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Simonson Pond Weather Forecast
| TODAY | TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT |
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| Mostly Cloudy | Mostly Cloudy | Drizzle | Patchy Fog | Patchy Fog | Mostly Clear | Sunny | Clear | Sunny | Mostly Clear | Mostly Sunny | Partly Cloudy |
| Hi: 65°FHi: 18°C | Lo: 53°FLo: 12°C | Hi: 66°FHi: 19°C | Lo: 50°FLo: 10°C | Hi: 70°FHi: 21°C | Lo: 51°FLo: 11°C | Hi: 75°FHi: 24°C | Lo: 51°FLo: 11°C | Hi: 73°FHi: 23°C | Lo: 53°FLo: 12°C | Hi: 70°FHi: 21°C | Lo: 51°FLo: 11°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 236 AM PDT Mon Sep 14 2026 
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Issued: 250 AM PDT Mon Sep 14 2026
Aviation
... Northwest flow aloft will shift more westerly late tonight as a weak upper trough dips southward into Western Washington. Low level onshore flow will weaken today. Residual low level moisture from a departing system along with onshore flow will lead to a mixed bag of MVFR and VFR ceilings this morning. Ceilings will gradually lift back to VFR most areas after 21Z this afternoon.
KSEA...Periods of high end MVFR ceilings are expected this morning before lifting to VFR this afternoon. Su...