Acton, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Acton, a community in Yellowstone County, Montana.
Tonight
30°F
Patchy Fog
Patchy fog after 11pm. Mostly clear. Low around 30, with temperatures rising to around 32 overnight. West southwest wind around 7 mph.
7-day forecast for Acton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 30°F | Patchy Fog | 7 mph WSW | 0% |
| Wednesday | 51°F | Patchy Fog then Sunny | 2 to 8 mph NW | 0% |
| Wednesday Night | 32°F | Patchy Fog | 1 to 12 mph WSW | 0% |
| Thursday | 55°F | Mostly Sunny | 3 to 14 mph WSW | 2% |
| Thursday Night | 33°F | Partly Cloudy | 3 to 9 mph W | 4% |
| Friday | 54°F | Sunny | 8 to 14 mph WSW | 4% |
| Friday Night | 39°F | Partly Cloudy | 8 to 17 mph WSW | 4% |
| Saturday | 58°F | Sunny | 6 to 17 mph WSW | 0% |
| Saturday Night | 39°F | Partly Cloudy | 6 to 20 mph SW | 0% |
| Sunday | 62°F | Mostly Sunny | 12 to 21 mph WSW | 0% |
| Sunday Night | 39°F | Partly Cloudy | 7 to 12 mph W | 0% |
| Monday | 55°F | Mostly Sunny | 3 to 7 mph SSW | 0% |
| Monday Night | 38°F | Mostly Cloudy | 3 to 9 mph SSE | 1% |
| Tuesday | 59°F | Mostly Sunny | 7 to 10 mph W | 1% |
Forecast source: National Weather Service (api.weather.gov) for Acton (45.929, -108.679). Updated through the day.
Growing snapshot for Acton
Last spring frost
May 4
First fall frost
Oct 7
Growing season
156 days
Hardiness zone
5a
More local growing data for Acton: nearby ZIP 59002 weather · frost dates · planting calendar · Montana frost dates
Nearby towns & communities
Ballantine
Billings
Broadview
Custer
Huntley
Laurel
Lockwood
Mountain View Colony
Nibbe
Shepherd
Worden
Climate data from the nearest NOAA station, Billings Logan Intl Ap, Mt (16.1 mi from Acton). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.