Brockway, MT Weather & Growing Conditions
Tonight
52°F
Showers And Thunderstorms
Showers and thunderstorms before 8pm, then patchy fog and showers and thunderstorms. Cloudy, with a low around 52. East northeast wind 9 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 90%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 52°F | Showers And Thunderstorms | 9 to 13 mph ENE | 92% |
| Sunday | 61°F | Rain Showers | 13 mph E | 84% |
| Sunday Night | 48°F | Mostly Cloudy | 9 mph ESE | 8% |
| Monday | 67°F | Partly Sunny | 8 to 14 mph SE | 2% |
| Monday Night | 50°F | Mostly Clear | 15 mph SE | 0% |
| Tuesday | 75°F | Sunny | 10 to 14 mph SSE | 0% |
| Tuesday Night | 53°F | Mostly Clear | 7 to 10 mph SE | 1% |
| Wednesday | 77°F | Mostly Sunny | 6 mph SSE | 9% |
| Wednesday Night | 54°F | Partly Cloudy | 5 mph SSE | 5% |
| Thursday | 80°F | Sunny | 7 mph SSW | 1% |
| Thursday Night | 56°F | Mostly Clear | 5 to 14 mph ESE | 2% |
| Friday | 80°F | Mostly Sunny | 14 to 18 mph SSE | 1% |
| Friday Night | 53°F | Partly Cloudy | 14 mph SE | 6% |
| Saturday | 71°F | Mostly Sunny | 15 mph NNW | 9% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Brockway, MT
Last spring frost
May 15
First fall frost
Sep 25
Growing season
132 days
Hardiness zone
4a
Explore more for Brockway, MT: full frost dates · planting calendar · Montana frost dates
Climate data from the nearest NOAA station, Rock Springs, Mt (15 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.