Weather WorldBrooklyn, IA 7-Day Night Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Weather Quote O' the Day
Brooklyn, IA Weather Forecast
Brooklyn, IA Weather Forecast Date: 544 PM CDT Sat Sep 12 2026
The area/counties/county of: Poweshiek, including the city of Grinnell.or toggle through each period.
Tonight... Mostly clear this evening, then becoming partly cloudy. Lows in the mid 50s. North winds around 5 mph.
Sunday... Mostly sunny in the morning, then becoming mostly cloudy. A 50% chance of showers. Highs around 70. Northeast winds around 5 mph.
Sunday Night... Mostly cloudy in the evening, then becoming partly cloudy. Lows in the mid 50s. East winds 5 to 10 mph.
Monday... Showers likely in the morning, then partly sunny with a chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the upper 70s. Southeast winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 70%.
Monday Night... Partly cloudy in the evening, then becoming mostly cloudy. A chance of thunderstorms. A chance of showers in the evening, then showers after midnight. More humid with lows in the mid 60s. South winds 15 to 20 mph, becoming southwest 10 to 15 mph after midnight. Chance of rain 90%.
Tuesday... A chance of thunderstorms. Showers. Highs in the upper 70s. Chance of rain 90%.
Tuesday Night... A chance of thunderstorms. Showers likely in the evening, then showers after midnight. Locally heavy rainfall possible after midnight. Lows in the upper 50s. Chance of rain 90%.
Wednesday... A chance of thunderstorms. Showers. Highs in the upper 60s. Chance of rain 90%.
Wednesday Night... Showers with a chance of thunderstorms. Lows in the lower 60s. Chance of rain 80%.
Thursday... Mostly cloudy. A chance of showers, mainly in the morning. Highs in the mid 70s. Chance of rain 50%.
Thursday Night... Mostly cloudy with a 50% chance of showers. Lows in the upper 50s.
Friday... Partly sunny with a chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the mid 70s. Chance of rain 50%.
Friday Night... Partly cloudy in the evening, then becoming mostly cloudy. A chance of showers with a slight chance of thunderstorms. Lows in the mid 50s. Chance of rain 40%.
POP = Probability of Precipitation
Brooklyn Radar Loop
Use the map search tool if you want to place a location marker on the radar map...