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Hartland Colony, MT Weather & Growing Conditions

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

Today
70°F
Partly Sunny
Partly sunny, with a high near 70. East northeast wind 6 to 9 mph.

7-day forecast for Hartland Colony

WhenTempForecastWindPrecip
Today 70°F Partly Sunny 6 to 9 mph ENE 0%
Tonight 46°F Mostly Cloudy 8 mph E 0%
Sunday 70°F Sunny 7 to 12 mph SE 0%
Sunday Night 47°F Mostly Clear 9 to 14 mph SE 0%
Monday 74°F Sunny 9 to 13 mph SE 0%
Monday Night 48°F Mostly Clear 5 to 14 mph SE 0%
Tuesday 76°F Sunny 6 mph SSW 0%
Tuesday Night 48°F Mostly Clear 5 mph E 0%
Wednesday 78°F Sunny 6 mph SSE 1%
Wednesday Night 50°F Mostly Clear 6 mph SSE 3%
Thursday 77°F Sunny 6 mph SSW 2%
Thursday Night 50°F Partly Cloudy 5 to 10 mph ESE 10%
Friday 75°F Mostly Sunny 10 mph SE 7%
Friday Night 46°F Slight Chance Light Rain 10 mph NNE 18%

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

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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 Sep 19, 2026.