Severe Thunderstorms and Heavy Rainfall Across the Midwest into the Great Lakes Region; Significant Heat in the Southwest

Strong to severe storms may produce damaging winds, isolated hail, and a few tornadoes from the Midwest into the lower Great Lakes. These storms may also produce areas of heavy rain and flash flooding. Significant heat will continue across parts of the Desert Southwest into western Texas and north Alaska. Dangerous heat will also build into the Eastern and Central U.S. and continue into next week. Read More >

Hazardous Weather Conditions

Current conditions at

Des Moines International Airport (KDSM)

Lat: 41.53°NLon: 93.65°WElev: 942ft.

Overcast

73°F

23°C

Humidity 76%
Wind Speed Vrbl 3 mph
Barometer 29.82 in (1009.3 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Last update 18 Jun 11:54 am CDT
Extended Forecast for

Grimes IA

  • Today

    Today: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a high near 79. North northeast wind 7 to 9 mph.  New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 79 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 50 percent chance of showers and thunderstorms, mainly before 9pm.  Mostly cloudy, then gradually becoming mostly clear, with a low around 60. West northwest wind 5 to 8 mph.  New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 60 °F

    Chance
    T-storms then
    Mostly Clear

  • Juneteenth

    Juneteenth: Sunny, with a high near 86. West wind 5 to 7 mph.

    High: 86 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 69. South wind 7 to 10 mph.

    Low: 69 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 92. Windy, with a south wind 11 to 21 mph, with gusts as high as 31 mph.

    High: 92 °F

    Sunny and
    Windy

  • Friday Night

    Friday Night: Mostly clear, with a low around 78. Windy.

    Low: 78 °F

    Mostly Clear
    and Windy

  • Saturday

    Saturday: Sunny, with a high near 96. Windy.

    High: 96 °F

    Sunny and
    Windy

  • Saturday Night

    Saturday Night: Clear, with a low around 77. Breezy.

    Low: 77 °F

    Clear and
    Breezy

  • Sunday

    Sunday: Sunny, with a high near 95. Windy.

    High: 95 °F

    Sunny and
    Windy

Detailed Forecast

Today
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 79. North northeast wind 7 to 9 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
A 50 percent chance of showers and thunderstorms, mainly before 9pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 60. West northwest wind 5 to 8 mph. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Juneteenth
Sunny, with a high near 86. West wind 5 to 7 mph.
Thursday Night
Mostly clear, with a low around 69. South wind 7 to 10 mph.
Friday
Sunny, with a high near 92. Windy, with a south wind 11 to 21 mph, with gusts as high as 31 mph.
Friday Night
Mostly clear, with a low around 78. Windy.
Saturday
Sunny, with a high near 96. Windy.
Saturday Night
Clear, with a low around 77. Breezy.
Sunday
Sunny, with a high near 95. Windy.
Sunday Night
Mostly clear, with a low around 75. Breezy.
Monday
A 30 percent chance of showers and thunderstorms. Sunny, with a high near 93.
Monday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72.
Tuesday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 89.
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ABOUT THIS FORECAST

 
Point Forecast:
Grimes IA
 41.67°N 93.8°W
11:37 am CDT Jun 18, 2025
11am CDT Jun 18, 2025-6pm CDT Jun 24, 2025
 
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Additional Resources

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