Bonanza, OR Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Bonanza, a town in Klamath County, Oregon.
Today
50°F
Partly Sunny
Partly sunny. High near 50, with temperatures falling to around 47 in the afternoon. South southwest wind around 3 mph.
7-day forecast for Bonanza
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 50°F | Partly Sunny | 3 mph SSW | 2% |
| Tonight | 27°F | Mostly Cloudy | 3 mph W | 2% |
| Thursday | 52°F | Mostly Sunny | 2 mph ESE | 0% |
| Thursday Night | 25°F | Mostly Clear | 0 to 3 mph ENE | 0% |
| Friday | 59°F | Mostly Sunny | 2 mph ESE | 0% |
| Friday Night | 28°F | Mostly Clear | 3 mph E | 0% |
| Saturday | 64°F | Mostly Sunny | 2 to 9 mph SE | 0% |
| Saturday Night | 30°F | Partly Cloudy | 3 to 7 mph SSE | 1% |
| Sunday | 58°F | Partly Sunny | 3 mph S | 1% |
| Sunday Night | 28°F | Mostly Cloudy | 3 mph NE | 0% |
| Monday | 58°F | Partly Sunny | 3 mph SSE | 3% |
| Monday Night | 27°F | Partly Cloudy | 2 mph SE | 6% |
| Tuesday | 58°F | Mostly Sunny | 2 to 6 mph SSE | 9% |
| Tuesday Night | 30°F | Slight Chance Light Rain | 5 to 17 mph SSE | 18% |
Forecast source: National Weather Service (api.weather.gov) for Bonanza (42.200, -121.407). Updated through the day.
Growing snapshot for Bonanza
Last spring frost
May 31
First fall frost
Sep 21
Growing season
114 days
Hardiness zone
6b
More local growing data for Bonanza: nearby ZIP 97623 weather · frost dates · planting calendar · Oregon frost dates
Nearby towns & communities
Altamont
Beatty
Beaver Marsh
Bly
Chemult
Chiloquin
Crescent
Crescent Lake
Falcon Heights
Fort Klamath
Gilchrist
Keno
Klamath Falls
Malin
Merrill
Oregon Shores
Rocky Point
Running Y Ranch
Sprague River
Climate data from the nearest NOAA station, Gerber Dam, Or (9.3 mi from Bonanza). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.