Acton, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Acton, a community in Yellowstone County, Montana.
Today
74°F
Sunny
Sunny, with a high near 74. East southeast wind 2 to 7 mph.
7-day forecast for Acton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 74°F | Sunny | 2 to 7 mph ESE | 0% |
| Tonight | 51°F | Partly Cloudy | 3 to 8 mph NE | 1% |
| Wednesday | 84°F | Sunny | 5 to 8 mph W | 0% |
| Wednesday Night | 55°F | Mostly Clear | 5 to 8 mph NNW | 0% |
| Thursday | 91°F | Sunny | 5 to 9 mph W | 0% |
| Thursday Night | 59°F | Mostly Clear | 5 to 12 mph N | 0% |
| Friday | 97°F | Sunny | 7 mph WSW | 0% |
| Friday Night | 62°F | Mostly Clear | 8 to 12 mph NNW | 0% |
| Saturday | 94°F | Sunny | 13 mph NW | 0% |
| Saturday Night | 63°F | Mostly Clear | 8 to 13 mph NNE | 1% |
| Sunday | 91°F | Sunny | 7 to 10 mph N | 1% |
| Sunday Night | 63°F | Partly Cloudy | 12 to 15 mph NE | 7% |
| Monday | 88°F | Mostly Sunny | 12 mph N | 1% |
| Monday Night | 62°F | Partly Cloudy | 13 to 17 mph NE | 9% |
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
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Huntley
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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 Aug 4, 2026.