Areas of Severe Thunderstorms and Heavy Rain Possible through the Weekend

There will be daily chances for scattered thunderstorms across portions of the Central and Eastern U.S. through the weekend, with severe thunderstorms possible in the northern Plains and Upper Midwest. Potential severe storm hazards may include large hail, damaging winds, and a few tornadoes. Storms could also produce heavy rain that may lead to isolated instances of flash flooding. Read More >

Hazardous Weather Conditions

Current conditions at

Grinnell Municipal Airfield (KGGI)

Lat: 41.71°NLon: 92.73°WElev: 1007ft.

Fair

82°F

28°C

Humidity 64%
Wind Speed Calm
Barometer 29.97 in
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 27 Jun 5:35 pm CDT
Extended Forecast for

Brooklyn IA

  • Tonight

    Tonight: Mostly clear, with a low around 65. Light and variable wind.

    Low: 65 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 91. South wind 6 to 9 mph.

    High: 91 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 71. South wind 5 to 7 mph.

    Low: 71 °F

    Mostly Clear

  • Sunday

    Sunday: A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm.  Mostly sunny, with a high near 89. South southwest wind 6 to 9 mph.  Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 89 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Sunday Night

    Sunday Night: Showers and thunderstorms likely before 10pm, then showers likely and possibly a thunderstorm between 10pm and 1am, then a chance of showers and thunderstorms after 1am.  Mostly cloudy, with a low around 68. West wind around 6 mph becoming light and variable.  Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 68 °F

    T-storms
    Likely then
    Showers
    Likely

  • Monday

    Monday: A 20 percent chance of showers before 1pm.  Mostly sunny, with a high near 84.

    High: 84 °F

    Slight Chance
    Showers

  • Monday Night

    Monday Night: Clear, with a low around 62.

    Low: 62 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 63.

    Low: 63 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 65. Light and variable wind.
Saturday
Sunny, with a high near 91. South wind 6 to 9 mph.
Saturday Night
Mostly clear, with a low around 71. South wind 5 to 7 mph.
Sunday
A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 89. South southwest wind 6 to 9 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Showers and thunderstorms likely before 10pm, then showers likely and possibly a thunderstorm between 10pm and 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 68. West wind around 6 mph becoming light and variable. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Monday
A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 84.
Monday Night
Clear, with a low around 62.
Tuesday
Sunny, with a high near 85.
Tuesday Night
Mostly clear, with a low around 63.
Wednesday
Mostly sunny, with a high near 85.
Wednesday Night
Partly cloudy, with a low around 65.
Thursday
A 30 percent chance of showers. Mostly sunny, with a high near 87.
Thursday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 69.
Independence Day
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87.
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ABOUT THIS FORECAST

 
Point Forecast:
Brooklyn IA
 41.73°N 92.46°W
4:34 pm CDT Jun 27, 2025
5pm CDT Jun 27, 2025-6pm CDT Jul 4, 2025
 
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Additional Resources

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