Severe Thunderstorms and Heavy Rainfall Across the South; Heat Spreads Across the West and Southern Plains

A couple of frontal boundaries will move east and south from the Plains to the Gulf and Atlantic coastlines. These boundaries will focus showers and thunderstorms through the weekend, with scattered severe thunderstorms from the Southern Plains and across the Gulf Coast states. Locally heavy rainfall may also occur, which may be welcome news across drought areas. Meanwhile, heat spreads westward. Read More >

Current conditions at

Grinnell Municipal Airfield (KGGI)

Lat: 41.71°NLon: 92.73°WElev: 1007ft.

Fair

44°F

7°C

Humidity 34%
Wind Speed Calm
Barometer 30.03 in
Dewpoint 17°F (-8°C)
Visibility 10.00 mi
Last update 10 May 2:15 am CDT
Extended Forecast for

Grinnell IA

  • Overnight

    Overnight: Mostly clear, with a low around 41. North northwest wind around 7 mph.

    Low: 41 °F

    Mostly Clear

  • Sunday

    Sunday: Increasing clouds, with a high near 68. Light north wind becoming northwest 9 to 14 mph in the afternoon. Winds could gust as high as 22 mph.

    High: 68 °F

    Increasing
    Clouds

  • Sunday Night

    Sunday Night: Mostly cloudy, then gradually becoming clear, with a low around 40. Northwest wind 5 to 8 mph becoming light and variable  after midnight.

    Low: 40 °F

    Decreasing
    Clouds

  • Monday

    Monday: Sunny, with a high near 70. Light and variable wind.

    High: 70 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 52. Southeast wind 5 to 14 mph, with gusts as high as 23 mph.

    Low: 52 °F

    Partly Cloudy

  • Tuesday

    Tuesday: 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 81. Windy.  Chance of precipitation is 20%.

    High: 81 °F

    Slight Chance
    T-storms and
    Windy

  • Tuesday Night

    Tuesday Night: Clear, with a low around 50.

    Low: 50 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 72.

    High: 72 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 44.

    Low: 44 °F

    Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 41. North northwest wind around 7 mph.
Sunday
Increasing clouds, with a high near 68. Light north wind becoming northwest 9 to 14 mph in the afternoon. Winds could gust as high as 22 mph.
Sunday Night
Mostly cloudy, then gradually becoming clear, with a low around 40. Northwest wind 5 to 8 mph becoming light and variable after midnight.
Monday
Sunny, with a high near 70. Light and variable wind.
Monday Night
Partly cloudy, with a low around 52. Southeast wind 5 to 14 mph, with gusts as high as 23 mph.
Tuesday
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 81. Windy. Chance of precipitation is 20%.
Tuesday Night
Clear, with a low around 50.
Wednesday
Sunny, with a high near 72.
Wednesday Night
Clear, with a low around 44.
Thursday
Sunny, with a high near 76. Breezy.
Thursday Night
A 40 percent chance of showers. Partly cloudy, with a low around 55.
Friday
Mostly sunny, with a high near 86.
Friday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 59.
Saturday
Mostly sunny, with a high near 87.
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ABOUT THIS FORECAST

 
Point Forecast:
Grinnell IA
 41.75°N 92.72°W
1:26 am CDT May 10, 2026
2am CDT May 10, 2026-6pm CDT May 16, 2026
 
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Additional Resources

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