Brooks, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Brooks, a community in Fergus County, Montana.
Overnight
32°F
Clear
Clear, with a low around 32. South wind around 1 mph.
7-day forecast for Brooks
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 32°F | Clear | 1 mph S | 0% |
| Wednesday | 48°F | Sunny | 3 mph NW | 0% |
| Wednesday Night | 32°F | Mostly Clear | 5 mph SSE | 0% |
| Thursday | 54°F | Mostly Sunny | 6 mph WSW | 2% |
| Thursday Night | 31°F | Partly Cloudy | 3 to 7 mph WSW | 2% |
| Friday | 54°F | Sunny | 6 to 10 mph SW | 0% |
| Friday Night | 38°F | Partly Cloudy | 7 to 10 mph SW | 0% |
| Saturday | 58°F | Sunny | 3 to 8 mph SW | 0% |
| Saturday Night | 40°F | Partly Cloudy | 3 to 8 mph S | 0% |
| Sunday | 65°F | Mostly Sunny | 10 mph SW | 2% |
| Sunday Night | 39°F | Mostly Cloudy | 3 to 8 mph W | 2% |
| Monday | 55°F | Mostly Sunny | 5 mph WSW | 2% |
| Monday Night | 38°F | Partly Cloudy | 5 mph S | 2% |
| Tuesday | 59°F | Mostly Sunny | 5 to 8 mph SW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Brooks (47.205, -109.421). Updated through the day.
Growing snapshot for Brooks
Last spring frost
May 14
First fall frost
Sep 28
Growing season
135 days
Hardiness zone
4b
More local growing data for Brooks: nearby ZIP 59457 weather · frost dates · planting calendar · Montana frost dates
Nearby towns & communities
Ayers Ranch Colony
Coffee Creek
Deerfield Colony
Denton
Fords Creek Colony
Grass Range
Hilger
King Ranch Colony
Lewistown
Lewistown Heights
Moore
Roy
Warm Spring Creek
Winifred
Climate data from the nearest NOAA station, Lewistown, Mt (6.7 mi from Brooks). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.