Bainville, MT Weather & Growing Conditions
Tonight
56°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Mostly cloudy, with a low around 56. Northeast wind 10 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 56°F | Chance Showers And Thunderstorms | 10 to 14 mph NE | 32% |
| Saturday | 65°F | Slight Chance Rain Showers | 14 to 17 mph ENE | 24% |
| Saturday Night | 51°F | Chance Rain Showers | 16 mph E | 39% |
| Sunday | 60°F | Chance Rain Showers | 16 mph ESE | 47% |
| Sunday Night | 49°F | Mostly Cloudy | 13 mph ESE | 2% |
| Monday | 67°F | Mostly Sunny | 10 to 17 mph SE | 2% |
| Monday Night | 50°F | Partly Cloudy | 17 mph SSE | 0% |
| Tuesday | 72°F | Mostly Sunny | 18 mph SSE | 0% |
| Tuesday Night | 53°F | Partly Cloudy | 12 to 18 mph SE | 5% |
| Wednesday | 76°F | Sunny | 13 mph SSE | 8% |
| Wednesday Night | 54°F | Mostly Clear | 9 mph SE | 9% |
| Thursday | 77°F | Sunny | 7 to 10 mph SE | 2% |
| Thursday Night | 55°F | Mostly Clear | 12 mph SE | 3% |
| Friday | 76°F | Mostly Sunny | 12 to 17 mph SE | 2% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Bainville, MT
Last spring frost
May 21
First fall frost
Sep 20
Growing season
120 days
Hardiness zone
4a
Explore more for Bainville, MT: full frost dates · planting calendar · Montana frost dates
Climate data from the nearest NOAA station, Culbertson, Mt (17.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.