National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Extreme Heat Across the Southern U.S.; Severe Thunderstorms and Heavy Rain in the Plains and Mississippi Valley

A heat wave over the Southwest will intensify late week, peaking and expanding into the Intermountain West and northern High Plains this weekend. Severe thunderstorms and heavy rain are expected over portions of the Plains and Mississippi Valley tonight, which will shift to parts of the Upper Midwest and mid-Mississippi Valley Friday. Monsoonal showers and flooding persist in the Desert Southwest. Read More >

Current conditions at

Harlan, Harlan Municipal Airport (KHNR)

Lat: 41.58°NLon: 95.34°WElev: 1230ft.

Mostly Cloudy

75°F

24°C

Humidity 94%
Wind Speed SE 9 mph
Barometer 29.90 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Last update 30 Jul 7:55 pm CDT
Extended Forecast for

Westphalia IA

  • Tonight

    Tonight: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 1am. Some of the storms could produce heavy rainfall. Low around 67. South wind around 11 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

    Low: 67 °F

    Chance
    T-storms then
    Heavy Rain

  • Friday

    Friday: A chance of showers and thunderstorms. Mostly cloudy, with a high near 78. Breezy, with a west wind 10 to 15 mph becoming north 16 to 21 mph in the afternoon. Winds could gust as high as 29 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 78 °F

    Chance
    Showers and
    Breezy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 58. Breezy, with a north wind 17 to 23 mph, with gusts as high as 32 mph.

    Low: 58 °F

    Mostly Cloudy
    and Breezy

  • Saturday

    Saturday: Sunny, with a high near 80. North wind 15 to 17 mph, with gusts as high as 24 mph.

    High: 80 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 58. North northeast wind 5 to 10 mph becoming light in the evening. Winds could gust as high as 16 mph.

    Low: 58 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 82. Calm wind becoming east around 5 mph in the afternoon.

    High: 82 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 61. East southeast wind 3 to 5 mph.

    Low: 61 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 83. South southeast wind 5 to 10 mph, with gusts as high as 17 mph.

    High: 83 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 63. South southeast wind 6 to 9 mph.

    Low: 63 °F

    Mostly Clear

Detailed Forecast

Tonight
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 1am. Some of the storms could produce heavy rainfall. Low around 67. South wind around 11 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Friday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 78. Breezy, with a west wind 10 to 15 mph becoming north 16 to 21 mph in the afternoon. Winds could gust as high as 29 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
Mostly cloudy, with a low around 58. Breezy, with a north wind 17 to 23 mph, with gusts as high as 32 mph.
Saturday
Sunny, with a high near 80. North wind 15 to 17 mph, with gusts as high as 24 mph.
Saturday Night
Mostly clear, with a low around 58. North northeast wind 5 to 10 mph becoming light in the evening. Winds could gust as high as 16 mph.
Sunday
Sunny, with a high near 82. Calm wind becoming east around 5 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 61. East southeast wind 3 to 5 mph.
Monday
Sunny, with a high near 83. South southeast wind 5 to 10 mph, with gusts as high as 17 mph.
Monday Night
Mostly clear, with a low around 63. South southeast wind 6 to 9 mph.
Tuesday
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 84. South wind 3 to 6 mph.
Tuesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 63. Northeast wind 3 to 6 mph.
Wednesday
A chance of showers and thunderstorms. Partly sunny, with a high near 80. East wind 3 to 7 mph.
Wednesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 63. East wind around 8 mph.
Thursday
Mostly sunny, with a high near 85. Southeast wind 7 to 10 mph, with gusts as high as 16 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Westphalia IA
 41.72°N 95.38°W (Elev. 1398 ft)
Last Update:
7:35 pm CDT Jul 30, 2026
Forecast Valid:
8pm CDT Jul 30, 2026-6pm CDT Aug 6, 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