Ballantine, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Ballantine, a community in Yellowstone County, Montana.
Today
78°F
Sunny
Sunny. High near 78, with temperatures falling to around 76 in the afternoon. West wind 1 to 5 mph.
7-day forecast for Ballantine
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 78°F | Sunny | 1 to 5 mph W | 0% |
| Tonight | 52°F | Partly Cloudy | 2 to 7 mph E | 1% |
| Wednesday | 88°F | Sunny | 2 to 7 mph W | 0% |
| Wednesday Night | 57°F | Mostly Clear | 2 to 6 mph N | 0% |
| Thursday | 94°F | Sunny | 2 to 8 mph W | 0% |
| Thursday Night | 60°F | Mostly Clear | 3 to 8 mph NNE | 0% |
| Friday | 98°F | Sunny | 2 to 6 mph W | 0% |
| Friday Night | 64°F | Partly Cloudy | 6 to 9 mph N | 0% |
| Saturday | 97°F | Sunny | 7 to 12 mph NW | 0% |
| Saturday Night | 64°F | Mostly Clear | 5 to 10 mph NE | 1% |
| Sunday | 95°F | Mostly Sunny | 5 to 9 mph NNW | 1% |
| Sunday Night | 65°F | Partly Cloudy | 8 to 12 mph NE | 8% |
| Monday | 92°F | Mostly Sunny | 6 to 12 mph NNE | 2% |
| Monday Night | 64°F | Partly Cloudy | 13 mph ENE | 9% |
Forecast source: National Weather Service (api.weather.gov) for Ballantine (45.951, -108.143). Updated through the day.
Growing snapshot for Ballantine
Last spring frost
May 12
First fall frost
Sep 25
Growing season
136 days
Hardiness zone
4b
More local growing data for Ballantine: nearby ZIP 59006 weather · frost dates · planting calendar · Montana frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Huntley Exp Stn, Mt (7.5 mi from Ballantine). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.