Harman US

Seattle, WA Weather & Growing Conditions

Today
83°F
Sunny then Areas Of Smoke
Areas of smoke after 2pm. Sunny, with a high near 83. North wind around 10 mph.

7-day forecast

WhenTempForecastWindPrecip
Today 83°F Sunny then Areas Of Smoke 10 mph N 0%
Tonight 60°F Patchy Smoke 3 to 9 mph NNE 0%
Wednesday 87°F Sunny then Patchy Smoke 3 to 9 mph N 0%
Wednesday Night 61°F Clear 1 to 8 mph N 0%
Thursday 88°F Sunny 1 to 7 mph NNW 0%
Thursday Night 62°F Mostly Clear 2 to 7 mph WSW 0%
Friday 85°F Sunny 6 mph SW 0%
Friday Night 60°F Mostly Clear 1 to 7 mph NNE 0%
Saturday 82°F Sunny 1 to 7 mph WSW 0%
Saturday Night 59°F Mostly Clear 2 to 8 mph NE 1%
Sunday 78°F Sunny 5 mph WSW 1%
Sunday Night 58°F Mostly Clear 5 mph N 1%
Monday 77°F Mostly Sunny 5 mph WNW 1%
Monday Night 58°F Partly Cloudy 5 mph NNE 0%

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

Growing snapshot for Seattle, WA

Last spring frost
Mar 13
First fall frost
Nov 17
Growing season
247 days
Hardiness zone
9a

Explore more for Seattle, WA: full frost dates · planting calendar · Washington frost dates

Climate data from the nearest NOAA station, Seattle Boeing Fld, Wa (2.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.