Rockport Colony, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Rockport Colony, a community in Teton County, Montana.
This Afternoon
68°F
Partly Sunny
Partly sunny, with a high near 68. North northeast wind around 9 mph.
7-day forecast for Rockport Colony
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 68°F | Partly Sunny | 9 mph NNE | 8% |
| Tonight | 49°F | Mostly Cloudy | 3 to 7 mph NNW | 9% |
| Saturday | 65°F | Partly Sunny | 7 mph ENE | 12% |
| Saturday Night | 47°F | Partly Cloudy | 3 to 7 mph S | 0% |
| Sunday | 71°F | Sunny | 6 mph S | 0% |
| Sunday Night | 48°F | Mostly Clear | 2 to 8 mph SSW | 0% |
| Monday | 75°F | Sunny | 2 to 6 mph SW | 0% |
| Monday Night | 50°F | Mostly Clear | 6 mph WSW | 0% |
| Tuesday | 71°F | Mostly Sunny | 6 mph WSW | 0% |
| Tuesday Night | 50°F | Partly Cloudy | 6 mph WSW | 1% |
| Wednesday | 72°F | Sunny | 3 to 7 mph WSW | 1% |
| Wednesday Night | 50°F | Partly Cloudy | 6 mph WSW | 2% |
| Thursday | 73°F | Mostly Sunny | 3 to 7 mph SSW | 2% |
| Thursday Night | 51°F | Partly Cloudy | 3 to 7 mph SSW | 1% |
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 Sep 19, 2026.