Clark Fork, ID Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Clark Fork, a city in Bonner County, Idaho.
Tonight
50°F
Mostly Clear
Mostly clear, with a low around 50. Wind around 0 mph.
7-day forecast for Clark Fork
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 50°F | Mostly Clear | 0 mph | 1% |
| Saturday | 75°F | Sunny | 0 to 5 mph W | 1% |
| Saturday Night | 51°F | Mostly Clear | 2 mph N | 0% |
| Sunday | 75°F | Sunny | 1 to 5 mph S | 0% |
| Sunday Night | 53°F | Clear | 2 mph NE | 0% |
| Monday | 76°F | Sunny | 1 to 6 mph S | 0% |
| Monday Night | 53°F | Mostly Clear | 2 mph SE | 0% |
| Tuesday | 74°F | Mostly Sunny | 5 mph S | 0% |
| Tuesday Night | 52°F | Partly Cloudy | 2 mph S | 1% |
| Wednesday | 70°F | Mostly Sunny | 1 to 6 mph SW | 1% |
| Wednesday Night | 51°F | Partly Cloudy | 2 mph S | 1% |
| Thursday | 74°F | Mostly Sunny | 3 mph S | 2% |
| Thursday Night | 53°F | Partly Cloudy | 3 mph SE | 8% |
| Friday | 70°F | Partly Sunny | 6 mph S | 14% |
Forecast source: National Weather Service (api.weather.gov) for Clark Fork (48.148, -116.173). Updated through the day.
Growing snapshot for Clark Fork
Last spring frost
May 9
First fall frost
Oct 8
Growing season
153 days
Hardiness zone
6b
More local growing data for Clark Fork: nearby ZIP 83811 weather · frost dates · planting calendar · Idaho frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Cabinet Gorge, Id (5 mi from Clark Fork). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.