Glacier Colony, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Glacier Colony, a community in Toole County, Montana.
Tonight
47°F
Mostly Cloudy
Mostly cloudy, with a low around 47. North northeast wind 5 to 9 mph.
7-day forecast for Glacier Colony
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 47°F | Mostly Cloudy | 5 to 9 mph NNE | 1% |
| Saturday | 66°F | Mostly Sunny | 5 to 12 mph E | 0% |
| Saturday Night | 45°F | Partly Cloudy | 8 to 12 mph SSE | 0% |
| Sunday | 69°F | Sunny | 8 to 13 mph S | 0% |
| Sunday Night | 46°F | Mostly Clear | 8 to 12 mph SSE | 0% |
| Monday | 73°F | Sunny | 7 to 10 mph S | 0% |
| Monday Night | 48°F | Mostly Clear | 10 mph WSW | 0% |
| Tuesday | 69°F | Mostly Sunny | 7 to 10 mph WNW | 0% |
| Tuesday Night | 48°F | Partly Cloudy | 8 mph S | 0% |
| Wednesday | 70°F | Sunny | 8 to 14 mph WSW | 0% |
| Wednesday Night | 47°F | Partly Cloudy | 8 to 12 mph WSW | 3% |
| Thursday | 69°F | Mostly Sunny | 9 mph SSW | 3% |
| Thursday Night | 48°F | Partly Cloudy | 10 mph S | 1% |
| Friday | 69°F | Mostly Sunny | 10 mph SSW | 3% |
Forecast source: National Weather Service (api.weather.gov) for Glacier Colony (48.830, -112.215). Updated through the day.
Growing snapshot for Glacier Colony
Last spring frost
May 17
First fall frost
Sep 25
Growing season
129 days
Hardiness zone
4a
More local growing data for Glacier Colony: nearby ZIP 59454 weather · frost dates · planting calendar · Montana frost dates
Nearby towns & communities
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Rimrock Colony
Santa Rita
Shelby
Sunburst
Sweet Grass
Climate data from the nearest NOAA station, Sunburst 8 E, Mt (14.3 mi from Glacier Colony). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.