Brandon, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Brandon, a community in Madison County, Montana.
Overnight
48°F
Showers And Thunderstorms Likely
Showers and thunderstorms likely. Mostly cloudy, with a low around 48. North northwest wind around 3 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Brandon
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 48°F | Showers And Thunderstorms Likely | 3 mph NNW | 67% |
| Saturday | 55°F | Patchy Fog | 5 mph WNW | 79% |
| Saturday Night | 44°F | Chance Light Rain | 0 to 6 mph ESE | 42% |
| Sunday | 64°F | Patchy Fog then Partly Sunny | 0 to 3 mph WSW | 6% |
| Sunday Night | 45°F | Mostly Clear | 5 mph SE | 0% |
| Monday | 70°F | Sunny | 5 mph SSW | 0% |
| Monday Night | 47°F | Mostly Clear | 2 to 6 mph SSE | 0% |
| Tuesday | 72°F | Sunny | 3 mph SSW | 0% |
| Tuesday Night | 48°F | Partly Cloudy | 2 to 6 mph SE | 3% |
| Wednesday | 73°F | Sunny | 6 mph SSW | 3% |
| Wednesday Night | 50°F | Mostly Clear | 6 to 12 mph SSE | 2% |
| Thursday | 75°F | Sunny | 5 to 8 mph S | 1% |
| Thursday Night | 50°F | Mostly Clear | 7 to 13 mph SSE | 2% |
| Friday | 74°F | Mostly Sunny | 8 mph S | 4% |
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
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McAllister
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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.