Luther, MT Weather & Growing Conditions
Today
51°F
Patchy Smoke
Patchy smoke before 3pm, then patchy smoke and a slight chance of showers and thunderstorms. Sunny. High near 51, with temperatures falling to around 49 in the afternoon. Southwest wind 5 to 15 mph. Chance of precipitation is 20%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 51°F | Patchy Smoke | 5 to 15 mph SW | 15% |
| Tonight | 33°F | Areas Of Smoke | 5 to 12 mph W | 15% |
| Wednesday | 59°F | Sunny | 7 to 16 mph W | 0% |
| Wednesday Night | 39°F | Mostly Clear | 6 to 15 mph WSW | 1% |
| Thursday | 65°F | Sunny | 10 to 16 mph W | 1% |
| Thursday Night | 44°F | Mostly Clear | 7 to 15 mph W | 2% |
| Friday | 68°F | Sunny | 10 to 17 mph W | 1% |
| Friday Night | 46°F | Partly Cloudy | 14 to 25 mph W | 1% |
| Saturday | 67°F | Sunny | 12 to 22 mph W | 2% |
| Saturday Night | 45°F | Partly Cloudy | 10 to 20 mph W | 4% |
| Sunday | 65°F | Sunny | 13 to 21 mph W | 13% |
| Sunday Night | 44°F | Slight Chance Rain Showers then Partly Cloudy | 13 to 21 mph NW | 15% |
| Monday | 64°F | Sunny | 15 to 21 mph W | 12% |
| Monday Night | 43°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 14 to 20 mph WNW | 16% |
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 Aug 4, 2026.