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
73°F
Mostly Sunny
Mostly sunny, with a high near 73. East northeast wind 2 to 7 mph.
7-day forecast for Rockport Colony
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 73°F | Mostly Sunny | 2 to 7 mph ENE | 1% |
| Tonight | 49°F | Mostly Clear | 3 to 7 mph WSW | 2% |
| Wednesday | 81°F | Sunny | 9 mph WNW | 0% |
| Wednesday Night | 52°F | Mostly Clear | 7 mph W | 0% |
| Thursday | 87°F | Sunny | 7 to 10 mph WNW | 0% |
| Thursday Night | 55°F | Mostly Clear | 3 to 12 mph W | 0% |
| Friday | 90°F | Sunny | 3 to 18 mph WNW | 0% |
| Friday Night | 56°F | Clear | 9 to 16 mph W | 0% |
| Saturday | 87°F | Sunny | 6 to 13 mph W | 0% |
| Saturday Night | 55°F | Mostly Clear | 6 to 13 mph WNW | 0% |
| Sunday | 82°F | Mostly Sunny | 7 to 10 mph N | 1% |
| Sunday Night | 53°F | Partly Cloudy | 5 to 12 mph NNW | 5% |
| Monday | 80°F | Mostly Sunny | 8 mph NNE | 11% |
| Monday Night | 52°F | Mostly Clear | 3 to 8 mph N | 9% |
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 Aug 4, 2026.