Lake Cassidy, WA Weather & Growing Conditions
Today
86°F
Sunny then Areas Of Smoke
Areas of smoke after noon. Sunny, with a high near 86. Northwest wind 1 to 7 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 86°F | Sunny then Areas Of Smoke | 1 to 7 mph NW | 0% |
| Tonight | 55°F | Patchy Smoke then Mostly Clear | 1 to 6 mph N | 0% |
| Wednesday | 89°F | Patchy Smoke | 1 to 5 mph NW | 0% |
| Wednesday Night | 58°F | Clear | 1 to 5 mph NNE | 0% |
| Thursday | 90°F | Sunny | 0 to 3 mph W | 0% |
| Thursday Night | 59°F | Mostly Clear | 3 mph NNE | 0% |
| Friday | 87°F | Sunny | 1 to 5 mph SW | 0% |
| Friday Night | 57°F | Mostly Clear | 5 mph NNW | 0% |
| Saturday | 82°F | Sunny | 1 to 7 mph NW | 0% |
| Saturday Night | 55°F | Mostly Clear | 1 to 7 mph N | 0% |
| Sunday | 79°F | Mostly Sunny | 1 to 5 mph WNW | 0% |
| Sunday Night | 54°F | Mostly Clear | 1 to 5 mph N | 2% |
| Monday | 79°F | Mostly Sunny | 0 to 5 mph NW | 2% |
| Monday Night | 54°F | Partly Cloudy | 1 to 5 mph N | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Lake Cassidy, WA
Last spring frost
Mar 24
First fall frost
Nov 2
Growing season
223 days
Hardiness zone
8b
Explore more for Lake Cassidy, WA: full frost dates · planting calendar · Washington frost dates
Climate data from the nearest NOAA station, Everett, Wa (6.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.