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| REST OF TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY |
 | | |  | |  |  |  | |  |  |  |
| Patchy Fog | Patchy Fog | Patchy Fog | Clearing | Patchy Fog | Partly Sunny | Mostly Cloudy | Rain | Rain | Chance of T-Storm | Partly Cloudy | Mostly Sunny |
| Lo: 51°FLo: 11°C | Hi: 71°FHi: 22°C | Lo: 51°FLo: 11°C | Hi: 71°FHi: 22°C | Lo: 49°FLo: 9°C | Hi: 71°FHi: 22°C | Lo: 50°FLo: 10°C | Hi: 69°FHi: 21°C | Lo: 50°FLo: 10°C | Hi: 61°FHi: 16°C | Lo: 49°FLo: 9°C | Hi: 65°FHi: 18°C |
| POP: 60% | POP: 60% | POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 202 AM PDT Mon Sep 21 2026 
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Issued: 330 AM PDT Mon Sep 21 2026
Aviation
...Through 06Z Tuesday...As of 1030Z Monday, low marine stratus remained in place along the coast with ceilings around 1000 ft. Areas of fog have developed over the southern Willamette Valley, including at KEUG where surface visibilities are falling as low as 1/4-1/2 SM at times. Similar to previous mornings, expect areas of fog and low stratus to expand in coverage over the Willamette Valley between 12-18Z Monday, bringing increasing chances for LIFR to IFR flight conditions. However, f...