Plentywood, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Plentywood, a city in Sheridan County, Montana.
Overnight
43°F
Partly Cloudy
Partly cloudy, with a low around 43. West northwest wind around 8 mph.
7-day forecast for Plentywood
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 43°F | Partly Cloudy | 8 mph WNW | 0% |
| Tuesday | 72°F | Mostly Sunny | 8 to 17 mph WNW | 0% |
| Tuesday Night | 49°F | Partly Cloudy | 5 to 14 mph WSW | 2% |
| Wednesday | 81°F | Partly Sunny | 9 to 21 mph WSW | 2% |
| Wednesday Night | 52°F | Partly Cloudy | 3 to 17 mph W | 3% |
| Thursday | 85°F | Sunny | 5 to 15 mph WNW | 1% |
| Thursday Night | 53°F | Mostly Clear | 7 to 15 mph N | 1% |
| Friday | 82°F | Sunny | 8 mph NNE | 1% |
| Friday Night | 54°F | Partly Cloudy | 8 to 12 mph ENE | 5% |
| Saturday | 83°F | Mostly Sunny | 9 to 13 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 16 mph ENE | 23% |
| Monday | 79°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 12 to 15 mph ENE | 18% |
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 Aug 4, 2026.