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.
Today
79°F
Sunny
Sunny, with a high near 79. South southeast wind 0 to 7 mph.
7-day forecast for Fair Haven Colony
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 79°F | Sunny | 0 to 7 mph SSE | 0% |
| Tonight | 47°F | Mostly Clear | 2 to 8 mph SSW | 1% |
| Wednesday | 87°F | Sunny | 5 mph WSW | 0% |
| Wednesday Night | 51°F | Mostly Clear | 3 to 7 mph WSW | 0% |
| Thursday | 95°F | Sunny | 2 to 9 mph W | 0% |
| Thursday Night | 55°F | Mostly Clear | 3 to 9 mph W | 0% |
| Friday | 99°F | Sunny | 2 to 18 mph WSW | 0% |
| Friday Night | 56°F | Mostly Clear | 7 to 20 mph W | 0% |
| Saturday | 95°F | Sunny | 3 to 10 mph WSW | 0% |
| Saturday Night | 57°F | Mostly Clear | 5 to 14 mph WNW | 1% |
| Sunday | 91°F | Sunny | 2 to 8 mph NW | 0% |
| Sunday Night | 55°F | Partly Cloudy | 5 to 13 mph N | 2% |
| Monday | 88°F | Sunny | 2 to 7 mph N | 4% |
| Monday Night | 55°F | Mostly Clear | 6 to 10 mph NNE | 8% |
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
4a
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
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 Aug 4, 2026.