Fairhaven, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Fairhaven, a community in Humboldt County, California.
Today
57°F
Mostly Cloudy
Mostly cloudy, with a high near 57. North northwest wind around 6 mph.
7-day forecast for Fairhaven
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 57°F | Mostly Cloudy | 6 mph NNW | 7% |
| Tonight | 50°F | Cloudy | 2 to 8 mph N | 7% |
| Thursday | 57°F | Mostly Sunny | 8 to 12 mph N | 0% |
| Thursday Night | 49°F | Partly Cloudy | 3 to 8 mph NNE | 0% |
| Friday | 57°F | Mostly Sunny | 2 to 6 mph NNE | 0% |
| Friday Night | 50°F | Mostly Clear | 5 mph NE | 0% |
| Saturday | 58°F | Mostly Sunny | 3 mph SSE | 2% |
| Saturday Night | 52°F | Slight Chance Light Rain | 6 mph SSE | 17% |
| Sunday | 57°F | Slight Chance Light Rain | 5 mph NNE | 17% |
| Sunday Night | 51°F | Mostly Cloudy | 3 mph NE | 2% |
| Monday | 58°F | Slight Chance Light Rain | 5 mph S | 15% |
| Monday Night | 50°F | Slight Chance Light Rain | 5 mph SE | 17% |
| Tuesday | 58°F | Chance Light Rain | 6 mph SSE | 25% |
| Tuesday Night | 52°F | Chance Light Rain | 5 to 10 mph S | 37% |
Forecast source: National Weather Service (api.weather.gov) for Fairhaven (40.788, -124.201). Updated through the day.
Growing snapshot for Fairhaven
Last spring frost
Feb 22
First fall frost
Dec 7
Growing season
293 days
Hardiness zone
9b
More local growing data for Fairhaven: nearby ZIP 95564 weather · frost dates · planting calendar · California frost dates
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Climate data from the nearest NOAA station, Eureka Wfo Woodley Island, Ca (2.7 mi from Fairhaven). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.