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

Grinnell Municipal Airfield (KGGI)

Lat: 41.71°NLon: 92.73°WElev: 1007ft.

Mostly Cloudy

30°F

-1°C

Humidity 90%
Wind Speed Calm
Barometer 30.17 in
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Last update 9 Jan 9:35 pm CST
Extended Forecast for

Brooklyn IA

  • Tonight

    Tonight: A chance of snow or flurries before 4am, then a slight chance of snow between 4am and 5am, then a chance of flurries after 5am. Cloudy, with a steady temperature around 32. Calm wind becoming west northwest around 6 mph after midnight. Chance of precipitation is 30%. Little or no snow accumulation expected.

    Low: 32 °F

    Mostly Cloudy
    then Chance
    Snow

  • Saturday

    Saturday: A chance of flurries between 9am and 1pm. Mostly cloudy through mid morning, then becoming sunny, with a high near 34. Breezy, with a west northwest wind 6 to 11 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 28 mph.

    High: 34 °F

    Partly Sunny
    then Chance
    Flurries and
    Breezy

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 18. Wind chill values as low as 5. Blustery, with a northwest wind 14 to 18 mph, with gusts as high as 29 mph.

    Low: 18 °F

    Partly Cloudy
    and Blustery

  • Sunday

    Sunday: Sunny, with a high near 31. Wind chill values as low as 5. Northwest wind 6 to 13 mph becoming southwest in the afternoon. Winds could gust as high as 22 mph.

    High: 31 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 24. Southwest wind 6 to 10 mph, with gusts as high as 20 mph.

    Low: 24 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 45.

    High: 45 °F

    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of rain. Partly sunny, with a high near 50.

    High: 50 °F

    Slight Chance
    Rain

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 29.

    Low: 29 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A chance of snow or flurries before 4am, then a slight chance of snow between 4am and 5am, then a chance of flurries after 5am. Cloudy, with a steady temperature around 32. Calm wind becoming west northwest around 6 mph after midnight. Chance of precipitation is 30%. Little or no snow accumulation expected.
Saturday
A chance of flurries between 9am and 1pm. Mostly cloudy through mid morning, then becoming sunny, with a high near 34. Breezy, with a west northwest wind 6 to 11 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 28 mph.
Saturday Night
Partly cloudy, with a low around 18. Wind chill values as low as 5. Blustery, with a northwest wind 14 to 18 mph, with gusts as high as 29 mph.
Sunday
Sunny, with a high near 31. Wind chill values as low as 5. Northwest wind 6 to 13 mph becoming southwest in the afternoon. Winds could gust as high as 22 mph.
Sunday Night
Mostly clear, with a low around 24. Southwest wind 6 to 10 mph, with gusts as high as 20 mph.
Monday
Sunny, with a high near 45.
Monday Night
Mostly cloudy, with a low around 34.
Tuesday
A 20 percent chance of rain. Partly sunny, with a high near 50.
Tuesday Night
Mostly cloudy, with a low around 29.
Wednesday
Partly sunny, with a high near 32.
Wednesday Night
Mostly cloudy, with a low around 18.
Thursday
Mostly sunny, with a high near 31.
Thursday Night
Mostly cloudy, with a low around 23.
Friday
Mostly cloudy, with a high near 34.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Brooklyn IA
 41.73°N 92.46°W
Last Update:
5:11 pm CST Jan 9, 2026
Forecast Valid:
9pm CST Jan 9, 2026-6pm CST Jan 16, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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