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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

WhenTempForecastWindPrecip
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

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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.