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Frenchtown, MT Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Frenchtown, a community in Missoula County, Montana.

This Afternoon
46°F
Partly Sunny
Partly sunny, with a high near 46. Wind around 0 mph.

7-day forecast for Frenchtown

WhenTempForecastWindPrecip
This Afternoon 46°F Partly Sunny 0 mph 0%
Tonight 26°F Mostly Cloudy then Patchy Fog 0 mph 0%
Wednesday 49°F Patchy Fog then Mostly Sunny 0 mph 0%
Wednesday Night 26°F Mostly Clear 1 mph W 0%
Thursday 48°F Partly Sunny 2 mph SW 6%
Thursday Night 28°F Partly Cloudy 0 to 3 mph SW 4%
Friday 49°F Partly Sunny then Slight Chance Light Rain 2 mph SSW 16%
Friday Night 32°F Slight Chance Light Rain then Mostly Cloudy 1 to 6 mph SW 16%
Saturday 53°F Partly Sunny 2 mph S 1%
Saturday Night 33°F Partly Cloudy 0 to 3 mph SSE 12%
Sunday 58°F Partly Sunny 2 mph SSW 12%
Sunday Night 33°F Mostly Cloudy 2 mph W 12%
Monday 53°F Mostly Cloudy 1 mph SSE 11%
Monday Night 33°F Mostly Cloudy then Slight Chance Light Rain 1 mph S 16%

Forecast source: National Weather Service (api.weather.gov) for Frenchtown (47.028, -114.246). Updated through the day.

Growing snapshot for Frenchtown

Last spring frost
May 6
First fall frost
Oct 4
Growing season
151 days
Hardiness zone
6a

More local growing data for Frenchtown: nearby ZIP 59834 weather · frost dates · planting calendar · Montana frost dates

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Climate data from the nearest NOAA station, Missoula 6 Nw Wfo, Mt (12.4 mi from Frenchtown). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.