Clark Fork, ID Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Clark Fork, a city in Bonner County, Idaho.
This Afternoon
50°F
Mostly Cloudy
Mostly cloudy. High near 50, with temperatures falling to around 44 in the afternoon. North wind around 2 mph.
7-day forecast for Clark Fork
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 50°F | Mostly Cloudy | 2 mph N | 1% |
| Tonight | 35°F | Mostly Cloudy | 1 mph E | 1% |
| Wednesday | 51°F | Sunny | 0 to 3 mph SW | 1% |
| Wednesday Night | 36°F | Partly Cloudy then Chance Rain Showers | 2 mph SE | 52% |
| Thursday | 44°F | Rain And Snow Showers | 5 mph S | 80% |
| Thursday Night | 35°F | Chance Rain Showers then Mostly Cloudy | 3 mph S | 28% |
| Friday | 49°F | Chance Rain Showers | 3 to 7 mph S | 27% |
| Friday Night | 39°F | Chance Rain Showers | 5 mph S | 27% |
| Saturday | 54°F | Partly Sunny | 5 mph SE | 8% |
| Saturday Night | 41°F | Mostly Cloudy then Chance Rain Showers | 2 to 6 mph SE | 32% |
| Sunday | 52°F | Chance Rain Showers | 6 to 9 mph S | 49% |
| Sunday Night | 38°F | Chance Rain Showers then Mostly Cloudy | 2 to 6 mph S | 27% |
| Monday | 51°F | Partly Sunny then Slight Chance Rain Showers | 3 mph E | 21% |
| Monday Night | 39°F | Chance Rain Showers | 2 mph SE | 28% |
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 Nov 3, 2026.