Luther, MT Weather & Growing Conditions
Today
35°F
Mostly Sunny
Mostly sunny. High near 35, with temperatures falling to around 27 in the afternoon. East southeast wind 5 to 9 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 35°F | Mostly Sunny | 5 to 9 mph ESE | 0% |
| Tonight | 19°F | Partly Cloudy | 6 to 15 mph SSW | 0% |
| Thursday | 33°F | Mostly Sunny then Slight Chance Snow Showers | 9 to 17 mph WSW | 19% |
| Thursday Night | 19°F | Chance Snow Showers | 9 to 14 mph WSW | 25% |
| Friday | 30°F | Sunny | 14 to 18 mph WSW | 2% |
| Friday Night | 19°F | Partly Cloudy | 15 to 33 mph WSW | 2% |
| Saturday | 37°F | Sunny | 6 to 29 mph WSW | 0% |
| Saturday Night | 25°F | Mostly Clear | 12 to 37 mph W | 0% |
| Sunday | 41°F | Mostly Sunny | 22 to 40 mph WSW | 0% |
| Sunday Night | 25°F | Partly Cloudy | 23 to 32 mph W | 1% |
| Monday | 38°F | Mostly Sunny | 14 to 25 mph W | 2% |
| Monday Night | 25°F | Partly Cloudy | 14 to 29 mph W | 2% |
| Tuesday | 37°F | Mostly Sunny | 16 to 29 mph W | 5% |
| Tuesday Night | 25°F | Partly Cloudy | 16 to 29 mph WSW | 5% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Luther, MT
Last spring frost
Jun 5
First fall frost
Sep 14
Growing season
99 days
Hardiness zone
5a
Explore more for Luther, MT: full frost dates · planting calendar · Montana frost dates
Climate data from the nearest NOAA station, Mystic Lake, Mt (13.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.