Little Bitterroot Lake, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Little Bitterroot Lake, a community in Flathead County, Montana.
This Afternoon
74°F
Mostly Sunny
Mostly sunny, with a high near 74. West wind around 5 mph.
7-day forecast for Little Bitterroot Lake
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 74°F | Mostly Sunny | 5 mph W | 3% |
| Tonight | 46°F | Mostly Cloudy | 2 mph N | 3% |
| Saturday | 74°F | Sunny | 2 mph ESE | 1% |
| Saturday Night | 46°F | Partly Cloudy | 1 mph ESE | 0% |
| Sunday | 75°F | Sunny | 2 mph WSW | 0% |
| Sunday Night | 46°F | Mostly Clear | 1 mph NW | 0% |
| Monday | 75°F | Sunny | 0 to 3 mph WSW | 0% |
| Monday Night | 46°F | Mostly Clear | 0 to 3 mph WSW | 0% |
| Tuesday | 73°F | Sunny | 0 to 3 mph SSW | 0% |
| Tuesday Night | 46°F | Partly Cloudy | 2 mph WSW | 1% |
| Wednesday | 70°F | Sunny | 0 to 5 mph SW | 1% |
| Wednesday Night | 45°F | Partly Cloudy | 0 to 3 mph WSW | 2% |
| Thursday | 73°F | Mostly Sunny | 0 to 3 mph SSE | 2% |
| Thursday Night | 46°F | Partly Cloudy | 2 mph E | 2% |
Forecast source: National Weather Service (api.weather.gov) for Little Bitterroot Lake (48.134, -114.726). Updated through the day.
Growing snapshot for Little Bitterroot Lake
Growing season
44 days
Hardiness zone
4b
More local growing data for Little Bitterroot Lake: nearby ZIP 59925 weather · frost dates · planting calendar · Montana frost dates
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Climate data from the nearest NOAA station, Libby 32 Sse, Mt (18.6 mi from Little Bitterroot Lake). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.