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Highway Waterhole Weather Forecast
| REST OF TODAY | TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | MONDAY |
 | | |  |  |  |  |  |  | | | |
| Smoke | Smoke | Smoke | Mostly Clear | Sunny | Mostly Cloudy | Mostly Cloudy | Partly Cloudy | Partly Cloudy | Mostly Clear | Mostly Clear | Mostly Clear |
| Hi: 85°FHi: 29°C | Lo: 50°FLo: 10°C | Hi: 86°FHi: 30°C | Lo: 59°FLo: 15°C | Hi: 90°FHi: 32°C | Hi: 86°FHi: 30°C Lo: 56°FLo: 13°C | Hi: 86°FHi: 30°C Lo: 56°FLo: 13°C | Hi: 89°FHi: 32°C Lo: 59°FLo: 15°C | Hi: 89°FHi: 32°C Lo: 59°FLo: 15°C | Hi: 89°FHi: 32°C Lo: 46°FLo: 8°C | Hi: 89°FHi: 32°C Lo: 46°FLo: 8°C | Hi: 89°FHi: 32°C Lo: 46°FLo: 8°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 1132 AM PDT Tue Aug 18 2026 
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Highway Waterhole Forecast Discussion
Issued: 957 AM PDT Tue Aug 18 2026
Key Messages
- Gusty west winds and low relative humidity will combine to create critical fire weather conditions This Afternoon, mainly across the Columbia Basin of Oregon.
- Another chance of showers and thunderstorms and gusty winds toward the of the week, associated with an upper low.
Discussion
... An upper level split flow pattern in place Today will shift over the next 24 hours to more upper southwest flow over the western half of the region and ridging across the I...