Rock Island, WA Weather & Growing Conditions
Today
84°F
Haze
Haze and areas of smoke. Sunny, with a high near 84. Northeast wind around 7 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 84°F | Haze | 7 mph NE | 0% |
| Tonight | 63°F | Haze | 8 mph SW | 0% |
| Wednesday | 89°F | Smoke | 5 to 13 mph NE | 0% |
| Wednesday Night | 66°F | Areas Of Smoke | 7 to 10 mph W | 0% |
| Thursday | 93°F | Sunny | 3 to 10 mph NW | 0% |
| Thursday Night | 68°F | Mostly Clear | 8 to 15 mph W | 0% |
| Friday | 94°F | Sunny | 5 to 20 mph NW | 0% |
| Friday Night | 67°F | Mostly Clear | 16 to 20 mph NW | 0% |
| Saturday | 90°F | Sunny | 7 to 22 mph NW | 0% |
| Saturday Night | 64°F | Mostly Clear | 23 mph NW | 0% |
| Sunday | 85°F | Sunny | 8 to 22 mph NW | 0% |
| Sunday Night | 64°F | Mostly Clear | 17 to 22 mph NW | 0% |
| Monday | 86°F | Sunny | 5 to 18 mph NW | 0% |
| Monday Night | 64°F | Mostly Clear | 9 to 18 mph W | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Rock Island, WA
Last spring frost
Apr 8
First fall frost
Oct 24
Growing season
200 days
Hardiness zone
7a
Explore more for Rock Island, WA: full frost dates · planting calendar · Washington frost dates
Climate data from the nearest NOAA station, Wenatchee Pangborn Ap, Wa (6.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.