Brooks, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Brooks, a community in Fergus County, Montana.
Today
73°F
Sunny
Sunny, with a high near 73. West wind around 6 mph.
7-day forecast for Brooks
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 73°F | Sunny | 6 mph W | 0% |
| Tonight | 49°F | Partly Cloudy | 6 mph ESE | 1% |
| Wednesday | 81°F | Sunny | 5 to 9 mph W | 0% |
| Wednesday Night | 53°F | Mostly Clear | 3 to 9 mph SSW | 0% |
| Thursday | 89°F | Sunny | 5 to 12 mph W | 0% |
| Thursday Night | 57°F | Mostly Clear | 5 to 12 mph E | 0% |
| Friday | 91°F | Sunny | 5 to 14 mph WSW | 0% |
| Friday Night | 59°F | Mostly Clear | 6 to 10 mph W | 0% |
| Saturday | 89°F | Sunny | 6 to 13 mph W | 0% |
| Saturday Night | 59°F | Mostly Clear | 6 to 9 mph E | 1% |
| Sunday | 87°F | Sunny | 5 to 12 mph NNW | 1% |
| Sunday Night | 58°F | Partly Cloudy | 5 to 10 mph E | 9% |
| Monday | 84°F | Sunny | 3 to 10 mph ENE | 13% |
| Monday Night | 57°F | Chance Rain Showers | 6 to 12 mph E | 25% |
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 Aug 4, 2026.