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Twin Sisters Lakes Weather Forecast
| TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | MONDAY |
 | | |  |  | | |  |  | |  | |
| Smoke | Smoke | Smoke | Sunny | Mostly Clear | Mostly Clear | Mostly Clear | Chance of Showers | Chance of Showers | Chance of Showers | Partly Cloudy | Partly Cloudy |
| Lo: 55°FLo: 13°C | Hi: 89°FHi: 32°C | Lo: 55°FLo: 13°C | Hi: 76°FHi: 24°C | Lo: 46°FLo: 8°C | Hi: 69°FHi: 21°C Lo: 46°FLo: 8°C | Hi: 69°FHi: 21°C Lo: 46°FLo: 8°C | Lo: 45°FLo: 7°C | Lo: 40°FLo: 4°C | Hi: 69°FHi: 21°C Lo: 49°FLo: 9°C | Hi: 69°FHi: 21°C Lo: 49°FLo: 9°C | |
| POP: 20% | POP: 50% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 302 PM PDT Mon Aug 24 2026 
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Issued: 323 PM PDT Mon Aug 24 2026
Key Messages
- Above-normal temperatures through Wednesday as an upper- level ridge of high pressure builds overhead then shifts east to the northern Rockies.
- Very low chance (5-15%) of showers and thunderstorms for the southern Blue Mountains this afternoon/evening, and for the northern Blue Mountains Tuesday afternoon/evening.
- Breezy westerly winds Wednesday, with locally medium-high probability (50-80%) of Red Flag conditions in the eastern Columbia River Gorge and western half of the lower Colu...