Fort Jones, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Fort Jones, a city in Siskiyou County, California.
This Afternoon
54°F
Chance Light Rain
A chance of rain before 4pm. Partly sunny. High near 54, with temperatures falling to around 50 in the afternoon. South southwest wind 2 to 6 mph. Chance of precipitation is 30%.
7-day forecast for Fort Jones
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 54°F | Chance Light Rain | 2 to 6 mph SSW | 26% |
| Tonight | 30°F | Mostly Clear | 3 mph NE | 1% |
| Wednesday | 57°F | Partly Sunny | 0 to 3 mph W | 7% |
| Wednesday Night | 31°F | Slight Chance Light Rain then Partly Cloudy | 3 mph ENE | 22% |
| Thursday | 59°F | Sunny | 1 mph SW | 0% |
| Thursday Night | 34°F | Partly Cloudy | 0 to 3 mph W | 0% |
| Friday | 66°F | Mostly Sunny | 2 mph SSE | 0% |
| Friday Night | 35°F | Mostly Clear | 0 to 3 mph SSE | 0% |
| Saturday | 72°F | Sunny | 3 mph SSE | 1% |
| Saturday Night | 37°F | Partly Cloudy | 2 to 16 mph SSW | 5% |
| Sunday | 63°F | Partly Sunny | 1 to 6 mph E | 5% |
| Sunday Night | 35°F | Mostly Cloudy | 3 mph SSW | 4% |
| Monday | 63°F | Partly Sunny | 3 mph S | 7% |
| Monday Night | 35°F | Partly Cloudy | 2 to 6 mph SSW | 14% |
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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Mount Hebron
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Weed
Yreka
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 Nov 4, 2026.