Brandon, MT Weather & Growing Conditions
This Afternoon
42°F
Mostly Sunny
Mostly sunny. High near 42, with temperatures falling to around 37 in the afternoon. Southeast wind around 3 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 42°F | Mostly Sunny | 3 mph SE | 0% |
| Tonight | 29°F | Mostly Cloudy | 0 to 5 mph ENE | 0% |
| Wednesday | 42°F | Mostly Sunny | 0 to 3 mph W | 0% |
| Wednesday Night | 29°F | Mostly Clear | 1 to 7 mph SSE | 0% |
| Thursday | 40°F | Mostly Sunny | 5 to 8 mph SSW | 11% |
| Thursday Night | 28°F | Partly Cloudy | 6 to 9 mph SSW | 11% |
| Friday | 40°F | Mostly Sunny | 9 mph SSW | 6% |
| Friday Night | 29°F | Partly Cloudy | 9 to 21 mph SSW | 6% |
| Saturday | 43°F | Mostly Sunny | 6 to 12 mph SW | 0% |
| Saturday Night | 32°F | Partly Cloudy | 6 to 16 mph S | 0% |
| Sunday | 48°F | Mostly Sunny | 7 to 12 mph SSW | 1% |
| Sunday Night | 34°F | Mostly Cloudy | 6 to 13 mph S | 1% |
| Monday | 47°F | Partly Sunny | 6 mph SSW | 2% |
| Monday Night | 35°F | Mostly Cloudy | 6 to 12 mph S | 2% |
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 Nov 4, 2026.