Harman US

Eureka, CA Weather & Growing Conditions

Tonight
53°F
Cloudy
Cloudy, with a low around 53. North northwest wind around 5 mph.

7-day forecast

WhenTempForecastWindPrecip
Tonight 53°F Cloudy 5 mph NNW 1%
Saturday 62°F Cloudy 3 to 7 mph NNW 1%
Saturday Night 53°F Cloudy 2 to 6 mph NNW 5%
Sunday 62°F Cloudy 2 to 7 mph NNW 5%
Sunday Night 53°F Mostly Cloudy 2 to 7 mph NNW 2%
Monday 64°F Mostly Cloudy 3 to 7 mph NNW 0%
Monday Night 53°F Mostly Cloudy 2 to 7 mph N 1%
Tuesday 64°F Partly Sunny 3 to 9 mph N 0%
Tuesday Night 52°F Mostly Cloudy 3 to 9 mph N 0%
Wednesday 65°F Partly Sunny 3 to 8 mph NNW 0%
Wednesday Night 53°F Mostly Cloudy 2 to 8 mph N 0%
Thursday 65°F Partly Sunny 2 to 7 mph NNW 1%
Thursday Night 53°F Mostly Cloudy 2 to 7 mph NNW 2%
Friday 64°F Partly Sunny 2 to 9 mph NNW 3%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Eureka, CA

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

Explore more for Eureka, CA: full frost dates · planting calendar · California frost dates

Climate data from the nearest NOAA station, Eureka Wfo Woodley Island, Ca (1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.