Thunderstorms and Heavy Rainfall in the Plains; Hazardous Heat in the South and Southeast

Severe thunderstorms will be possible across the northern/central Plains through Tuesday afternoon and from the central Plains to the Mid-Mississippi Valley Tuesday evening through Wednesday morning. Storms may produce large hail and damaging wind gusts, and heavy rainfall may lead to scattered instances of flash flooding. Meanwhile, hazardous heat persists across the South and Southeast. Read More >

Hazardous Weather Conditions

Current conditions at

Des Moines International Airport (KDSM)

Lat: 41.53°NLon: 93.65°WElev: 942ft.

Overcast

72°F

22°C

Humidity 79%
Wind Speed S 5 mph
Barometer 30.03 in (1016.1 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Last update 17 Aug 11:54 pm CDT
Extended Forecast for

Des Moines IA

  • Overnight

    Overnight: A 30 percent chance of showers and thunderstorms, mainly after 5am.  Partly cloudy, with a low around 67. South wind 3 to 5 mph.  New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 67 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers and thunderstorms before 8am, then showers likely and possibly a thunderstorm between 8am and 10am, then a chance of showers and thunderstorms after 10am.  Partly sunny, with a high near 80. West southwest wind 6 to 8 mph.  Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 80 °F

    Showers
    Likely then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms, mainly before 8pm.  Mostly cloudy, then gradually becoming mostly clear, with a low around 65. West northwest wind around 5 mph becoming calm  in the evening.  New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 65 °F

    Chance
    T-storms then
    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 79. Calm wind becoming east around 5 mph.

    High: 79 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 63. Light east northeast wind.

    Low: 63 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of showers and thunderstorms.  Mostly clear, with a low around 65.

    Low: 65 °F

    Slight Chance
    T-storms

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms.  Mostly sunny, with a high near 83.

    High: 83 °F

    Chance
    T-storms

  • Friday Night

    Friday Night: A 40 percent chance of showers before 1am.  Partly cloudy, with a low around 65.

    Low: 65 °F

    Chance
    Showers

Detailed Forecast

Overnight
A 30 percent chance of showers and thunderstorms, mainly after 5am. Partly cloudy, with a low around 67. South wind 3 to 5 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
A chance of showers and thunderstorms before 8am, then showers likely and possibly a thunderstorm between 8am and 10am, then a chance of showers and thunderstorms after 10am. Partly sunny, with a high near 80. West southwest wind 6 to 8 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 65. West northwest wind around 5 mph becoming calm in the evening. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
Partly sunny, with a high near 79. Calm wind becoming east around 5 mph.
Wednesday Night
Partly cloudy, with a low around 63. Light east northeast wind.
Thursday
Sunny, with a high near 80.
Thursday Night
A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 65.
Friday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 83.
Friday Night
A 40 percent chance of showers before 1am. Partly cloudy, with a low around 65.
Saturday
Sunny, with a high near 79.
Saturday Night
Mostly clear, with a low around 62.
Sunday
Mostly sunny, with a high near 79.
Sunday Night
Mostly cloudy, with a low around 63.
Monday
Partly sunny, with a high near 79.
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ABOUT THIS FORECAST

 
Point Forecast:
Des Moines IA
 41.58°N 93.63°W
10:43 pm CDT Aug 17, 2026
12am CDT Aug 18, 2026-6pm CDT Aug 24, 2026
 
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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