Big Lagoon, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Big Lagoon, a community in Humboldt County, California.
Today
69°F
Patchy Smoke
Patchy smoke after 11am. Mostly sunny, with a high near 69. Southwest wind 2 to 7 mph.
7-day forecast for Big Lagoon
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 69°F | Patchy Smoke | 2 to 7 mph SW | 0% |
| Tonight | 57°F | Patchy Smoke then Patchy Fog | 1 to 8 mph SSW | 0% |
| Wednesday | 69°F | Patchy Fog then Mostly Sunny | 1 to 6 mph SW | 0% |
| Wednesday Night | 55°F | Partly Cloudy | 3 mph NNW | 0% |
| Thursday | 67°F | Partly Sunny | 3 mph WNW | 0% |
| Thursday Night | 54°F | Mostly Cloudy | 3 mph N | 0% |
| Friday | 68°F | Partly Sunny | 1 to 5 mph NNW | 0% |
| Friday Night | 55°F | Partly Cloudy | 1 to 5 mph N | 0% |
| Saturday | 67°F | Mostly Sunny | 2 to 7 mph NNW | 0% |
| Saturday Night | 54°F | Partly Cloudy | 2 to 7 mph N | 0% |
| Sunday | 64°F | Mostly Sunny | 3 to 9 mph NNW | 0% |
| Sunday Night | 53°F | Partly Cloudy | 5 to 9 mph N | 0% |
| Monday | 63°F | Mostly Sunny | 5 to 9 mph NNW | 1% |
| Monday Night | 52°F | Partly Cloudy | 2 to 8 mph N | 1% |
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 Aug 4, 2026.