Lonepine, MT Weather & Growing Conditions
This Afternoon
42°F
Partly Sunny
Partly sunny. High near 42, with temperatures falling to around 37 in the afternoon. East southeast wind around 1 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 42°F | Partly Sunny | 1 mph ESE | 0% |
| Tonight | 30°F | Mostly Cloudy | 1 mph WNW | 0% |
| Wednesday | 44°F | Mostly Sunny | 2 mph SE | 0% |
| Wednesday Night | 31°F | Mostly Clear | 2 mph WSW | 2% |
| Thursday | 42°F | Partly Sunny | 2 to 6 mph SW | 10% |
| Thursday Night | 32°F | Mostly Cloudy | 6 mph SW | 2% |
| Friday | 46°F | Partly Sunny | 2 to 7 mph SSW | 14% |
| Friday Night | 37°F | Mostly Cloudy | 2 to 8 mph SW | 14% |
| Saturday | 51°F | Partly Sunny | 3 mph SSW | 3% |
| Saturday Night | 38°F | Mostly Cloudy then Chance Light Rain | 1 to 5 mph SSW | 30% |
| Sunday | 52°F | Chance Light Rain | 5 to 15 mph SW | 30% |
| Sunday Night | 37°F | Mostly Cloudy | 1 to 8 mph WSW | 11% |
| Monday | 48°F | Partly Sunny then Slight Chance Light Rain | 2 mph SSW | 17% |
| Monday Night | 38°F | Slight Chance Light Rain | 2 mph WSW | 17% |
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 (21 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.