Rimrock Colony, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Rimrock Colony, a community in Toole County, Montana.
Overnight
42°F
Mostly Clear
Mostly clear, with a low around 42. West southwest wind around 6 mph.
7-day forecast for Rimrock Colony
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 42°F | Mostly Clear | 6 mph WSW | 0% |
| Tuesday | 73°F | Sunny | 7 mph WSW | 1% |
| Tuesday Night | 50°F | Mostly Clear | 3 to 12 mph SW | 1% |
| Wednesday | 78°F | Mostly Sunny | 7 to 12 mph WNW | 0% |
| Wednesday Night | 52°F | Mostly Clear | 7 to 10 mph SW | 0% |
| Thursday | 84°F | Sunny | 9 to 14 mph NW | 0% |
| Thursday Night | 53°F | Mostly Clear | 6 to 13 mph NE | 0% |
| Friday | 88°F | Sunny | 5 to 21 mph W | 0% |
| Friday Night | 55°F | Mostly Clear | 16 mph NW | 0% |
| Saturday | 84°F | Sunny | 8 to 14 mph NW | 1% |
| Saturday Night | 55°F | Partly Cloudy | 14 mph N | 1% |
| Sunday | 79°F | Mostly Sunny | 9 to 15 mph NNW | 1% |
| Sunday Night | 53°F | Partly Cloudy | 12 mph NNE | 14% |
| Monday | 77°F | Mostly Sunny | 8 to 13 mph NNE | 13% |
Forecast source: National Weather Service (api.weather.gov) for Rimrock Colony (48.895, -112.095). Updated through the day.
Growing snapshot for Rimrock Colony
Last spring frost
May 17
First fall frost
Sep 25
Growing season
129 days
Hardiness zone
4a
More local growing data for Rimrock Colony: nearby ZIP 59454 weather · frost dates · planting calendar · Montana frost dates
Nearby towns & communities
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Climate data from the nearest NOAA station, Sunburst 8 E, Mt (14.3 mi from Rimrock Colony). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.