Brockton, MT Weather & Growing Conditions
This Afternoon
51°F
Sunny
Sunny. High near 51, with temperatures falling to around 45 in the afternoon. Northwest wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 51°F | Sunny | 5 mph NW | 0% |
| Tonight | 25°F | Patchy Fog | 6 mph NE | 0% |
| Thursday | 51°F | Patchy Fog then Mostly Sunny | 5 to 10 mph SE | 0% |
| Thursday Night | 29°F | Partly Cloudy | 6 to 9 mph SW | 0% |
| Friday | 52°F | Mostly Sunny | 6 to 13 mph WSW | 0% |
| Friday Night | 33°F | Mostly Clear | 6 to 14 mph SW | 0% |
| Saturday | 57°F | Mostly Sunny | 5 to 14 mph W | 0% |
| Saturday Night | 30°F | Mostly Clear | 5 mph SW | 0% |
| Sunday | 62°F | Mostly Sunny | 5 to 10 mph SSW | 0% |
| Sunday Night | 37°F | Partly Cloudy | 8 to 12 mph WSW | 0% |
| Monday | 55°F | Mostly Sunny | 6 to 12 mph W | 2% |
| Monday Night | 31°F | Partly Cloudy | 6 mph SW | 2% |
| Tuesday | 56°F | Mostly Sunny | 5 to 8 mph S | 0% |
| Tuesday Night | 34°F | Partly Cloudy | 7 mph SSW | 4% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Brockton, MT
Last spring frost
May 24
First fall frost
Sep 14
Growing season
110 days
Hardiness zone
4a
Explore more for Brockton, MT: full frost dates · planting calendar · Montana frost dates
Climate data from the nearest NOAA station, Wolf Point 29 Ene, Mt (12.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 5, 2026.