Cascade Colony, MT Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Cascade Colony, a community in Cascade County, Montana.

Today

65°F

Slight Chance Light Rain then Cloudy

A slight chance of rain before 11am. Cloudy, with a high near 65. Northeast wind 5 to 8 mph. Chance of precipitation is 20%.

7-day forecast for Cascade Colony

When	Temp	Forecast	Wind	Precip
Today	65°F	Slight Chance Light Rain then Cloudy	5 to 8 mph NE	22%
Tonight	47°F	Mostly Cloudy	3 to 7 mph S	3%
Sunday	72°F	Mostly Sunny	3 to 7 mph S	0%
Sunday Night	47°F	Mostly Clear	7 mph S	0%
Monday	77°F	Sunny	6 to 9 mph SSW	0%
Monday Night	49°F	Mostly Clear	8 mph SW	0%
Tuesday	77°F	Sunny	7 mph WSW	0%
Tuesday Night	50°F	Mostly Clear	5 to 8 mph SSW	0%
Wednesday	78°F	Sunny	5 to 9 mph SSW	1%
Wednesday Night	51°F	Mostly Clear	5 to 9 mph SW	3%
Thursday	78°F	Sunny	5 to 10 mph SSW	2%
Thursday Night	51°F	Partly Cloudy	5 to 8 mph SSW	5%
Friday	74°F	Mostly Sunny	5 to 12 mph SSW	6%
Friday Night	48°F	Slight Chance Light Rain	10 mph WNW	24%

Forecast source: National Weather Service (api.weather.gov) for Cascade Colony (47.441, -111.818). Updated through the day.

Growing snapshot for Cascade Colony

Last spring frost

Jun 2

First fall frost

Sep 10

Growing season

96 days

Hardiness zone

More local growing data for Cascade Colony: nearby ZIP 59483 weather · frost dates · planting calendar · Montana frost dates

Nearby towns & communities

Belt Big Stone Colony Black Eagle Cascade Centerville Fair Haven Colony Fairfield Fort Shaw Gibson Flats Great Falls Hardy Malmstrom AFB Monarch Neihart Pleasant Valley Colony Riceville Sand Coulee Simms Stockett Sun Prairie Sun River Tracy Ulm Vaughn

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Climate data from the nearest NOAA station, Sun Rvr 4 S, Mt (0.9 mi from Cascade Colony). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.