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Logan, MT Weather & Growing Conditions

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

This Afternoon
46°F
Mostly Sunny
Mostly sunny. High near 46, with temperatures falling to around 42 in the afternoon. Wind around 0 mph.

7-day forecast for Logan

WhenTempForecastWindPrecip
This Afternoon 46°F Mostly Sunny 0 mph 0%
Tonight 26°F Patchy Fog 1 mph ENE 0%
Wednesday 44°F Patchy Fog then Mostly Sunny 0 mph 0%
Wednesday Night 25°F Patchy Fog 0 to 3 mph SSE 0%
Thursday 48°F Patchy Fog then Mostly Sunny 0 to 3 mph SW 10%
Thursday Night 27°F Partly Cloudy 3 mph SSW 10%
Friday 49°F Mostly Sunny 5 mph SSW 4%
Friday Night 29°F Partly Cloudy 5 to 13 mph SSW 4%
Saturday 51°F Mostly Sunny 1 to 6 mph SSW 0%
Saturday Night 28°F Partly Cloudy 1 to 5 mph SSE 0%
Sunday 56°F Mostly Sunny 1 to 5 mph S 2%
Sunday Night 30°F Mostly Cloudy 1 to 5 mph S 2%
Monday 52°F Partly Sunny 2 mph S 1%
Monday Night 31°F Mostly Cloudy 2 mph SSE 1%

Forecast source: National Weather Service (api.weather.gov) for Logan (45.883, -111.424). Updated through the day.

Growing snapshot for Logan

Last spring frost
May 9
First fall frost
Sep 27
Growing season
139 days
Hardiness zone
5a

More local growing data for Logan: nearby ZIP 59752 weather · frost dates · planting calendar · Montana frost dates

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Climate data from the nearest NOAA station, Trident, Mt (3.2 mi from Logan). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.