Rockport Colony, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Rockport Colony, a community in Teton County, Montana.
Today
48°F
Sunny
Sunny. High near 48, with temperatures falling to around 42 in the afternoon. North wind around 3 mph.
7-day forecast for Rockport Colony
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 48°F | Sunny | 3 mph N | 0% |
| Tonight | 31°F | Mostly Clear | 5 mph SW | 0% |
| Thursday | 48°F | Partly Sunny | 5 to 13 mph WSW | 0% |
| Thursday Night | 33°F | Partly Cloudy | 9 to 14 mph WSW | 0% |
| Friday | 50°F | Mostly Sunny | 12 mph WSW | 0% |
| Friday Night | 38°F | Mostly Cloudy | 8 to 17 mph WSW | 1% |
| Saturday | 56°F | Partly Sunny | 3 to 8 mph SW | 1% |
| Saturday Night | 39°F | Mostly Cloudy | 3 to 7 mph SW | 0% |
| Sunday | 57°F | Partly Sunny | 7 to 17 mph SW | 3% |
| Sunday Night | 36°F | Mostly Cloudy | 3 to 13 mph W | 3% |
| Monday | 51°F | Partly Sunny | 5 mph SW | 2% |
| Monday Night | 37°F | Mostly Cloudy | 6 mph SW | 1% |
| Tuesday | 53°F | Partly Sunny | 6 to 10 mph SW | 4% |
| Tuesday Night | 38°F | Mostly Cloudy | 6 to 9 mph WSW | 4% |
Forecast source: National Weather Service (api.weather.gov) for Rockport Colony (48.067, -112.476). Updated through the day.
Growing snapshot for Rockport Colony
Last spring frost
Jun 9
First fall frost
Sep 3
Growing season
86 days
Hardiness zone
4b
More local growing data for Rockport Colony: nearby ZIP 59467 weather · frost dates · planting calendar · Montana frost dates
Nearby towns & communities
Augusta
Bynum
Choteau
Dutton
Gilman
Miller Colony
New Miami Colony
New Rockport Colony
Pendroy
Power
Climate data from the nearest NOAA station, Blackleaf, Mt (4.2 mi from Rockport Colony). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.