Harman US

Jackson, MT Weather & Growing Conditions

Today
45°F
Mostly Sunny
Mostly sunny. High near 45, with temperatures falling to around 39 in the afternoon. West wind around 3 mph.

7-day forecast

WhenTempForecastWindPrecip
Today 45°F Mostly Sunny 3 mph W 0%
Tonight 25°F Mostly Clear 2 to 7 mph SE 0%
Thursday 39°F Mostly Cloudy 3 to 7 mph WSW 12%
Thursday Night 23°F Partly Cloudy 6 mph WSW 12%
Friday 42°F Mostly Sunny 6 mph SW 0%
Friday Night 29°F Partly Cloudy 6 mph SW 0%
Saturday 49°F Mostly Sunny 5 mph SSW 0%
Saturday Night 30°F Partly Cloudy 5 to 13 mph SSE 0%
Sunday 52°F Mostly Sunny 6 to 12 mph S 3%
Sunday Night 30°F Partly Cloudy 8 mph WSW 5%
Monday 48°F Mostly Sunny 6 mph SSW 2%
Monday Night 31°F Mostly Cloudy 7 mph S 2%
Tuesday 48°F Mostly Sunny 6 mph SW 5%
Tuesday Night 31°F Partly Cloudy 3 to 8 mph SSW 9%

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

Growing snapshot for Jackson, MT

Growing season
51 days
Hardiness zone
5a

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

Climate data from the nearest NOAA station, Jackson, Mt (3.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.