Severe Thunderstorms and Flooding from the Southern Plains to the Great Lakes; Record Heat in the East

Widely scattered severe thunderstorms may produce damaging winds, hail, and flash flooding from the southern Plains into the lower Great Lakes. Elevated to locally critical fire weather conditions will persist across portions of the Southwest and Southern High Plains due to gusty winds and dry conditions. An early-season heatwave will challenge temperature records across the eastern U.S.. Read More >

Hazardous Weather Conditions

Current conditions at

Grinnell Municipal Airfield (KGGI)

Lat: 41.71°NLon: 92.73°WElev: 1007ft.

Fair

43°F

6°C

Humidity 91%
Wind Speed Calm
Barometer 30.29 in
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 20 May 4:35 am CDT
Extended Forecast for

Brooklyn IA

  • Today

    Today: Increasing clouds, with a high near 63. North northeast wind 6 to 9 mph.

    High: 63 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Partly cloudy, with a low around 43. East northeast wind 5 to 8 mph.

    Low: 43 °F

    Partly Cloudy

  • Thursday

    Thursday: A slight chance of showers between 10am and noon.  Mostly cloudy, with a high near 64. East wind around 10 mph, with gusts as high as 20 mph.  Chance of precipitation is 20%.

    High: 64 °F

    Slight Chance
    Showers then
    Partly Sunny

  • Thursday Night

    Thursday Night: A 50 percent chance of showers after 1am.  Cloudy, with a low around 46. East wind around 10 mph, with gusts as high as 18 mph.  New precipitation amounts of less than a tenth of an inch possible.

    Low: 46 °F

    Cloudy then
    Chance
    Showers

  • Friday

    Friday: Showers likely, mainly after 1pm.  Mostly cloudy, with a high near 62. East wind around 11 mph, with gusts as high as 21 mph.  Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 62 °F

    Showers
    Likely

  • Friday Night

    Friday Night: A 40 percent chance of showers, mainly before 1am.  Mostly cloudy, with a low around 48. New precipitation amounts of less than a tenth of an inch possible.

    Low: 48 °F

    Chance
    Showers

  • Saturday

    Saturday: Partly sunny, with a high near 72.

    High: 72 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 52.

    Low: 52 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

Detailed Forecast

Today
Increasing clouds, with a high near 63. North northeast wind 6 to 9 mph.
Tonight
Partly cloudy, with a low around 43. East northeast wind 5 to 8 mph.
Thursday
A slight chance of showers between 10am and noon. Mostly cloudy, with a high near 64. East wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Thursday Night
A 50 percent chance of showers after 1am. Cloudy, with a low around 46. East wind around 10 mph, with gusts as high as 18 mph. New precipitation amounts of less than a tenth of an inch possible.
Friday
Showers likely, mainly after 1pm. Mostly cloudy, with a high near 62. East wind around 11 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
A 40 percent chance of showers, mainly before 1am. Mostly cloudy, with a low around 48. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Partly sunny, with a high near 72.
Saturday Night
Mostly cloudy, with a low around 52.
Sunday
Mostly sunny, with a high near 79.
Sunday Night
Partly cloudy, with a low around 53.
Memorial Day
Mostly sunny, with a high near 83.
Monday Night
Partly cloudy, with a low around 57.
Tuesday
Mostly sunny, with a high near 86.
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ABOUT THIS FORECAST

 
Point Forecast:
Brooklyn IA
 41.72°N 92.43°W
3:16 am CDT May 20, 2026
4am CDT May 20, 2026-6pm CDT May 26, 2026
 
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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