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

Dangerous Heat and Possible Flooding

Dangerous heat will persist across the Southwest U.S. through Saturday with daytime highs of 110-115°F. Extreme Heat Warnings remain in effect. Dangerous heat will build across the southern Plains again beginning this weekend. Heavy to excessive rain over the Carolinas Friday may lead to isolated areas of flash flooding. Read More >

Hazardous Weather Conditions

Current conditions at

Des Moines International Airport (KDSM)

Lat: 41.53°NLon: 93.65°WElev: 942ft.

Mostly Cloudy

83°F

28°C

Humidity 46%
Wind Speed S 8 mph
Barometer 30.08 in (1017.8 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 28 Aug 5:54 pm CDT
Extended Forecast for

Runnells IA

  • Tonight

    Tonight: Increasing clouds, with a low around 68. South southeast wind 6 to 9 mph.

    Low: 68 °F

    Increasing
    Clouds

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms, mainly before 10am. Cloudy through mid morning, then gradual clearing, with a high near 87. Breezy, with a south southeast wind 10 to 17 mph, with gusts as high as 26 mph. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 87 °F

    Chance
    Showers then
    Mostly Sunny
    and Breezy

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 75. South wind 11 to 15 mph, with gusts as high as 24 mph.

    Low: 75 °F

    Partly Cloudy

  • Sunday

    Sunday: A slight chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 1pm. Mostly sunny, with a high near 93. Heat index values as high as 101. South southwest wind 11 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.

    High: 93 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 77. South southeast wind 11 to 13 mph, with gusts as high as 20 mph.

    Low: 77 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 94.

    High: 94 °F

    Slight Chance
    T-storms

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 75.

    Low: 75 °F

    Partly Cloudy
    then Chance
    T-storms

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 93.

    High: 93 °F

    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 74.

    Low: 74 °F

    Partly Cloudy
    then Chance
    T-storms

Detailed Forecast

Tonight
Increasing clouds, with a low around 68. South southeast wind 6 to 9 mph.
Saturday
A 30 percent chance of showers and thunderstorms, mainly before 10am. Cloudy through mid morning, then gradual clearing, with a high near 87. Breezy, with a south southeast wind 10 to 17 mph, with gusts as high as 26 mph. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Partly cloudy, with a low around 75. South wind 11 to 15 mph, with gusts as high as 24 mph.
Sunday
A slight chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 1pm. Mostly sunny, with a high near 93. Heat index values as high as 101. South southwest wind 11 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
Sunday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 77. South southeast wind 11 to 13 mph, with gusts as high as 20 mph.
Monday
A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 94.
Monday Night
A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 75.
Tuesday
A 20 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 93.
Tuesday Night
A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 74.
Wednesday
Mostly sunny, with a high near 93.
Wednesday Night
Mostly clear, with a low around 75.
Thursday
Mostly sunny, with a high near 93.
Thursday Night
Partly cloudy, with a low around 74.
Friday
Mostly sunny, with a high near 91.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Runnells IA
 41.52°N 93.37°W
Last Update:
5:47 pm CDT Aug 28, 2026
Forecast Valid:
6pm CDT Aug 28, 2026-6pm CDT Sep 4, 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