Big Lagoon, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Big Lagoon, a community in Humboldt County, California.
Tonight
50°F
Mostly Cloudy
Mostly cloudy, with a low around 50. North wind 2 to 7 mph.
7-day forecast for Big Lagoon
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 50°F | Mostly Cloudy | 2 to 7 mph N | 2% |
| Saturday | 60°F | Patchy Fog then Mostly Cloudy | 1 to 8 mph N | 2% |
| Saturday Night | 50°F | Patchy Fog | 1 to 7 mph NE | 3% |
| Sunday | 61°F | Mostly Cloudy | 2 to 7 mph N | 0% |
| Sunday Night | 51°F | Mostly Cloudy | 2 to 7 mph NNW | 0% |
| Monday | 62°F | Partly Sunny | 2 to 6 mph NNW | 0% |
| Monday Night | 51°F | Partly Cloudy | 5 mph NNE | 0% |
| Tuesday | 62°F | Mostly Sunny | 2 to 7 mph N | 0% |
| Tuesday Night | 50°F | Partly Cloudy | 3 to 7 mph N | 0% |
| Wednesday | 63°F | Mostly Sunny | 6 mph N | 0% |
| Wednesday Night | 51°F | Partly Cloudy | 2 to 6 mph NNE | 0% |
| Thursday | 64°F | Partly Sunny | 5 mph N | 2% |
| Thursday Night | 52°F | Mostly Cloudy | 3 mph NNE | 6% |
| Friday | 62°F | Partly Sunny | 3 to 7 mph N | 6% |
Forecast source: National Weather Service (api.weather.gov) for Big Lagoon (41.159, -124.130). Updated through the day.
Growing snapshot for Big Lagoon
Last spring frost
Mar 8
First fall frost
Nov 30
Growing season
262 days
Hardiness zone
9b
More local growing data for Big Lagoon: nearby ZIP 95570 weather · frost dates · planting calendar · California frost dates
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Climate data from the nearest NOAA station, Arcata Eureka Ap, Ca (9.5 mi from Big Lagoon). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.