Seattle, WA Weather & Growing Conditions
Overnight
57°F
Clear
Clear, with a low around 57. Northeast wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 57°F | Clear | 5 mph NE | 0% |
| Tuesday | 78°F | Sunny then Areas Of Smoke | 6 to 10 mph N | 0% |
| Tuesday Night | 60°F | Patchy Smoke then Clear | 3 to 9 mph NNE | 0% |
| Wednesday | 82°F | Sunny then Patchy Smoke | 3 to 9 mph N | 0% |
| Wednesday Night | 60°F | Clear | 1 to 9 mph N | 0% |
| Thursday | 82°F | Sunny | 1 to 7 mph NNW | 0% |
| Thursday Night | 61°F | Mostly Clear | 2 to 7 mph WNW | 0% |
| Friday | 81°F | Sunny | 6 mph SW | 0% |
| Friday Night | 60°F | Mostly Clear | 1 to 8 mph NNE | 0% |
| Saturday | 76°F | Sunny | 1 to 9 mph NW | 0% |
| Saturday Night | 58°F | Mostly Clear | 2 to 9 mph NE | 1% |
| Sunday | 72°F | Sunny | 5 mph SW | 1% |
| Sunday Night | 58°F | Mostly Clear | 5 mph N | 1% |
| Monday | 72°F | Mostly Sunny | 2 to 6 mph W | 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 (5.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.