Bonanza, OR Weather Forecast
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Bonanza Weather Forecast
| TODAY | TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | MONDAY | TUESDAY |
| Sunny | Clear | Sunny | Clear | Sunny | Partly Cloudy | Partly Cloudy | Mostly Clear | Mostly Clear | Mostly Clear | Sunny |
| Hi: 83°FHi: 28°C | Lo: 50°FLo: 10°C | Hi: 83°FHi: 28°C | Lo: 46°FLo: 8°C | Hi: 73°FHi: 23°C | Hi: 66°FHi: 19°C Lo: 36°FLo: 2°C | Hi: 66°FHi: 19°C Lo: 36°FLo: 2°C | Hi: 56°FHi: 13°C Lo: 30°FLo: -1°C | Hi: 56°FHi: 13°C Lo: 30°FLo: -1°C | Hi: 56°FHi: 13°C Lo: 30°FLo: -1°C | Hi: 63°FHi: 17°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 242 AM PDT Wed Oct 07 2026 

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Issued: 217 AM PDT Wed Oct 7 2026
Key Messages
- Warm temperatures will persist through the week with new high temperature records being set over some stations.
- A cold front pass through the area Friday into Friday night with breezy winds and a very low chance of rain.
- Much cooler temperatures are then expected through the weekend with below normal overnight lows, and could produce widespread frost for valleys west of the Cascades.
Discussion
...A broad upper-level ridge remains in control over the western United States, with well ab...
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