Bull Lake, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Bull Lake, a community in Sanders County, Montana.
Overnight
31°F
Partly Cloudy
Partly cloudy, with a low around 31. North wind around 1 mph.
7-day forecast for Bull Lake
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 31°F | Partly Cloudy | 1 mph N | 3% |
| Wednesday | 50°F | Sunny | 2 mph SSE | 1% |
| Wednesday Night | 31°F | Partly Cloudy then Chance Light Rain | 1 mph S | 37% |
| Thursday | 41°F | Rain And Snow Likely | 3 mph SSW | 72% |
| Thursday Night | 33°F | Chance Rain And Snow then Mostly Cloudy | 2 mph SSW | 29% |
| Friday | 46°F | Chance Light Rain | 5 mph SSW | 31% |
| Friday Night | 35°F | Chance Light Rain | 3 mph SSW | 31% |
| Saturday | 52°F | Slight Chance Light Rain | 2 mph S | 17% |
| Saturday Night | 37°F | Mostly Cloudy then Light Rain Likely | 2 mph SSE | 67% |
| Sunday | 50°F | Light Rain Likely | 2 to 6 mph SSW | 67% |
| Sunday Night | 35°F | Chance Light Rain | 3 mph SSW | 39% |
| Monday | 49°F | Mostly Cloudy then Chance Light Rain | 1 mph SSE | 34% |
| Monday Night | 36°F | Chance Light Rain | 1 mph S | 35% |
| Tuesday | 51°F | Chance Light Rain | 2 mph SSW | 36% |
Forecast source: National Weather Service (api.weather.gov) for Bull Lake (48.230, -115.853). Updated through the day.
Growing snapshot for Bull Lake
Last spring frost
May 20
First fall frost
Sep 20
Growing season
119 days
Hardiness zone
6a
More local growing data for Bull Lake: nearby ZIP 59853 weather · frost dates · planting calendar · Montana frost dates
Nearby towns & communities
Belknap
Camas
Dixon
Heron
Hot Springs
Lonepine
Noxon
Old Agency
Paradise
Plains
Thompson Falls
Trout Creek
Climate data from the nearest NOAA station, Heron 2 Nw, Mt (10.1 mi from Bull Lake). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.