Oroville, WA Weather & Growing Conditions
This Afternoon
45°F
Partly Sunny
Partly sunny. High near 45, with temperatures falling to around 34 in the afternoon. Wind around 0 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 45°F | Partly Sunny | 0 mph | 1% |
| Tonight | 31°F | Partly Cloudy | 2 mph E | 1% |
| Wednesday | 47°F | Sunny | 2 mph SE | 1% |
| Wednesday Night | 34°F | Chance Rain Showers then Chance Rain And Snow Showers | 3 mph SE | 30% |
| Thursday | 45°F | Slight Chance Rain And Snow Showers then Partly Sunny | 3 mph S | 19% |
| Thursday Night | 32°F | Mostly Cloudy then Slight Chance Rain Showers | 2 to 9 mph S | 15% |
| Friday | 45°F | Slight Chance Rain Showers then Mostly Cloudy | 5 to 9 mph S | 15% |
| Friday Night | 33°F | Mostly Cloudy | 5 mph SE | 10% |
| Saturday | 47°F | Mostly Cloudy | 3 mph SE | 10% |
| Saturday Night | 36°F | Slight Chance Rain Showers | 1 to 13 mph SE | 23% |
| Sunday | 47°F | Slight Chance Rain Showers then Mostly Cloudy | 5 to 13 mph S | 23% |
| Sunday Night | 32°F | Mostly Cloudy | 5 mph S | 6% |
| Monday | 44°F | Partly Sunny then Chance Rain Showers | 0 to 3 mph SE | 33% |
| Monday Night | 34°F | Chance Rain And Snow Showers | 0 to 6 mph SE | 41% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Oroville, WA
Last spring frost
May 6
First fall frost
Oct 6
Growing season
151 days
Hardiness zone
6a
Explore more for Oroville, WA: full frost dates · planting calendar · Washington frost dates
Climate data from the nearest NOAA station, Tonasket 11Ne, Wa (9.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.