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

Hazardous Weather Conditions

Current conditions at

Grinnell Municipal Airfield (KGGI)

Lat: 41.71°NLon: 92.73°WElev: 1007ft.

Fair

73°F

23°C

Humidity 81%
Wind Speed SW 6 mph
Barometer 30.09 in
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Last update 8 Jul 8:35 am CDT
Extended Forecast for

Brooklyn IA

  • Today

    Today: Sunny, with a high near 89. South southwest wind 5 to 8 mph.

    High: 89 °F

    Sunny

  • Tonight

    Tonight: A chance of showers and thunderstorms. Increasing clouds, with a low around 68. South southwest wind 3 to 6 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 68 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Thursday

    Thursday: A 40 percent chance of showers and thunderstorms, mainly between 3pm and 5pm. Cloudy, then gradually becoming mostly sunny, with a high near 84. Light and variable wind becoming west around 6 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 84 °F

    Chance
    Showers then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A 20 percent chance of showers after 1am. Partly cloudy, with a low around 64. Calm wind.

    Low: 64 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Friday

    Friday: A slight chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 85. Calm wind becoming northeast around 5 mph. Chance of precipitation is 20%.

    High: 85 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 65 °F

    Chance
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 86.

    High: 86 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 65.

    Low: 65 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 89.

    High: 89 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 89. South southwest wind 5 to 8 mph.
Tonight
A chance of showers and thunderstorms. Increasing clouds, with a low around 68. South southwest wind 3 to 6 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
A 40 percent chance of showers and thunderstorms, mainly between 3pm and 5pm. Cloudy, then gradually becoming mostly sunny, with a high near 84. Light and variable wind becoming west around 6 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 64. Calm wind.
Friday
A slight chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 85. Calm wind becoming northeast around 5 mph. Chance of precipitation is 20%.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
Mostly sunny, with a high near 86.
Saturday Night
Mostly clear, with a low around 65.
Sunday
Sunny, with a high near 89.
Sunday Night
Clear, with a low around 66.
Monday
Sunny, with a high near 91.
Monday Night
Clear, with a low around 68.
Tuesday
Sunny, with a high near 93.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Brooklyn IA
 41.73°N 92.46°W
Last Update:
6:02 am CDT Jul 8, 2026
Forecast Valid:
8am CDT Jul 8, 2026-6pm CDT Jul 14, 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