Hartland Colony, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Hartland Colony, a community in Hill County, Montana.
Overnight
29°F
Patchy Fog
Patchy fog. Mostly clear, with a low around 29. North wind around 2 mph.
7-day forecast for Hartland Colony
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 29°F | Patchy Fog | 2 mph N | 0% |
| Wednesday | 44°F | Patchy Fog then Sunny | 3 mph NW | 0% |
| Wednesday Night | 28°F | Partly Cloudy | 2 mph E | 0% |
| Thursday | 49°F | Mostly Sunny | 2 to 12 mph SSW | 0% |
| Thursday Night | 32°F | Mostly Clear | 6 to 12 mph WSW | 0% |
| Friday | 51°F | Mostly Sunny | 6 to 14 mph SW | 0% |
| Friday Night | 36°F | Partly Cloudy | 9 to 13 mph WSW | 0% |
| Saturday | 54°F | Sunny | 3 to 9 mph SW | 0% |
| Saturday Night | 35°F | Partly Cloudy | 5 mph S | 0% |
| Sunday | 61°F | Partly Sunny | 3 to 17 mph SW | 0% |
| Sunday Night | 36°F | Partly Cloudy | 7 to 17 mph W | 0% |
| Monday | 52°F | Mostly Sunny | 7 mph W | 2% |
| Monday Night | 34°F | Mostly Cloudy | 5 mph S | 2% |
| Tuesday | 56°F | Mostly Sunny | 5 to 10 mph SW | 2% |
Forecast source: National Weather Service (api.weather.gov) for Hartland Colony (48.952, -109.448). Updated through the day.
Growing snapshot for Hartland Colony
Last spring frost
May 15
First fall frost
Sep 23
Growing season
129 days
Hardiness zone
3b
More local growing data for Hartland Colony: nearby ZIP 59501 weather · frost dates · planting calendar · Montana frost dates
Nearby towns & communities
Azure
Beaver Creek
Big Sandy
Boneau
Box Elder
East End Colony
Gildford
Gildford Colony
Havre
Havre North
Herron
Hilldale Colony
Hingham
Inverness
Joplin
Kremlin
Laredo
Parker School
Rocky Boy West
Rocky Boy's Agency
Rudyard
Saddle Butte
Sangrey
St. Pierre
West Havre
Climate data from the nearest NOAA station, Havre City Co Ap, Mt (10.2 mi from Hartland Colony). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.