Ione, WA Weather & Growing Conditions
Today
37°F
Sunny
Sunny. High near 37, with temperatures falling to around 32 in the afternoon. Southwest wind around 3 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 37°F | Sunny | 3 mph SW | 1% |
| Tonight | 28°F | Mostly Cloudy then Snow Showers | 6 mph S | 91% |
| Thursday | 33°F | Snow Showers then Mostly Cloudy | 5 mph SW | 91% |
| Thursday Night | 29°F | Mostly Cloudy | 6 mph SW | 9% |
| Friday | 32°F | Slight Chance Snow Showers | 6 mph S | 16% |
| Friday Night | 31°F | Chance Rain And Snow Showers | 5 to 8 mph SE | 25% |
| Saturday | 38°F | Mostly Cloudy | 2 to 6 mph E | 14% |
| Saturday Night | 34°F | Mostly Cloudy then Chance Rain Showers | 2 to 12 mph E | 40% |
| Sunday | 37°F | Chance Rain And Snow Showers | 5 to 12 mph S | 40% |
| Sunday Night | 31°F | Mostly Cloudy | 7 mph NW | 13% |
| Monday | 34°F | Partly Sunny then Slight Chance Snow Showers | 5 mph NE | 15% |
| Monday Night | 31°F | Chance Snow Showers | 5 mph NE | 38% |
| Tuesday | 37°F | Chance Snow Showers then Chance Rain Showers | 5 mph S | 38% |
| Tuesday Night | 34°F | Chance Rain And Snow Showers | 3 to 7 mph N | 32% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Ione, WA
Last spring frost
May 4
First fall frost
Oct 4
Growing season
153 days
Hardiness zone
6a
Explore more for Ione, WA: full frost dates · planting calendar · Washington frost dates
Climate data from the nearest NOAA station, Boundary Dam, Wa (19.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.