Brooklyn, IA Weather & Growing Conditions
Today
84°F
Partly Sunny then Showers And Thunderstorms Likely
Showers and thunderstorms likely after noon. Partly sunny. High near 84, with temperatures falling to around 82 in the afternoon. West northwest wind around 7 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 84°F | Partly Sunny then Showers And Thunderstorms Likely | 7 mph WNW | 72% |
| Tonight | 62°F | Showers And Thunderstorms | 6 to 9 mph N | 87% |
| Wednesday | 75°F | Showers And Thunderstorms then Chance Showers And Thunderstorms | 3 to 7 mph NNE | 75% |
| Wednesday Night | 56°F | Chance Showers And Thunderstorms | 3 mph NNE | 44% |
| Thursday | 81°F | Sunny | 2 mph NE | 5% |
| Thursday Night | 58°F | Mostly Clear | 1 mph E | 0% |
| Friday | 84°F | Sunny | 0 to 5 mph SSE | 5% |
| Friday Night | 64°F | Mostly Clear | 5 mph SSE | 13% |
| Saturday | 87°F | Sunny | 6 mph S | 10% |
| Saturday Night | 70°F | Mostly Clear then Slight Chance Showers And Thunderstorms | 6 to 9 mph S | 15% |
| Sunday | 88°F | Slight Chance Showers And Thunderstorms then Mostly Sunny | 9 mph S | 15% |
| Sunday Night | 69°F | Chance Showers And Thunderstorms | 8 mph S | 35% |
| Monday | 88°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 10 mph S | 35% |
| Monday Night | 69°F | Chance Showers And Thunderstorms | 10 mph E | 30% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Brooklyn, IA
Last spring frost
Apr 28
First fall frost
Oct 10
Growing season
165 days
Hardiness zone
5a
Explore more for Brooklyn, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Belle Plaine, Ia (12.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.