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Brandon, MT Weather & Growing Conditions

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

Tonight
50°F
Showers And Thunderstorms
Showers and thunderstorms. Cloudy, with a low around 50. North northwest wind around 3 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

7-day forecast for Brandon

WhenTempForecastWindPrecip
Tonight 50°F Showers And Thunderstorms 3 mph NNW 96%
Saturday 56°F Showers And Thunderstorms 5 mph WNW 79%
Saturday Night 47°F Chance Light Rain 0 to 6 mph ESE 42%
Sunday 64°F Patchy Fog then Partly Sunny 0 to 3 mph WSW 7%
Sunday Night 47°F Mostly Clear 5 mph SE 0%
Monday 70°F Sunny 5 mph SW 0%
Monday Night 49°F Mostly Clear 5 mph SE 1%
Tuesday 71°F Mostly Sunny 3 mph SSW 1%
Tuesday Night 49°F Partly Cloudy 2 to 6 mph SE 3%
Wednesday 72°F Sunny 6 mph SSW 1%
Wednesday Night 50°F Mostly Clear 5 to 8 mph SSE 2%
Thursday 74°F Sunny 6 mph SSW 2%
Thursday Night 51°F Partly Cloudy 5 to 12 mph SSE 1%
Friday 74°F Mostly Sunny 5 to 8 mph SSW 1%

Forecast source: National Weather Service (api.weather.gov) for Brandon (45.466, -112.134). Updated through the day.

Growing snapshot for Brandon

Last spring frost
May 24
First fall frost
Sep 22
Growing season
117 days
Hardiness zone
5a

More local growing data for Brandon: nearby ZIP 59749 weather · frost dates · planting calendar · Montana frost dates

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Climate data from the nearest NOAA station, Laurin 2Ne, Mt (6.1 mi from Brandon). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.