Bigfork, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Bigfork, a community in Flathead County, Montana.
Overnight
46°F
Mostly Clear
Mostly clear, with a low around 46. North wind around 2 mph.
7-day forecast for Bigfork
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 46°F | Mostly Clear | 2 mph N | 0% |
| Tuesday | 76°F | Sunny | 3 mph WNW | 0% |
| Tuesday Night | 51°F | Mostly Clear | 2 mph SE | 0% |
| Wednesday | 82°F | Sunny | 3 mph S | 0% |
| Wednesday Night | 54°F | Clear | 2 mph SSE | 0% |
| Thursday | 88°F | Sunny | 1 to 5 mph SSE | 0% |
| Thursday Night | 57°F | Clear | 3 mph SSE | 0% |
| Friday | 91°F | Sunny | 1 to 7 mph S | 0% |
| Friday Night | 59°F | Clear | 2 to 8 mph S | 0% |
| Saturday | 90°F | Sunny | 3 to 9 mph S | 0% |
| Saturday Night | 58°F | Mostly Clear | 0 to 7 mph N | 0% |
| Sunday | 86°F | Sunny | 1 to 5 mph S | 0% |
| Sunday Night | 56°F | Mostly Clear | 2 mph N | 0% |
| Monday | 84°F | Sunny | 3 mph NW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Bigfork (48.084, -114.055). Updated through the day.
Growing snapshot for Bigfork
Last spring frost
May 1
First fall frost
Oct 15
Growing season
165 days
Hardiness zone
6a
More local growing data for Bigfork: nearby ZIP 59922 weather · frost dates · planting calendar · Montana frost dates
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Climate data from the nearest NOAA station, Bigfork 13 S, Mt (12.3 mi from Bigfork). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.