Ballantine, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Ballantine, a community in Yellowstone County, Montana.
Tonight
31°F
Patchy Fog
Patchy fog after 11pm. Mostly clear, with a low around 31. Southwest wind 1 to 5 mph.
7-day forecast for Ballantine
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 31°F | Patchy Fog | 1 to 5 mph SW | 0% |
| Wednesday | 52°F | Patchy Fog then Sunny | 2 to 7 mph WNW | 0% |
| Wednesday Night | 32°F | Patchy Fog | 1 to 5 mph SSE | 0% |
| Thursday | 57°F | Patchy Fog then Mostly Sunny | 2 to 6 mph WSW | 1% |
| Thursday Night | 33°F | Partly Cloudy | 5 mph WSW | 4% |
| Friday | 57°F | Sunny | 5 to 8 mph WSW | 3% |
| Friday Night | 38°F | Partly Cloudy | 5 to 9 mph WSW | 3% |
| Saturday | 61°F | Sunny | 3 to 9 mph WSW | 0% |
| Saturday Night | 37°F | Mostly Clear | 5 mph SW | 0% |
| Sunday | 67°F | Mostly Sunny | 5 to 8 mph WSW | 0% |
| Sunday Night | 38°F | Partly Cloudy | 6 mph W | 0% |
| Monday | 59°F | Mostly Sunny | 5 mph SSW | 0% |
| Monday Night | 37°F | Mostly Cloudy | 5 mph SSW | 1% |
| Tuesday | 63°F | Mostly Sunny | 6 mph WSW | 1% |
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 Nov 4, 2026.