Brook, IN Weather & Growing Conditions
This Afternoon
76°F
Chance Rain Showers
A chance of rain showers. Cloudy. High near 76, with temperatures falling to around 74 in the afternoon. South wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 76°F | Chance Rain Showers | 5 mph S | 13% |
| Tonight | 67°F | Chance Showers And Thunderstorms | 0 to 5 mph SSE | 54% |
| Sunday | 76°F | Showers And Thunderstorms Likely | 0 to 10 mph N | 69% |
| Sunday Night | 55°F | Showers And Thunderstorms Likely | 10 mph NE | 69% |
| Monday | 66°F | Chance Rain Showers | 10 mph ENE | 48% |
| Monday Night | 51°F | Chance Rain Showers | 10 mph ENE | 35% |
| Tuesday | 64°F | Chance Rain Showers | 10 mph NE | 31% |
| Tuesday Night | 51°F | Chance Rain Showers | 5 to 10 mph NE | 31% |
| Wednesday | 66°F | Slight Chance Rain Showers then Mostly Cloudy | 5 to 10 mph NNE | 15% |
| Wednesday Night | 52°F | Mostly Cloudy | 0 to 5 mph NNE | 8% |
| Thursday | 69°F | Partly Sunny | 5 mph NNE | 3% |
| Thursday Night | 53°F | Mostly Cloudy | 0 to 5 mph NNE | 5% |
| Friday | 73°F | Partly Sunny | 0 to 5 mph NNE | 5% |
| Friday Night | 52°F | Partly Cloudy | 0 to 5 mph NE | 2% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Brook, IN
Last spring frost
Apr 23
First fall frost
Oct 14
Growing season
175 days
Hardiness zone
5b
Explore more for Brook, IN: full frost dates · planting calendar · Indiana frost dates
Climate data from the nearest NOAA station, Kentland, In (9.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.