Plentywood, MT Weather & Growing Conditions
Overnight
29°F
Mostly Clear
Mostly clear, with a low around 29. West wind around 3 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 29°F | Mostly Clear | 3 mph W | 0% |
| Wednesday | 52°F | Sunny | 3 to 8 mph NNW | 0% |
| Wednesday Night | 27°F | Partly Cloudy | 1 to 6 mph N | 0% |
| Thursday | 47°F | Partly Sunny | 3 to 12 mph SSE | 0% |
| Thursday Night | 32°F | Partly Cloudy | 5 to 8 mph SW | 0% |
| Friday | 52°F | Sunny | 6 to 13 mph WSW | 0% |
| Friday Night | 34°F | Partly Cloudy | 8 to 13 mph SW | 0% |
| Saturday | 56°F | Mostly Sunny | 8 to 17 mph WNW | 0% |
| Saturday Night | 31°F | Partly Cloudy | 3 to 8 mph SW | 0% |
| Sunday | 60°F | Mostly Sunny | 5 to 12 mph SSW | 0% |
| Sunday Night | 39°F | Partly Cloudy | 10 to 15 mph W | 0% |
| Monday | 55°F | Mostly Sunny | 7 to 15 mph WNW | 1% |
| Monday Night | 32°F | Partly Cloudy | 3 to 7 mph WSW | 1% |
| Tuesday | 55°F | Mostly Sunny | 3 to 9 mph S | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Plentywood, MT
Last spring frost
May 25
First fall frost
Sep 14
Growing season
111 days
Hardiness zone
3b
Explore more for Plentywood, MT: full frost dates · planting calendar · Montana frost dates
Climate data from the nearest NOAA station, Plentywood, Mt (3.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.