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
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| 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
Nearby towns & communities
Alder
Big Sky
Ennis
Harrison
Jeffers
Mammoth
McAllister
Norris
Pony
Sheridan
Silver Star
Twin Bridges
Virginia City
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.