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.

Fair

48°F

9°C

Humidity 29%
Wind Speed SE 15 mph
Barometer 30.30 in
Dewpoint 17°F (-8°C)
Visibility 10.00 mi
Wind Chill42°F (6°C)
Last update 20 Apr 10:15 am CDT
Extended Forecast for

Brooklyn IA

  • Today

    Today: Sunny, with a high near 62. South southeast wind 10 to 15 mph, with gusts as high as 21 mph.

    High: 62 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 49. South southeast wind 10 to 14 mph, with gusts as high as 23 mph.

    Low: 49 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 78. Southwest wind 9 to 11 mph, with gusts as high as 20 mph.

    High: 78 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 52. West wind around 5 mph becoming light and variable in the evening.

    Low: 52 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 79. Light south wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 20 mph.

    High: 79 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

  • Thursday

    Thursday: A 50 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 75. Windy.

    High: 75 °F

    Windy. Partly
    Sunny then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm before 1am, then a chance of showers. Low around 49. Windy. Chance of precipitation is 80%.

    Low: 49 °F

    Showers and
    Windy

  • Friday

    Friday: Mostly sunny, with a high near 63.

    High: 63 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 62. South southeast wind 10 to 15 mph, with gusts as high as 21 mph.
Tonight
Partly cloudy, with a low around 49. South southeast wind 10 to 14 mph, with gusts as high as 23 mph.
Tuesday
Sunny, with a high near 78. Southwest wind 9 to 11 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly clear, with a low around 52. West wind around 5 mph becoming light and variable in the evening.
Wednesday
Sunny, with a high near 79. Light south wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 20 mph.
Wednesday Night
Partly cloudy, with a low around 58.
Thursday
A 50 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 75. Windy.
Thursday Night
Showers and possibly a thunderstorm before 1am, then a chance of showers. Low around 49. Windy. Chance of precipitation is 80%.
Friday
Mostly sunny, with a high near 63.
Friday Night
Partly cloudy, with a low around 41.
Saturday
Mostly sunny, with a high near 61.
Saturday Night
Mostly cloudy, with a low around 41.
Sunday
Mostly sunny, with a high near 60.
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:
7:32 am CDT Apr 20, 2026
Forecast Valid:
10am CDT Apr 20, 2026-6pm CDT Apr 26, 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