Harman US

Lonepine, MT Weather & Growing Conditions

Today
72°F
Sunny
Sunny, with a high near 72. East wind 1 to 5 mph.

7-day forecast

WhenTempForecastWindPrecip
Today 72°F Sunny 1 to 5 mph E 2%
Tonight 50°F Partly Cloudy 3 mph SW 2%
Sunday 74°F Sunny 0 to 3 mph SSW 0%
Sunday Night 51°F Mostly Clear 3 mph NNW 0%
Monday 76°F Sunny 1 to 5 mph SSW 0%
Monday Night 52°F Mostly Clear 5 mph W 0%
Tuesday 75°F Sunny 1 to 5 mph SSW 0%
Tuesday Night 52°F Partly Cloudy 1 to 5 mph W 1%
Wednesday 73°F Mostly Sunny 1 to 6 mph SW 1%
Wednesday Night 51°F Partly Cloudy 2 to 7 mph WSW 2%
Thursday 72°F Mostly Sunny 1 to 5 mph SSW 1%
Thursday Night 52°F Partly Cloudy 5 mph WNW 6%
Friday 69°F Partly Sunny 1 to 6 mph WSW 9%
Friday Night 48°F Slight Chance Light Rain 7 mph W 20%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Lonepine, MT

Last spring frost
May 15
First fall frost
Sep 28
Growing season
134 days
Hardiness zone
6a

Explore more for Lonepine, MT: full frost dates · planting calendar · Montana frost dates

Climate data from the nearest NOAA station, Skq Dam, Mt (21 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.