Dupuyer, MT Weather & Growing Conditions
Today
48°F
Mostly Sunny
Mostly sunny. High near 48, with temperatures falling to around 42 in the afternoon. North wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 48°F | Mostly Sunny | 5 mph N | 0% |
| Tonight | 32°F | Mostly Clear | 3 to 7 mph SW | 0% |
| Thursday | 47°F | Partly Sunny | 7 to 17 mph WSW | 0% |
| Thursday Night | 34°F | Partly Cloudy | 14 to 24 mph WSW | 0% |
| Friday | 49°F | Mostly Sunny | 14 mph WSW | 0% |
| Friday Night | 39°F | Mostly Cloudy | 12 to 22 mph WSW | 1% |
| Saturday | 56°F | Partly Sunny | 5 to 12 mph SW | 1% |
| Saturday Night | 41°F | Mostly Cloudy | 5 to 9 mph SW | 0% |
| Sunday | 57°F | Partly Sunny | 9 to 21 mph SW | 7% |
| Sunday Night | 37°F | Mostly Cloudy | 6 to 21 mph W | 7% |
| Monday | 50°F | Partly Sunny | 6 mph WSW | 2% |
| Monday Night | 37°F | Mostly Cloudy | 5 to 8 mph SW | 1% |
| Tuesday | 53°F | Partly Sunny | 7 to 12 mph SW | 4% |
| Tuesday Night | 39°F | Mostly Cloudy | 7 to 12 mph WSW | 4% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Dupuyer, MT
Last spring frost
Jun 9
First fall frost
Sep 3
Growing season
86 days
Hardiness zone
4b
Explore more for Dupuyer, MT: full frost dates · planting calendar · Montana frost dates
Climate data from the nearest NOAA station, Blackleaf, Mt (11.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.