Poplar, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Poplar, a city in Roosevelt County, Montana.
Tonight
24°F
Patchy Fog
Patchy fog after 8pm. Partly cloudy, with a low around 24. West southwest wind around 1 mph.
7-day forecast for Poplar
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 24°F | Patchy Fog | 1 mph WSW | 0% |
| Wednesday | 53°F | Patchy Fog then Mostly Sunny | 0 to 5 mph WNW | 0% |
| Wednesday Night | 25°F | Mostly Cloudy | 3 mph NE | 0% |
| Thursday | 54°F | Mostly Sunny | 1 to 7 mph SE | 0% |
| Thursday Night | 29°F | Partly Cloudy | 6 mph SW | 0% |
| Friday | 55°F | Sunny | 6 to 12 mph WSW | 2% |
| Friday Night | 33°F | Partly Cloudy | 7 to 12 mph WSW | 3% |
| Saturday | 57°F | Sunny | 7 to 16 mph W | 3% |
| Saturday Night | 29°F | Mostly Clear | 3 to 7 mph SW | 0% |
| Sunday | 63°F | Mostly Sunny | 3 to 10 mph SW | 0% |
| Sunday Night | 37°F | Partly Cloudy | 8 to 14 mph W | 0% |
| Monday | 56°F | Mostly Sunny | 5 to 10 mph W | 1% |
| Monday Night | 30°F | Partly Cloudy | 5 mph WSW | 1% |
| Tuesday | 58°F | Partly Sunny | 2 to 8 mph SW | 2% |
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 Nov 4, 2026.