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

Dangerous Heat in the Southwest; Severe Thunderstorms from the Central Plains into the Ohio Valley

Dangerous heat will build across the Southwest U.S. through the end of the week with daytime highs of 110-115°F. Isolated to widely scattered severe storms are expected across parts of the central and southern High Plains, Great Lakes into the Ohio Valley, and parts of the Ozarks to Lower Mississippi Valley today. Read More >

Current conditions at

Des Moines International Airport (KDSM)

Lat: 41.53°NLon: 93.65°WElev: 942ft.

A Few Clouds

83°F

28°C

Humidity 44%
Wind Speed NW 17 mph
Barometer 30.02 in (1015.7 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 26 Aug 3:54 pm CDT
Extended Forecast for

Martensdale IA

  • This Afternoon

    This Afternoon: Sunny, with a high near 84. Northwest wind around 10 mph, with gusts as high as 20 mph.

    High: 84 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 63. North northwest wind 5 to 7 mph becoming calm in the evening.

    Low: 63 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 84. North northwest wind 3 to 7 mph.

    High: 84 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 61. Light and variable wind.

    Low: 61 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 87. Light south wind.

    High: 87 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 69.

    Low: 69 °F

    Partly Cloudy

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 91. Breezy.

    High: 91 °F

    Chance
    Showers and
    Breezy

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 77. Breezy.

    Low: 77 °F

    Partly Cloudy
    and Breezy

  • Sunday

    Sunday: Mostly sunny and hot, with a high near 100. Breezy.

    High: 100 °F

    Hot and
    Breezy

Detailed Forecast

This Afternoon
Sunny, with a high near 84. Northwest wind around 10 mph, with gusts as high as 20 mph.
Tonight
Mostly clear, with a low around 63. North northwest wind 5 to 7 mph becoming calm in the evening.
Thursday
Sunny, with a high near 84. North northwest wind 3 to 7 mph.
Thursday Night
Mostly clear, with a low around 61. Light and variable wind.
Friday
Sunny, with a high near 87. Light south wind.
Friday Night
Partly cloudy, with a low around 69.
Saturday
A 30 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 91. Breezy.
Saturday Night
Partly cloudy, with a low around 77. Breezy.
Sunday
Mostly sunny and hot, with a high near 100. Breezy.
Sunday Night
A 30 percent chance of showers after 1am. Partly cloudy, with a low around 77. Breezy.
Monday
A 30 percent chance of showers. Partly sunny and hot, with a high near 97. Breezy.
Monday Night
A 30 percent chance of showers. Partly cloudy, with a low around 73.
Tuesday
Mostly sunny, with a high near 93.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Martensdale IA
 41.37°N 93.75°W
Last Update:
1:43 pm CDT Aug 26, 2026
Forecast Valid:
4pm CDT Aug 26, 2026-6pm CDT Sep 1, 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