

Today
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5pm. Mostly cloudy, with a high near 69. Southeast wind 8 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and possibly a thunderstorm. Low around 55. Southeast wind 13 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Monday
Showers and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms between 1pm and 4pm, then a chance of showers after 4pm. High near 64. Breezy, with a south southeast wind 10 to 15 mph becoming west northwest 17 to 22 mph in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Monday Night
Mostly cloudy, with a low around 38. Breezy, with a west northwest wind 13 to 22 mph, with gusts as high as 30 mph.
Tuesday
Mostly cloudy, with a high near 54. North northwest wind around 10 mph, with gusts as high as 17 mph.
Tuesday Night
Partly cloudy, with a low around 35. North northwest wind 3 to 8 mph.
Wednesday
Mostly sunny, with a high near 60. Calm wind becoming west northwest 5 to 9 mph in the morning.
Wednesday Night
Partly cloudy, with a low around 38. Northwest wind around 5 mph becoming calm in the evening.
Thursday
Partly sunny, with a high near 61. Light and variable wind becoming northwest 6 to 11 mph in the morning.
Thursday Night
Mostly cloudy, with a low around 37. North northwest wind 5 to 8 mph becoming calm in the evening.
Friday
Mostly sunny, with a high near 62. Calm wind becoming north 5 to 8 mph in the afternoon.
Friday Night
Mostly clear, with a low around 38. Light and variable wind.
Saturday
Sunny, with a high near 69. Calm wind becoming west 5 to 8 mph in the morning.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Portsmouth IA
 41.65°N 95.5°W (Elev. 1319 ft)
7:35 am CDT Apr 26, 2026
8am CDT Apr 26, 2026-6pm CDT May 2, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database