Herron Island, WA Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Herron Island, a community in Pierce County, Washington.

Overnight

51°F

Cloudy

Cloudy, with a low around 51. West southwest wind around 2 mph.

7-day forecast for Herron Island

When	Temp	Forecast	Wind	Precip
Overnight	51°F	Cloudy	2 mph WSW	0%
Saturday	72°F	Partly Sunny	2 mph S	0%
Saturday Night	51°F	Mostly Clear	3 mph NW	0%
Sunday	73°F	Mostly Sunny	1 to 5 mph NNE	0%
Sunday Night	51°F	Mostly Clear	1 to 5 mph N	0%
Monday	71°F	Mostly Sunny	3 mph W	0%
Monday Night	52°F	Partly Cloudy	0 to 3 mph N	0%
Tuesday	69°F	Partly Sunny	0 to 3 mph WSW	0%
Tuesday Night	50°F	Mostly Cloudy	3 mph SW	3%
Wednesday	67°F	Partly Sunny	1 to 7 mph SW	7%
Wednesday Night	51°F	Mostly Cloudy	1 to 7 mph NW	5%
Thursday	65°F	Mostly Cloudy then Slight Chance Light Rain	1 to 7 mph NNE	21%
Thursday Night	50°F	Slight Chance Light Rain	1 to 7 mph NNW	24%
Friday	64°F	Mostly Sunny	1 to 8 mph NNW	12%

Forecast source: National Weather Service (api.weather.gov) for Herron Island (47.267, -122.832). Updated through the day.

Growing snapshot for Herron Island

Last spring frost

Mar 11

First fall frost

Nov 21

Growing season

254 days

Hardiness zone

More local growing data for Herron Island: nearby ZIP 98394 weather · frost dates · planting calendar · Washington frost dates

Nearby towns & communities

Alder Alderton Anderson Island Artondale Bonney Lake Browns Point Buckley Canterwood Carbonado Clear Lake Clover Creek Crocker Dash Point DuPont Eatonville Edgewood Elbe Elk Plain Enumclaw Fife Fife Heights Fircrest Fort Lewis Fox Island Frederickson Gig Harbor Graham Home Kapowsin Ketron Island

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Climate data from the nearest NOAA station, Tacoma Narrows Ap, Wa (10.7 mi from Herron Island). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.