Bonanza, OR Weather & Growing Conditions
Overnight
40°F
Clear
Clear. Low around 40, with temperatures rising to around 42 overnight. East northeast wind around 3 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 40°F | Clear | 3 mph ENE | 0% |
| Saturday | 75°F | Sunny | 1 to 5 mph S | 0% |
| Saturday Night | 41°F | Mostly Clear | 7 mph NE | 0% |
| Sunday | 79°F | Mostly Sunny | 1 to 6 mph E | 0% |
| Sunday Night | 44°F | Partly Cloudy | 1 to 5 mph NNE | 0% |
| Monday | 80°F | Sunny | 1 to 6 mph NW | 0% |
| Monday Night | 44°F | Mostly Clear | 0 to 6 mph NNW | 0% |
| Tuesday | 79°F | Sunny | 0 to 7 mph WNW | 0% |
| Tuesday Night | 42°F | Mostly Clear | 0 to 7 mph NW | 0% |
| Wednesday | 78°F | Sunny | 0 to 7 mph W | 1% |
| Wednesday Night | 42°F | Partly Cloudy | 0 to 6 mph N | 1% |
| Thursday | 78°F | Mostly Sunny | 1 to 9 mph SSE | 1% |
| Thursday Night | 42°F | Partly Cloudy | 0 to 9 mph WNW | 1% |
| Friday | 73°F | Mostly Sunny | 1 to 12 mph S | 3% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Bonanza, OR
Last spring frost
May 31
First fall frost
Sep 21
Growing season
114 days
Hardiness zone
6b
Explore more for Bonanza, OR: full frost dates · planting calendar · Oregon frost dates
Climate data from the nearest NOAA station, Gerber Dam, Or (9.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.