Fair Haven Colony, MT Weather & Growing Conditions

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

This Afternoon

74°F

Partly Sunny

Partly sunny, with a high near 74. North northeast wind around 10 mph.

7-day forecast for Fair Haven Colony

When	Temp	Forecast	Wind	Precip
This Afternoon	74°F	Partly Sunny	10 mph NNE	6%
Tonight	51°F	Slight Chance Showers And Thunderstorms then Chance Light Rain	3 to 10 mph N	39%
Saturday	66°F	Chance Light Rain	5 to 8 mph NNE	30%
Saturday Night	47°F	Mostly Cloudy then Patchy Fog	1 to 7 mph N	8%
Sunday	75°F	Patchy Fog then Mostly Sunny	3 mph S	1%
Sunday Night	48°F	Mostly Clear	2 to 7 mph SSE	0%
Monday	80°F	Sunny	2 to 6 mph SSW	0%
Monday Night	49°F	Mostly Clear	6 mph SW	0%
Tuesday	79°F	Sunny	5 mph WSW	0%
Tuesday Night	50°F	Mostly Clear	3 to 8 mph S	0%
Wednesday	80°F	Sunny	1 to 9 mph SW	0%
Wednesday Night	50°F	Mostly Clear	2 to 8 mph SW	3%
Thursday	81°F	Sunny	1 to 6 mph SSW	1%
Thursday Night	50°F	Partly Cloudy	5 to 8 mph S	2%

Forecast source: National Weather Service (api.weather.gov) for Fair Haven Colony (47.404, -111.629). Updated through the day.

Growing snapshot for Fair Haven Colony

Last spring frost

Jun 2

First fall frost

Sep 10

Growing season

96 days

Hardiness zone

More local growing data for Fair Haven Colony: nearby ZIP 59485 weather · frost dates · planting calendar · Montana frost dates

Nearby towns & communities

Belt Big Stone Colony Black Eagle Cascade Cascade Colony Centerville 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 (8.5 mi from Fair Haven Colony). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.