Miller Colony, MT Weather & Growing Conditions
Tonight
45°F
Partly Cloudy
Partly cloudy, with a low around 45. South southwest wind around 6 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 45°F | Partly Cloudy | 6 mph SSW | 1% |
| Sunday | 70°F | Sunny | 5 mph S | 0% |
| Sunday Night | 47°F | Mostly Clear | 3 mph SW | 0% |
| Monday | 75°F | Sunny | 5 mph WSW | 0% |
| Monday Night | 49°F | Mostly Clear | 5 mph W | 0% |
| Tuesday | 74°F | Sunny | 5 mph WSW | 0% |
| Tuesday Night | 51°F | Partly Cloudy | 3 mph W | 0% |
| Wednesday | 72°F | Mostly Sunny | 2 to 7 mph SW | 2% |
| Wednesday Night | 49°F | Partly Cloudy | 5 mph W | 6% |
| Thursday | 72°F | Mostly Sunny | 2 to 7 mph SSW | 2% |
| Thursday Night | 50°F | Partly Cloudy | 1 to 5 mph W | 12% |
| Friday | 68°F | Mostly Sunny | 1 to 7 mph SSW | 12% |
| Friday Night | 45°F | Mostly Cloudy then Slight Chance Light Rain | 6 mph W | 16% |
| Saturday | 57°F | Slight Chance Light Rain | 2 to 6 mph WNW | 21% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Miller Colony, MT
Last spring frost
May 16
First fall frost
Sep 27
Growing season
133 days
Hardiness zone
4b
Explore more for Miller Colony, MT: full frost dates · planting calendar · Montana frost dates
Climate data from the nearest NOAA station, Bynum 4 Sse, Mt (11.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.