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Multnomah County, OR Weather Forecast
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Multnomah County Weather Forecast
| REST OF TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY |
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| Chance of Showers | Chance of T-Storm | Patchy Fog | Patchy Fog | Partly Cloudy | Clearing | Partly Cloudy | Partly Sunny | Partly Cloudy | Partly Sunny | Chance of Rain | Chance of Rain |
| Lo: 55°FLo: 13°C | Hi: 61°FHi: 16°C | Lo: 49°FLo: 9°C | Hi: 65°FHi: 18°C | Lo: 49°FLo: 9°C | Hi: 69°FHi: 21°C | Lo: 49°FLo: 9°C | Hi: 69°FHi: 21°C | Lo: 50°FLo: 10°C | Hi: 65°FHi: 18°C | Lo: 51°FLo: 11°C | Hi: 69°FHi: 21°C |
| POP: 20% | POP: 100% | POP: 20% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 201 AM PDT Fri Sep 25 2026 
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Issued: 411 AM PDT Fri Sep 25 2026
Discussion
..Now through Thursday...This morning the core of an upper level low pressure system is rapidly approaching far northwest Oregon and southwest Washington with the region transitioning to a post-frontal airmass as the initial cold front which brought widespread stratiform rainfall shifted east of the Cascade crest-line. The immediate focus this morning regards gusty southwest to south winds associated with this system which are already being observed along the coast and in portions of t...