Frenchtown, MT Weather & Growing Conditions
Tonight
27°F
Mostly Cloudy
Mostly cloudy, with a low around 27. North northwest wind around 2 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 27°F | Mostly Cloudy | 2 mph NNW | 0% |
| Wednesday | 40°F | Mostly Sunny | 3 mph WSW | 0% |
| Wednesday Night | 27°F | Mostly Clear | 1 to 6 mph SSE | 1% |
| Thursday | 36°F | Partly Sunny | 3 to 7 mph SSW | 10% |
| Thursday Night | 28°F | Partly Cloudy | 6 mph SW | 2% |
| Friday | 41°F | Partly Sunny | 2 to 7 mph SSW | 4% |
| Friday Night | 34°F | Mostly Cloudy | 2 to 6 mph SSW | 5% |
| Saturday | 46°F | Mostly Sunny | 1 to 6 mph S | 5% |
| Saturday Night | 36°F | Partly Cloudy then Slight Chance Rain And Snow | 1 to 8 mph S | 21% |
| Sunday | 47°F | Slight Chance Rain And Snow | 3 to 9 mph SSW | 21% |
| Sunday Night | 34°F | Mostly Cloudy | 3 mph SW | 12% |
| Monday | 43°F | Partly Sunny then Slight Chance Rain And Snow | 0 to 3 mph S | 15% |
| Monday Night | 36°F | Slight Chance Rain And Snow | 0 to 3 mph SW | 15% |
| Tuesday | 45°F | Slight Chance Rain And Snow | 1 to 6 mph SW | 15% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Frenchtown, MT
Last spring frost
May 6
First fall frost
Oct 4
Growing season
151 days
Hardiness zone
6a
Explore more for Frenchtown, MT: full frost dates · planting calendar · Montana frost dates
Climate data from the nearest NOAA station, Missoula 6 Nw Wfo, Mt (12.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.