Roslyn, WA Weather & Growing Conditions
Today
78°F
Areas Of Smoke
Areas of smoke. Sunny, with a high near 78. Southeast wind 5 to 9 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 78°F | Areas Of Smoke | 5 to 9 mph SE | 0% |
| Tonight | 55°F | Areas Of Smoke | 5 mph N | 0% |
| Wednesday | 83°F | Areas Of Smoke | 3 to 7 mph S | 0% |
| Wednesday Night | 59°F | Areas Of Smoke then Mostly Clear | 7 mph NW | 0% |
| Thursday | 85°F | Sunny | 6 to 10 mph W | 0% |
| Thursday Night | 58°F | Mostly Clear | 8 to 12 mph NW | 0% |
| Friday | 79°F | Sunny | 13 mph NW | 0% |
| Friday Night | 54°F | Mostly Clear | 12 mph NW | 0% |
| Saturday | 74°F | Sunny | 8 to 13 mph NW | 0% |
| Saturday Night | 50°F | Mostly Clear | 13 mph W | 0% |
| Sunday | 70°F | Sunny | 12 mph W | 0% |
| Sunday Night | 48°F | Mostly Clear | 13 mph NW | 0% |
| Monday | 70°F | Sunny | 8 to 12 mph NW | 0% |
| Monday Night | 48°F | Mostly Clear | 12 mph NW | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Roslyn, WA
Last spring frost
May 9
First fall frost
Oct 6
Growing season
151 days
Hardiness zone
7a
Explore more for Roslyn, WA: full frost dates · planting calendar · Washington frost dates
Climate data from the nearest NOAA station, Easton, Wa (10.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.