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

Areas of Severe Thunderstorms and Excessive Rainfall Through This Weekend

Severe thunderstorms which can bring large hail, damaging winds, and isolated tornadoes will be possible over parts of the central U.S. through this weekend. Thunderstorms with heavy to excessive rainfall moving from Texas into the mid-Mississippi Valley through this weekend may produce areas of flooding. Read More >

Hazardous Weather Conditions

Current conditions at

Des Moines International Airport (KDSM)

Lat: 41.53°NLon: 93.65°WElev: 942ft.

Mostly Cloudy

77°F

25°C

Humidity 64%
Wind Speed NW 9 mph
Barometer 29.87 in (1010.5 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 6 Jun 8:54 am CDT
Extended Forecast for

Grimes IA

  • Today

    Today: Partly sunny, with a high near 85. Light and variable wind becoming south southeast around 5 mph in the afternoon.

    High: 85 °F

    Partly Sunny

  • Tonight

    Tonight: A chance of showers and thunderstorms between 3am and 4am, then a slight chance of showers. Mostly cloudy, with a low around 67. South southeast wind around 6 mph. Chance of precipitation is 30%.

    Low: 67 °F

    Chance
    T-storms

  • Sunday

    Sunday: Showers and thunderstorms likely before 4pm, then showers likely and possibly a thunderstorm between 4pm and 5pm, then a chance of showers and thunderstorms after 5pm. Mostly cloudy, with a high near 80. Southeast wind 6 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    High: 80 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm. Low around 65. Southeast wind 8 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 65 °F

    Showers

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 85. Southeast wind around 7 mph becoming south southwest in the afternoon. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 85 °F

    Chance
    T-storms

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 68.

    Low: 68 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Tuesday

    Tuesday: Mostly sunny, with a high near 90.

    High: 90 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms before 1am. Mostly clear, with a low around 72.

    Low: 72 °F

    Slight Chance
    T-storms

  • Wednesday

    Wednesday: Sunny, with a high near 94. Windy.

    High: 94 °F

    Sunny and
    Windy

Detailed Forecast

Today
Partly sunny, with a high near 85. Light and variable wind becoming south southeast around 5 mph in the afternoon.
Tonight
A chance of showers and thunderstorms between 3am and 4am, then a slight chance of showers. Mostly cloudy, with a low around 67. South southeast wind around 6 mph. Chance of precipitation is 30%.
Sunday
Showers and thunderstorms likely before 4pm, then showers likely and possibly a thunderstorm between 4pm and 5pm, then a chance of showers and thunderstorms after 5pm. Mostly cloudy, with a high near 80. Southeast wind 6 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
Showers and possibly a thunderstorm. Low around 65. Southeast wind 8 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday
A 30 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 85. Southeast wind around 7 mph becoming south southwest in the afternoon. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 68.
Tuesday
Mostly sunny, with a high near 90.
Tuesday Night
A 20 percent chance of showers and thunderstorms before 1am. Mostly clear, with a low around 72.
Wednesday
Sunny, with a high near 94. Windy.
Wednesday Night
A 50 percent chance of showers and thunderstorms. Mostly clear, with a low around 72. Breezy.
Thursday
Mostly sunny, with a high near 90. Breezy.
Thursday Night
A 40 percent chance of showers. Mostly clear, with a low around 69.
Friday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grimes IA
 41.67°N 93.8°W
Last Update:
6:08 am CDT Jun 6, 2026
Forecast Valid:
9am CDT Jun 6, 2026-6pm CDT Jun 12, 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