Seattle, WA Weather & Growing Conditions
Overnight
57°F
Clear
Clear. Low around 57, with temperatures rising to around 59 overnight. Northeast wind around 6 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 57°F | Clear | 6 mph NE | 0% |
| Tuesday | 82°F | Sunny then Areas Of Smoke | 6 to 9 mph NNE | 0% |
| Tuesday Night | 60°F | Patchy Smoke then Clear | 3 to 9 mph NNE | 0% |
| Wednesday | 87°F | Sunny then Patchy Smoke | 3 to 8 mph N | 0% |
| Wednesday Night | 61°F | Clear | 2 to 8 mph N | 0% |
| Thursday | 87°F | Sunny | 1 to 6 mph NNW | 0% |
| Thursday Night | 62°F | Mostly Clear | 6 mph WNW | 0% |
| Friday | 85°F | Sunny | 6 mph SW | 0% |
| Friday Night | 59°F | Mostly Clear | 2 to 8 mph N | 0% |
| Saturday | 77°F | Sunny | 2 to 9 mph NNW | 0% |
| Saturday Night | 58°F | Mostly Clear | 2 to 9 mph NE | 1% |
| Sunday | 74°F | Sunny | 5 mph SW | 1% |
| Sunday Night | 57°F | Mostly Clear | 5 mph N | 1% |
| Monday | 73°F | Mostly Sunny | 2 to 6 mph WNW | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Seattle, WA
Last spring frost
Mar 8
First fall frost
Nov 23
Growing season
259 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 Sand Pt Wsfo, Wa (5.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.