Ballantine, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Ballantine, a community in Yellowstone County, Montana.
Overnight
56°F
Showers And Thunderstorms
Showers and thunderstorms before 3am, then patchy fog and showers and thunderstorms. Cloudy. Low around 56, with temperatures rising to around 58 overnight. North northwest wind around 8 mph. Chance of precipitation is 90%.
7-day forecast for Ballantine
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 56°F | Showers And Thunderstorms | 8 mph NNW | 94% |
| Saturday | 63°F | Patchy Fog | 8 to 12 mph NNE | 100% |
| Saturday Night | 51°F | Patchy Fog | 10 mph NNE | 96% |
| Sunday | 64°F | Rain Showers | 8 mph N | 79% |
| Sunday Night | 49°F | Slight Chance Rain Showers then Mostly Cloudy | 5 mph E | 15% |
| Monday | 73°F | Mostly Sunny | 5 mph SSE | 0% |
| Monday Night | 49°F | Mostly Clear | 5 mph SSE | 0% |
| Tuesday | 79°F | Sunny | 3 mph SW | 0% |
| Tuesday Night | 52°F | Partly Cloudy | 3 mph SSE | 3% |
| Wednesday | 81°F | Mostly Sunny | 5 mph SW | 5% |
| Wednesday Night | 52°F | Mostly Clear | 3 mph SSW | 6% |
| Thursday | 82°F | Sunny | 5 mph SW | 1% |
| Thursday Night | 52°F | Mostly Clear | 3 mph SE | 3% |
| Friday | 82°F | Mostly Sunny | 5 mph SW | 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 Sep 19, 2026.