Harman US

Havre, MT Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Havre, a city in Hill County, Montana.

Overnight
29°F
Patchy Fog
Patchy fog. Mostly clear, with a low around 29. West southwest wind around 1 mph.

7-day forecast for Havre

WhenTempForecastWindPrecip
Overnight 29°F Patchy Fog 1 mph WSW 0%
Wednesday 44°F Patchy Fog then Sunny 0 to 5 mph W 0%
Wednesday Night 28°F Partly Cloudy 2 mph S 0%
Thursday 51°F Mostly Sunny 2 to 13 mph SW 0%
Thursday Night 34°F Mostly Clear 13 mph WSW 1%
Friday 53°F Sunny 12 to 17 mph SW 0%
Friday Night 38°F Partly Cloudy 14 to 18 mph SW 0%
Saturday 57°F Sunny 3 to 14 mph SW 0%
Saturday Night 37°F Partly Cloudy 6 mph SSW 0%
Sunday 62°F Partly Sunny 3 to 20 mph WSW 1%
Sunday Night 38°F Partly Cloudy 8 to 23 mph W 1%
Monday 53°F Mostly Sunny 5 to 8 mph WSW 1%
Monday Night 36°F Mostly Cloudy 3 to 7 mph SSW 1%
Tuesday 59°F Mostly Sunny 7 to 15 mph SW 0%

Forecast source: National Weather Service (api.weather.gov) for Havre (48.542, -109.678). Updated through the day.

Growing snapshot for Havre

Last spring frost
May 15
First fall frost
Sep 23
Growing season
129 days
Hardiness zone
3b

More local growing data for Havre: 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 Havre). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.