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Extreme Heat and Tropical Storm Bertha Impacts

Dangerous heat will expand from the Gulf Coast into the Southern Plains and Desert Southwest through week's end. Additional extreme heat impacting the Pacific Northwest will shift to the northern Plains by the weekend. Tropical Storm Bertha is expected to continue to impact portions of the northwestern Gulf Coast from south central Louisiana to the upper Texas coast today. Read More >

Current conditions at

Harlan, Harlan Municipal Airport (KHNR)

Lat: 41.58°NLon: 95.34°WElev: 1230ft.

Fair

75°F

24°C

Humidity 69%
Wind Speed S 8 G 15 mph
Barometer 30.17 in
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 23 Jul 11:55 am CDT
Extended Forecast for

Walnut IA

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 80. South wind around 10 mph.

    High: 80 °F

    Mostly Cloudy

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 4am. Low around 63. Southeast wind 6 to 9 mph, with gusts as high as 16 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 63 °F

    Slight Chance
    T-storms then
    Showers

  • Friday

    Friday: Showers and thunderstorms before 11am, then a slight chance of showers between 11am and noon. High near 76. South southeast wind 9 to 11 mph, with gusts as high as 17 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    High: 76 °F

    Showers then
    Cloudy

  • Friday Night

    Friday Night: Increasing clouds, with a low around 66. South southeast wind 3 to 8 mph.

    Low: 66 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Mostly sunny, with a high near 92. Calm wind becoming south southwest around 6 mph in the afternoon.

    High: 92 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 71. South southwest wind around 5 mph.

    Low: 71 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 95. South wind 6 to 14 mph, with gusts as high as 20 mph.

    High: 95 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 75. South wind 10 to 15 mph, with gusts as high as 21 mph.

    Low: 75 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 96. South southwest wind 7 to 9 mph becoming north in the afternoon.

    High: 96 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 80. South wind around 10 mph.
Tonight
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 4am. Low around 63. Southeast wind 6 to 9 mph, with gusts as high as 16 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
Showers and thunderstorms before 11am, then a slight chance of showers between 11am and noon. High near 76. South southeast wind 9 to 11 mph, with gusts as high as 17 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Friday Night
Increasing clouds, with a low around 66. South southeast wind 3 to 8 mph.
Saturday
Mostly sunny, with a high near 92. Calm wind becoming south southwest around 6 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 71. South southwest wind around 5 mph.
Sunday
Mostly sunny, with a high near 95. South wind 6 to 14 mph, with gusts as high as 20 mph.
Sunday Night
Mostly clear, with a low around 75. South wind 10 to 15 mph, with gusts as high as 21 mph.
Monday
Sunny, with a high near 96. South southwest wind 7 to 9 mph becoming north in the afternoon.
Monday Night
Partly cloudy, with a low around 72. East wind 3 to 7 mph.
Tuesday
Mostly sunny, with a high near 91. East wind 5 to 7 mph becoming south southeast in the afternoon.
Tuesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 68. East southeast wind 3 to 6 mph.
Wednesday
Mostly sunny, with a high near 89. South southeast wind 3 to 7 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Walnut IA
 41.48°N 95.23°W (Elev. 1348 ft)
Last Update:
11:11 am CDT Jul 23, 2026
Forecast Valid:
12pm CDT Jul 23, 2026-6pm CDT Jul 29, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation