Dayton, OR Weather Forecast
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Dayton Weather Forecast
| THIS AFTERNOON | TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT |
| Sunny | Mostly Clear | Sunny | Mostly Clear | Patchy Fog | Clearing | Sunny | Patchy Fog | Chance of Rain | Chance of Rain | Chance of Rain | Chance of Rain |
| Hi: 71°FHi: 22°C | Lo: 45°FLo: 7°C | Hi: 75°FHi: 24°C | Lo: 41°FLo: 5°C | Hi: 65°FHi: 18°C | Lo: 39°FLo: 4°C | Hi: 61°FHi: 16°C | Lo: 39°FLo: 4°C | Hi: 61°FHi: 16°C | Lo: 41°FLo: 5°C | Hi: 61°FHi: 16°C | Lo: 40°FLo: 4°C |
| POP: 20% | POP: 50% | POP: 40% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 202 PM PDT Tue Oct 20 2026 

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Meteorlogic Glosserator
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Issued: 255 PM PDT Tue Oct 20 2026
Discussion
...Now through Monday night...Current satellite and surface weather observations from early Tuesday afternoon depicted mostly clear skies aside from some scattered thin high clouds along with increasing low-level offshore flow. As of 2 PM Tuesday, winds were gusting as high as 30-40 mph in wind-prone areas of the western Columbia River Gorge and Troutdale/northern Gresham area, except up to 45 mph at Crown Point. The observed pressure gradient between Troutdale and the Dalles was aroun...
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