Roslyn, WA Weather & Growing Conditions
Tonight
32°F
Areas Of Fog
Areas of fog. Mostly clear, with a low around 32. Wind around 0 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 32°F | Areas Of Fog | 0 mph | 2% |
| Wednesday | 53°F | Areas Of Fog then Sunny | 2 mph SW | 5% |
| Wednesday Night | 36°F | Rain Showers | 0 mph | 86% |
| Thursday | 49°F | Patchy Fog then Mostly Sunny | 0 to 5 mph NW | 9% |
| Thursday Night | 33°F | Rain Showers Likely | 2 mph NW | 62% |
| Friday | 49°F | Rain Showers Likely | 1 mph NW | 62% |
| Friday Night | 36°F | Chance Rain Showers then Mostly Cloudy | 1 mph NW | 25% |
| Saturday | 53°F | Partly Sunny | 0 to 3 mph E | 7% |
| Saturday Night | 37°F | Rain Showers Likely | 0 to 3 mph NE | 65% |
| Sunday | 50°F | Rain Showers Likely | 0 to 5 mph NW | 65% |
| Sunday Night | 32°F | Mostly Cloudy | 2 mph NW | 14% |
| Monday | 49°F | Chance Rain Showers | 1 mph NE | 44% |
| Monday Night | 35°F | Chance Rain Showers | 1 mph NE | 51% |
| Tuesday | 50°F | Chance Rain Showers | 1 mph NE | 53% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Roslyn, WA
Last spring frost
May 13
First fall frost
Sep 25
Growing season
132 days
Hardiness zone
7a
Explore more for Roslyn, WA: full frost dates · planting calendar · Washington frost dates
Climate data from the nearest NOAA station, Cle Elum, Wa (4.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.