Bull Lake, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Bull Lake, a community in Sanders County, Montana.
Today
80°F
Sunny
Sunny, with a high near 80. North northwest wind around 3 mph.
7-day forecast for Bull Lake
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 80°F | Sunny | 3 mph NNW | 0% |
| Tonight | 49°F | Mostly Clear | 0 to 3 mph W | 0% |
| Wednesday | 84°F | Sunny then Patchy Smoke | 0 to 5 mph SW | 0% |
| Wednesday Night | 52°F | Patchy Smoke then Mostly Clear | 0 to 3 mph SW | 0% |
| Thursday | 90°F | Sunny | 0 to 5 mph SSW | 0% |
| Thursday Night | 55°F | Mostly Clear | 0 to 5 mph SSW | 0% |
| Friday | 89°F | Sunny | 0 to 6 mph SSW | 0% |
| Friday Night | 55°F | Mostly Clear | 1 to 6 mph SSW | 0% |
| Saturday | 86°F | Sunny | 1 to 7 mph SW | 0% |
| Saturday Night | 53°F | Mostly Clear | 1 to 5 mph SSW | 0% |
| Sunday | 83°F | Sunny | 1 to 5 mph SSW | 0% |
| Sunday Night | 52°F | Mostly Clear | 0 to 3 mph S | 0% |
| Monday | 83°F | Sunny | 3 mph SSE | 0% |
| Monday Night | 51°F | Mostly Clear | 3 mph S | 1% |
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 Aug 4, 2026.