Argenta, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Argenta, a community in Beaverhead County, Montana.
Tonight
42°F
Slight Chance Light Rain then Patchy Fog
A slight chance of rain before 9pm, then patchy fog. Mostly cloudy, with a low around 42. North northeast wind around 3 mph. Chance of precipitation is 20%.
7-day forecast for Argenta
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 42°F | Slight Chance Light Rain then Patchy Fog | 3 mph NNE | 17% |
| Sunday | 62°F | Patchy Fog then Mostly Sunny | 2 to 6 mph S | 4% |
| Sunday Night | 44°F | Mostly Clear | 2 mph NW | 0% |
| Monday | 68°F | Sunny | 2 to 6 mph SW | 0% |
| Monday Night | 46°F | Mostly Clear | 3 mph WSW | 0% |
| Tuesday | 70°F | Mostly Sunny | 3 to 7 mph SW | 1% |
| Tuesday Night | 48°F | Partly Cloudy | 5 mph WSW | 8% |
| Wednesday | 71°F | Sunny | 5 to 12 mph SW | 2% |
| Wednesday Night | 48°F | Partly Cloudy | 5 to 8 mph WSW | 3% |
| Thursday | 73°F | Sunny | 6 to 12 mph SSW | 1% |
| Thursday Night | 49°F | Partly Cloudy | 6 to 10 mph SSW | 2% |
| Friday | 72°F | Mostly Sunny | 6 to 12 mph SSW | 4% |
| Friday Night | 47°F | Mostly Cloudy | 6 to 10 mph SW | 6% |
| Saturday | 66°F | Mostly Sunny | 5 to 10 mph SW | 14% |
Forecast source: National Weather Service (api.weather.gov) for Argenta (45.279, -112.861). Updated through the day.
Growing snapshot for Argenta
Growing season
72 days
Hardiness zone
5a
More local growing data for Argenta: nearby ZIP 59725 weather · frost dates · planting calendar · Montana frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Dillon 18 Wsw, Mt (10.2 mi from Argenta). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.