Bainville, MT Weather & Growing Conditions
Today
69°F
Sunny
Sunny, with a high near 69. West northwest wind 13 to 18 mph, with gusts as high as 28 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 69°F | Sunny | 13 to 18 mph WNW | 0% |
| Tonight | 50°F | Mostly Clear | 5 to 14 mph WSW | 2% |
| Wednesday | 80°F | Partly Sunny | 10 to 20 mph W | 0% |
| Wednesday Night | 54°F | Partly Cloudy | 5 to 15 mph WSW | 1% |
| Thursday | 85°F | Sunny | 6 to 13 mph WNW | 0% |
| Thursday Night | 55°F | Mostly Clear | 8 to 13 mph NNW | 0% |
| Friday | 82°F | Sunny | 9 mph NE | 1% |
| Friday Night | 57°F | Mostly Clear | 9 to 13 mph ENE | 2% |
| Saturday | 84°F | Sunny | 13 mph ENE | 1% |
| Saturday Night | 58°F | Partly Cloudy | 15 mph NE | 1% |
| Sunday | 83°F | Partly Sunny | 13 to 16 mph ENE | 4% |
| Sunday Night | 58°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 14 to 17 mph ENE | 17% |
| Monday | 80°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 13 to 16 mph ENE | 18% |
| Monday Night | 57°F | Chance Showers And Thunderstorms | 16 mph ENE | 27% |
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 Aug 4, 2026.