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Fort Jones, CA Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Fort Jones, a city in Siskiyou County, California.

Tonight
45°F
Clear
Clear. Low around 45, with temperatures rising to around 47 overnight. East northeast wind around 3 mph.

7-day forecast for Fort Jones

WhenTempForecastWindPrecip
Tonight 45°F Clear 3 mph ENE 0%
Saturday 84°F Sunny 2 mph SSW 0%
Saturday Night 48°F Partly Cloudy 0 to 3 mph ENE 0%
Sunday 87°F Mostly Sunny 1 to 8 mph N 0%
Sunday Night 51°F Mostly Clear 1 to 8 mph W 0%
Monday 88°F Sunny 1 to 7 mph ENE 0%
Monday Night 50°F Mostly Clear 2 to 7 mph ENE 0%
Tuesday 86°F Sunny 1 to 8 mph NE 0%
Tuesday Night 47°F Mostly Clear 2 to 8 mph N 0%
Wednesday 85°F Sunny 1 to 6 mph NNE 0%
Wednesday Night 48°F Mostly Clear 2 to 6 mph WSW 0%
Thursday 85°F Sunny 1 to 7 mph ENE 0%
Thursday Night 48°F Partly Cloudy 3 to 7 mph W 1%
Friday 79°F Sunny 1 to 7 mph NNE 4%

Forecast source: National Weather Service (api.weather.gov) for Fort Jones (41.608, -122.841). Updated through the day.

Growing snapshot for Fort Jones

Last spring frost
May 20
First fall frost
Oct 5
Growing season
135 days
Hardiness zone
8a

More local growing data for Fort Jones: nearby ZIP 96037 weather · frost dates · planting calendar · California frost dates

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Climate data from the nearest NOAA station, Callahan, Ca (15.2 mi from Fort Jones). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.