Sammamish, WA Weather & Growing Conditions
Today
88°F
Areas Of Smoke
Areas of smoke after 8am. Sunny, with a high near 88. North wind 1 to 6 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 88°F | Areas Of Smoke | 1 to 6 mph N | 0% |
| Tonight | 58°F | Areas Of Smoke | 0 to 5 mph NE | 0% |
| Wednesday | 93°F | Areas Of Smoke | 0 to 3 mph NNW | 0% |
| Wednesday Night | 60°F | Mostly Clear | 0 to 3 mph N | 0% |
| Thursday | 93°F | Sunny | 2 mph NW | 0% |
| Thursday Night | 60°F | Mostly Clear | 2 mph NNW | 0% |
| Friday | 89°F | Sunny | 2 mph SW | 0% |
| Friday Night | 59°F | Mostly Clear | 0 to 3 mph NNW | 0% |
| Saturday | 85°F | Sunny | 0 to 3 mph NW | 0% |
| Saturday Night | 57°F | Mostly Clear | 0 to 8 mph N | 1% |
| Sunday | 80°F | Mostly Sunny | 2 mph WNW | 1% |
| Sunday Night | 56°F | Mostly Clear | 2 mph N | 0% |
| Monday | 79°F | Mostly Sunny | 2 mph NW | 1% |
| Monday Night | 56°F | Partly Cloudy | 2 mph N | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Sammamish, WA
Last spring frost
Mar 30
First fall frost
Nov 7
Growing season
223 days
Hardiness zone
8b
Explore more for Sammamish, WA: full frost dates · planting calendar · Washington frost dates
Climate data from the nearest NOAA station, Snoqualmie Falls, Wa (8.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.