Plentywood, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Plentywood, a city in Sheridan County, Montana.
Tonight
28°F
Mostly Clear
Mostly clear, with a low around 28. Northwest wind around 3 mph.
7-day forecast for Plentywood
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 28°F | Mostly Clear | 3 mph NW | 0% |
| Wednesday | 54°F | Sunny | 2 to 7 mph NNW | 0% |
| Wednesday Night | 27°F | Partly Cloudy | 5 mph NE | 0% |
| Thursday | 49°F | Mostly Sunny | 3 to 12 mph SSE | 0% |
| Thursday Night | 31°F | Partly Cloudy | 5 to 8 mph SW | 0% |
| Friday | 54°F | Sunny | 6 to 14 mph WSW | 3% |
| Friday Night | 35°F | Partly Cloudy | 9 to 13 mph WSW | 5% |
| Saturday | 56°F | Sunny | 9 to 18 mph W | 4% |
| Saturday Night | 31°F | Mostly Clear | 5 to 9 mph SW | 0% |
| Sunday | 60°F | Mostly Sunny | 6 to 13 mph SSW | 0% |
| Sunday Night | 39°F | Partly Cloudy | 10 to 16 mph W | 1% |
| Monday | 55°F | Mostly Sunny | 7 to 14 mph W | 1% |
| Monday Night | 32°F | Partly Cloudy | 7 mph WSW | 1% |
| Tuesday | 56°F | Mostly Sunny | 5 to 12 mph SW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Plentywood (48.776, -104.557). Updated through the day.
Growing snapshot for Plentywood
Last spring frost
May 25
First fall frost
Sep 14
Growing season
111 days
Hardiness zone
3b
More local growing data for Plentywood: nearby ZIP 59254 weather · frost dates · planting calendar · Montana frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Plentywood, Mt (3.7 mi from Plentywood). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.