Seattle, WA Weather & Growing Conditions
Overnight
58°F
Clear
Clear, with a low around 58. North northeast wind around 6 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 58°F | Clear | 6 mph NNE | 0% |
| Tuesday | 84°F | Sunny then Areas Of Smoke | 6 to 9 mph N | 0% |
| Tuesday Night | 61°F | Areas Of Smoke | 1 to 8 mph NNE | 0% |
| Wednesday | 89°F | Sunny then Patchy Smoke | 3 to 8 mph N | 0% |
| Wednesday Night | 62°F | Clear | 0 to 8 mph N | 0% |
| Thursday | 90°F | Sunny | 0 to 7 mph NW | 0% |
| Thursday Night | 63°F | Mostly Clear | 1 to 7 mph W | 0% |
| Friday | 87°F | Sunny | 5 mph SW | 0% |
| Friday Night | 62°F | Mostly Clear | 1 to 7 mph NNE | 0% |
| Saturday | 84°F | Sunny | 1 to 7 mph WSW | 0% |
| Saturday Night | 60°F | Mostly Clear | 2 to 7 mph NE | 1% |
| Sunday | 79°F | Mostly Sunny | 5 mph WSW | 1% |
| Sunday Night | 59°F | Mostly Clear | 5 mph N | 1% |
| Monday | 79°F | Mostly Sunny | 5 mph WSW | 1% |
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 (0.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.