Broadus, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Broadus, a town in Powder River County, Montana.
Tonight
25°F
Mostly Clear then Patchy Fog
Patchy fog after 5am. Mostly clear. Low around 25, with temperatures rising to around 27 overnight. Southwest wind around 2 mph.
7-day forecast for Broadus
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 25°F | Mostly Clear then Patchy Fog | 2 mph SW | 0% |
| Wednesday | 53°F | Patchy Fog then Mostly Sunny | 0 to 7 mph WNW | 0% |
| Wednesday Night | 27°F | Patchy Fog | 0 to 5 mph W | 0% |
| Thursday | 59°F | Sunny | 5 mph SSE | 0% |
| Thursday Night | 32°F | Partly Cloudy | 3 mph SSE | 0% |
| Friday | 56°F | Sunny | 2 to 6 mph WSW | 0% |
| Friday Night | 34°F | Mostly Clear | 2 to 6 mph SW | 5% |
| Saturday | 59°F | Sunny | 3 to 10 mph W | 3% |
| Saturday Night | 33°F | Mostly Clear | 2 to 6 mph SW | 0% |
| Sunday | 66°F | Sunny | 2 to 8 mph SSW | 0% |
| Sunday Night | 39°F | Partly Cloudy | 3 mph W | 0% |
| Monday | 59°F | Mostly Sunny | 5 mph NW | 1% |
| Monday Night | 35°F | Partly Cloudy | 3 mph SE | 1% |
| Tuesday | 63°F | Mostly Sunny | 6 mph WSW | 1% |
Forecast source: National Weather Service (api.weather.gov) for Broadus (45.443, -105.408). Updated through the day.
Growing snapshot for Broadus
Last spring frost
May 16
First fall frost
Sep 28
Growing season
135 days
Hardiness zone
4b
More local growing data for Broadus: nearby ZIP 59317 weather · frost dates · planting calendar · Montana frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Broadus, Mt (9.1 mi from Broadus). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.