Plentywood, MT Weather & Growing Conditions
Today
68°F
Partly Sunny
Partly sunny, with a high near 68. Northeast wind 12 to 16 mph, with gusts as high as 24 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 68°F | Partly Sunny | 12 to 16 mph NE | 0% |
| Tonight | 50°F | Mostly Cloudy | 10 to 14 mph E | 11% |
| Sunday | 63°F | Mostly Cloudy | 13 mph ESE | 10% |
| Sunday Night | 48°F | Partly Cloudy | 6 to 10 mph SE | 0% |
| Monday | 70°F | Mostly Sunny | 6 to 18 mph SSE | 2% |
| Monday Night | 51°F | Mostly Clear | 16 mph SSE | 1% |
| Tuesday | 75°F | Mostly Sunny | 13 to 18 mph SSE | 1% |
| Tuesday Night | 54°F | Mostly Clear | 9 to 15 mph SSE | 2% |
| Wednesday | 78°F | Mostly Sunny | 8 to 12 mph SSE | 5% |
| Wednesday Night | 54°F | Partly Cloudy | 6 to 9 mph SE | 11% |
| Thursday | 81°F | Mostly Sunny | 5 to 12 mph SSE | 2% |
| Thursday Night | 55°F | Mostly Clear | 10 mph SE | 4% |
| Friday | 79°F | Mostly Sunny | 9 to 20 mph SE | 2% |
| Friday Night | 54°F | Partly Cloudy | 18 mph SE | 11% |
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 Sep 19, 2026.