North Harlem Colony, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for North Harlem Colony, a community in Blaine County, Montana.
Overnight
40°F
Mostly Clear
Mostly clear, with a low around 40. West northwest wind around 6 mph.
7-day forecast for North Harlem Colony
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 40°F | Mostly Clear | 6 mph WNW | 0% |
| Tuesday | 77°F | Sunny | 7 to 14 mph WNW | 1% |
| Tuesday Night | 48°F | Partly Cloudy | 2 to 13 mph W | 1% |
| Wednesday | 85°F | Mostly Sunny | 3 to 15 mph WNW | 0% |
| Wednesday Night | 49°F | Partly Cloudy | 3 to 15 mph N | 0% |
| Thursday | 91°F | Sunny | 3 to 16 mph NNW | 0% |
| Thursday Night | 53°F | Mostly Clear | 8 to 15 mph NNE | 0% |
| Friday | 93°F | Sunny | 7 to 16 mph ESE | 0% |
| Friday Night | 55°F | Mostly Clear | 15 mph NE | 0% |
| Saturday | 90°F | Sunny | 15 mph ENE | 0% |
| Saturday Night | 55°F | Partly Cloudy | 10 to 15 mph NE | 2% |
| Sunday | 88°F | Mostly Sunny | 15 mph NE | 2% |
| Sunday Night | 54°F | Partly Cloudy then Slight Chance Rain Showers | 14 to 17 mph NE | 15% |
| Monday | 85°F | Mostly Sunny | 14 mph ENE | 14% |
Forecast source: National Weather Service (api.weather.gov) for North Harlem Colony (48.584, -108.756). Updated through the day.
Growing snapshot for North Harlem Colony
Last spring frost
May 16
First fall frost
Sep 22
Growing season
128 days
Hardiness zone
4a
More local growing data for North Harlem Colony: nearby ZIP 59526 weather · frost dates · planting calendar · Montana frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Ft Belknap 2 Sw, Mt (3.6 mi from North Harlem Colony). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.