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 6 to 9 mph.

7-day forecast

WhenTempForecastWindPrecip
Today 83°F Sunny then Areas Of Smoke 6 to 9 mph N 0%
Tonight 60°F Patchy Smoke then Clear 3 to 8 mph NNE 0%
Wednesday 88°F Sunny then Patchy Smoke 3 to 8 mph N 0%
Wednesday Night 61°F Clear 1 to 7 mph N 0%
Thursday 88°F Sunny 1 to 6 mph NNW 0%
Thursday Night 61°F Mostly Clear 6 mph WNW 0%
Friday 85°F Sunny 5 mph SW 0%
Friday Night 60°F Mostly Clear 1 to 7 mph N 0%
Saturday 80°F Sunny 1 to 8 mph NW 0%
Saturday Night 58°F Mostly Clear 2 to 8 mph NE 1%
Sunday 76°F Sunny 5 mph SW 1%
Sunday Night 58°F Mostly Clear 5 mph NNE 1%
Monday 75°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 (5.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.