Augusta, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Augusta, a community in Teton County, Montana.
Tonight
52°F
Chance Light Rain
A chance of rain. Cloudy, with a low around 52. North northwest wind around 6 mph. Chance of precipitation is 30%.
7-day forecast for Augusta
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 52°F | Chance Light Rain | 6 mph NNW | 33% |
| Saturday | 65°F | Chance Light Rain | 7 mph NNE | 30% |
| Saturday Night | 48°F | Mostly Cloudy | 2 to 6 mph SSW | 2% |
| Sunday | 74°F | Sunny | 5 mph S | 0% |
| Sunday Night | 48°F | Mostly Clear | 2 to 6 mph SSW | 0% |
| Monday | 78°F | Sunny | 2 to 6 mph SW | 0% |
| Monday Night | 51°F | Mostly Clear | 7 mph WSW | 0% |
| Tuesday | 76°F | Sunny | 5 mph WSW | 0% |
| Tuesday Night | 51°F | Partly Cloudy | 5 mph WSW | 1% |
| Wednesday | 76°F | Sunny | 2 to 9 mph WSW | 1% |
| Wednesday Night | 51°F | Partly Cloudy | 6 mph WSW | 2% |
| Thursday | 78°F | Mostly Sunny | 2 to 6 mph SSW | 1% |
| Thursday Night | 52°F | Partly Cloudy | 5 mph SW | 1% |
| Friday | 77°F | Mostly Sunny | 3 to 8 mph SW | 3% |
Forecast source: National Weather Service (api.weather.gov) for Augusta (47.489, -112.392). Updated through the day.
Growing snapshot for Augusta
Last spring frost
May 13
First fall frost
Sep 27
Growing season
135 days
Hardiness zone
4b
More local growing data for Augusta: nearby ZIP 59436 weather · frost dates · planting calendar · Montana frost dates
Nearby towns & communities
Bynum
Choteau
Dutton
Gilman
Miller Colony
New Miami Colony
New Rockport Colony
Pendroy
Power
Rockport Colony
Climate data from the nearest NOAA station, Fairfield, Mt (6.2 mi from Augusta). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.