Poplar, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Poplar, a city in Roosevelt County, Montana.
Today
76°F
Sunny
Sunny, with a high near 76. West northwest wind around 15 mph, with gusts as high as 22 mph.
7-day forecast for Poplar
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 76°F | Sunny | 15 mph WNW | 0% |
| Tonight | 49°F | Mostly Clear | 5 to 12 mph WSW | 1% |
| Wednesday | 86°F | Partly Sunny | 8 to 15 mph WSW | 0% |
| Wednesday Night | 53°F | Partly Cloudy | 3 to 13 mph WSW | 1% |
| Thursday | 91°F | Sunny | 3 to 10 mph W | 0% |
| Thursday Night | 55°F | Mostly Clear | 6 to 9 mph NNW | 0% |
| Friday | 89°F | Sunny | 7 mph ENE | 0% |
| Friday Night | 57°F | Mostly Clear | 7 to 10 mph NE | 1% |
| Saturday | 90°F | Sunny | 12 mph ENE | 0% |
| Saturday Night | 57°F | Partly Cloudy | 9 to 13 mph NE | 2% |
| Sunday | 89°F | Partly Sunny | 10 to 14 mph ENE | 1% |
| Sunday Night | 57°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 12 to 15 mph NE | 15% |
| Monday | 86°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 14 mph ENE | 21% |
| Monday Night | 57°F | Partly Cloudy then Chance Showers And Thunderstorms | 12 to 15 mph ENE | 26% |
Forecast source: National Weather Service (api.weather.gov) for Poplar (48.110, -105.197). Updated through the day.
Growing snapshot for Poplar
Last spring frost
May 24
First fall frost
Sep 14
Growing season
110 days
Hardiness zone
4a
More local growing data for Poplar: nearby ZIP 59255 weather · frost dates · planting calendar · Montana frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Wolf Point 29 Ene, Mt (5.6 mi from Poplar). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.