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Blue Lake, CA Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Blue Lake, a city in Humboldt County, California.

This Afternoon
67°F
Partly Sunny
Partly sunny. High near 67, with temperatures falling to around 62 in the afternoon. East northeast wind around 2 mph.

7-day forecast for Blue Lake

WhenTempForecastWindPrecip
This Afternoon 67°F Partly Sunny 2 mph ENE 2%
Tonight 42°F Partly Cloudy 3 mph E 2%
Wednesday 62°F Partly Sunny then Slight Chance Light Rain 2 to 6 mph E 18%
Wednesday Night 44°F Slight Chance Light Rain then Patchy Fog 0 to 3 mph WNW 18%
Thursday 63°F Patchy Fog 1 to 7 mph SW 4%
Thursday Night 42°F Areas Of Fog 0 to 5 mph E 0%
Friday 64°F Mostly Sunny 0 to 3 mph W 0%
Friday Night 44°F Mostly Clear 2 mph ENE 0%
Saturday 66°F Mostly Sunny 0 to 3 mph S 3%
Saturday Night 47°F Slight Chance Light Rain 1 to 5 mph SSE 22%
Sunday 63°F Slight Chance Light Rain 0 to 3 mph N 22%
Sunday Night 46°F Areas Of Fog 2 mph E 17%
Monday 62°F Areas Of Fog 0 to 3 mph SW 17%
Monday Night 44°F Slight Chance Light Rain 3 mph SSE 22%

Forecast source: National Weather Service (api.weather.gov) for Blue Lake (40.881, -123.995). Updated through the day.

Growing snapshot for Blue Lake

Last spring frost
Feb 22
First fall frost
Dec 7
Growing season
293 days
Hardiness zone
9b

More local growing data for Blue Lake: nearby ZIP 95521 weather · frost dates · planting calendar · California frost dates

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Climate data from the nearest NOAA station, Eureka Wfo Woodley Island, Ca (6.4 mi from Blue Lake). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.