Broadus, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Broadus, a town in Powder River County, Montana.
Tonight
53°F
Patchy Fog
Patchy fog and showers and thunderstorms before 9pm, then patchy fog and showers and thunderstorms. Cloudy, with a low around 53. East northeast wind around 9 mph. Chance of precipitation is 90%.
7-day forecast for Broadus
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 53°F | Patchy Fog | 9 mph ENE | 92% |
| Sunday | 61°F | Patchy Fog | 7 to 10 mph ESE | 93% |
| Sunday Night | 49°F | Chance Rain Showers then Patchy Fog | 3 to 8 mph E | 53% |
| Monday | 67°F | Patchy Fog then Mostly Cloudy | 3 to 8 mph SE | 10% |
| Monday Night | 48°F | Mostly Clear then Patchy Fog | 7 to 12 mph SE | 2% |
| Tuesday | 76°F | Patchy Fog then Sunny | 7 to 10 mph SSE | 0% |
| Tuesday Night | 53°F | Mostly Clear | 5 to 9 mph SE | 6% |
| Wednesday | 79°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 7 mph SSE | 23% |
| Wednesday Night | 52°F | Partly Cloudy | 5 mph SE | 9% |
| Thursday | 83°F | Sunny | 5 mph S | 1% |
| Thursday Night | 56°F | Mostly Clear | 7 mph SE | 2% |
| Friday | 84°F | Mostly Sunny | 8 to 14 mph SSE | 2% |
| Friday Night | 54°F | Partly Cloudy | 8 to 13 mph SSE | 3% |
| Saturday | 77°F | Mostly Sunny then Slight Chance Rain Showers | 8 mph WSW | 15% |
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 Sep 20, 2026.