Plentywood, MT Weather & Growing Conditions
Today
72°F
Mostly Sunny
Mostly sunny, with a high near 72. West northwest wind 10 to 16 mph, with gusts as high as 24 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 72°F | Mostly Sunny | 10 to 16 mph WNW | 0% |
| Tonight | 50°F | Mostly Clear | 6 to 15 mph WSW | 2% |
| Wednesday | 81°F | Partly Sunny | 9 to 21 mph WSW | 1% |
| Wednesday Night | 52°F | Partly Cloudy | 5 to 17 mph W | 3% |
| Thursday | 85°F | Sunny | 5 to 15 mph WNW | 1% |
| Thursday Night | 53°F | Mostly Clear | 8 to 15 mph N | 1% |
| Friday | 82°F | Sunny | 7 mph NNE | 1% |
| Friday Night | 54°F | Partly Cloudy | 8 to 12 mph ENE | 4% |
| Saturday | 83°F | Mostly Sunny | 8 to 12 mph NE | 0% |
| Saturday Night | 55°F | Partly Cloudy | 10 to 14 mph NE | 2% |
| Sunday | 82°F | Partly Sunny | 10 to 15 mph ENE | 9% |
| Sunday Night | 55°F | Slight Chance Showers And Thunderstorms | 12 to 17 mph ENE | 23% |
| Monday | 79°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 14 mph ENE | 18% |
| Monday Night | 54°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 10 to 16 mph ENE | 28% |
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 Aug 4, 2026.