Brandon, MT Weather & Growing Conditions
Tonight
47°F
Showers And Thunderstorms
Showers and thunderstorms. Cloudy. Low around 47, with temperatures rising to around 50 overnight. North northeast wind 2 to 6 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 47°F | Showers And Thunderstorms | 2 to 6 mph NNE | 90% |
| Saturday | 51°F | Showers And Thunderstorms | 2 to 6 mph W | 94% |
| Saturday Night | 44°F | Rain Likely | 1 to 6 mph NNE | 58% |
| Sunday | 58°F | Patchy Fog then Partly Sunny | 1 to 5 mph W | 11% |
| Sunday Night | 44°F | Mostly Clear | 5 mph SSE | 0% |
| Monday | 64°F | Sunny | 6 mph SW | 0% |
| Monday Night | 47°F | Mostly Clear | 6 mph SSE | 1% |
| Tuesday | 65°F | Mostly Sunny | 5 mph SW | 1% |
| Tuesday Night | 48°F | Partly Cloudy | 6 mph SSE | 4% |
| Wednesday | 66°F | Sunny | 3 to 8 mph SSW | 2% |
| Wednesday Night | 48°F | Mostly Clear | 8 mph SSE | 2% |
| Thursday | 68°F | Sunny | 6 mph SSW | 2% |
| Thursday Night | 49°F | Mostly Clear | 5 to 12 mph SSE | 1% |
| Friday | 68°F | Mostly Sunny | 6 to 9 mph SSW | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Brandon, MT
Last spring frost
May 24
First fall frost
Sep 22
Growing season
117 days
Hardiness zone
5a
Explore more for Brandon, MT: full frost dates · planting calendar · Montana frost dates
Climate data from the nearest NOAA station, Laurin 2Ne, Mt (6.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.