Ballantine, MT Weather & Growing Conditions
Today
78°F
Sunny
Sunny. High near 78, with temperatures falling to around 76 in the afternoon. North northwest wind 1 to 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 78°F | Sunny | 1 to 5 mph NNW | 0% |
| Tonight | 53°F | Partly Cloudy | 2 to 8 mph ESE | 1% |
| Wednesday | 88°F | Sunny | 2 to 7 mph W | 0% |
| Wednesday Night | 57°F | Mostly Clear | 3 to 7 mph N | 0% |
| Thursday | 94°F | Sunny | 3 to 8 mph W | 0% |
| Thursday Night | 61°F | Mostly Clear | 3 to 9 mph NNE | 0% |
| Friday | 99°F | Sunny | 6 mph W | 0% |
| Friday Night | 64°F | Mostly Clear | 6 to 10 mph N | 0% |
| Saturday | 98°F | Sunny | 8 to 12 mph NW | 0% |
| Saturday Night | 65°F | Mostly Clear | 6 to 12 mph NE | 1% |
| Sunday | 96°F | Mostly Sunny | 6 to 9 mph N | 1% |
| Sunday Night | 66°F | Partly Cloudy | 12 mph NE | 8% |
| Monday | 92°F | Mostly Sunny | 8 to 12 mph NNE | 3% |
| Monday Night | 65°F | Partly Cloudy | 12 to 15 mph ENE | 9% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Ballantine, MT
Last spring frost
May 12
First fall frost
Sep 25
Growing season
136 days
Hardiness zone
4b
Explore more for Ballantine, MT: full frost dates · planting calendar · Montana frost dates
Climate data from the nearest NOAA station, Huntley Exp Stn, Mt (7.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.