Inverness, MT Weather & Growing Conditions
Tonight
49°F
Mostly Cloudy
Mostly cloudy, with a low around 49. North northeast wind around 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 49°F | Mostly Cloudy | 10 mph NNE | 1% |
| Saturday | 68°F | Partly Sunny | 10 mph ENE | 2% |
| Saturday Night | 47°F | Mostly Cloudy | 5 to 9 mph SE | 0% |
| Sunday | 71°F | Sunny | 5 to 9 mph SSE | 0% |
| Sunday Night | 48°F | Mostly Clear | 7 to 10 mph SSE | 0% |
| Monday | 75°F | Sunny | 6 to 10 mph SSE | 0% |
| Monday Night | 49°F | Mostly Clear | 6 to 9 mph SSW | 0% |
| Tuesday | 75°F | Sunny | 6 mph WSW | 0% |
| Tuesday Night | 49°F | Mostly Clear | 5 mph S | 1% |
| Wednesday | 75°F | Sunny | 5 to 8 mph WSW | 1% |
| Wednesday Night | 49°F | Mostly Clear | 7 mph SW | 2% |
| Thursday | 74°F | Sunny | 5 to 8 mph SSW | 2% |
| Thursday Night | 50°F | Partly Cloudy | 7 mph ESE | 2% |
| Friday | 75°F | Mostly Sunny | 8 mph SW | 2% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Inverness, MT
Last spring frost
May 21
First fall frost
Sep 19
Growing season
119 days
Hardiness zone
4a
Explore more for Inverness, MT: full frost dates · planting calendar · Montana frost dates
Climate data from the nearest NOAA station, Joplin, Mt (4.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.