Trinidad, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Trinidad, a city in Humboldt County, California.
This Afternoon
57°F
Cloudy
Cloudy, with a high near 57. Northwest wind 2 to 6 mph.
7-day forecast for Trinidad
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 57°F | Cloudy | 2 to 6 mph NW | 11% |
| Tonight | 49°F | Mostly Cloudy | 3 to 8 mph N | 11% |
| Thursday | 57°F | Mostly Sunny | 8 to 13 mph N | 0% |
| Thursday Night | 47°F | Partly Cloudy | 5 to 12 mph NNE | 0% |
| Friday | 57°F | Mostly Sunny | 2 to 7 mph NNE | 0% |
| Friday Night | 48°F | Mostly Clear | 7 mph NE | 0% |
| Saturday | 58°F | Mostly Sunny | 6 mph SSE | 6% |
| Saturday Night | 51°F | Slight Chance Light Rain | 5 to 10 mph SSE | 24% |
| Sunday | 57°F | Slight Chance Light Rain | 2 to 7 mph NNE | 24% |
| Sunday Night | 50°F | Mostly Cloudy | 5 mph NE | 4% |
| Monday | 57°F | Slight Chance Light Rain | 6 mph S | 15% |
| Monday Night | 49°F | Slight Chance Light Rain | 5 to 8 mph SSE | 20% |
| Tuesday | 58°F | Chance Light Rain | 6 to 10 mph SSE | 27% |
| Tuesday Night | 51°F | Chance Light Rain | 8 to 20 mph S | 37% |
Forecast source: National Weather Service (api.weather.gov) for Trinidad (41.058, -124.143). Updated through the day.
Growing snapshot for Trinidad
Last spring frost
Mar 8
First fall frost
Nov 30
Growing season
262 days
Hardiness zone
9b
More local growing data for Trinidad: nearby ZIP 95570 weather · frost dates · planting calendar · California frost dates
Nearby towns & communities
Alderpoint
Arcata
Bayview
Benbow
Big Lagoon
Blue Lake
Cutten
Eureka
Fairhaven
Ferndale
Fieldbrook
Fields Landing
Fortuna
Garberville
Hoopa
Humboldt Hill
Hydesville
Indianola
Kep'el
Loleta
Manila
McKinleyville
Miranda
Myers Flat
Myrtletown
Orick
Phillipsville
Pine Hills
Redcrest
Redway
Climate data from the nearest NOAA station, Arcata Eureka Ap, Ca (9.5 mi from Trinidad). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.