Lonepine, MT Weather & Growing Conditions
Overnight
51°F
Mostly Clear
Mostly clear, with a low around 51. East wind around 1 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 51°F | Mostly Clear | 1 mph E | 1% |
| Sunday | 73°F | Sunny | 0 to 5 mph ESE | 1% |
| Sunday Night | 51°F | Mostly Clear | 3 mph N | 0% |
| Monday | 75°F | Sunny | 1 to 5 mph S | 0% |
| Monday Night | 53°F | Mostly Clear | 3 mph SSW | 0% |
| Tuesday | 76°F | Mostly Sunny | 1 to 5 mph SSW | 0% |
| Tuesday Night | 54°F | Partly Cloudy | 3 mph W | 0% |
| Wednesday | 73°F | Mostly Sunny | 1 to 7 mph SW | 2% |
| Wednesday Night | 51°F | Partly Cloudy | 2 to 8 mph W | 3% |
| Thursday | 69°F | Mostly Sunny | 1 to 5 mph SSW | 2% |
| Thursday Night | 51°F | Partly Cloudy | 3 mph N | 11% |
| Friday | 67°F | Mostly Sunny | 1 to 5 mph WSW | 10% |
| Friday Night | 49°F | Slight Chance Light Rain | 5 to 8 mph W | 17% |
| Saturday | 61°F | Partly Sunny | 5 mph W | 14% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Lonepine, MT
Last spring frost
May 15
First fall frost
Sep 28
Growing season
134 days
Hardiness zone
6a
Explore more for Lonepine, MT: full frost dates · planting calendar · Montana frost dates
Climate data from the nearest NOAA station, Skq Dam, Mt (14.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.