Weather WorldOlson Lake, WA Weather Forecast
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POP = Probability of Precipitation.
Weather Outlook Updated: 704 PM PDT Thu Oct 29 2026 
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Issued: 817 PM PDT Thu Oct 29 2026
Aviation
...An upper level trough will remain over the coastal and offshore waters into Friday producing south to southwest flow aloft over Western Washington. Scattered showers continue across the region this evening with mostly VFR ceilings. An overall decrease in shower activity is expected overnight...especially across interior areas. Another impulse rotating around the trough is expected to push onshore Friday morning for an increase in shower coverage and periods of MVFR ceilings. Decreasin...