Seattle/ Weather & Environment

Seattle Halloween Forecast: Partly Sunny Skies for Saturday’s Doggie Parade

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Published on October 29, 2026
Seattle Halloween Forecast: Partly Sunny Skies for Saturday’s Doggie ParadeSource: Google Street View

Seattle’s Halloween forecast calls for partly sunny skies and a high in the mid 50s Saturday, Oct. 31, with shower activity confined to the coast. That outlook could matter for people heading to Seattle Parks and Recreation’s High Point Doggie Parade, scheduled for 10 a.m. Saturday. The forecast is favorable for an outdoor event.

How the forecast compares with a nearby benchmark

Thursday’s forecast high is about 53 degrees. A National Weather Service climate report lists a normal high of 56 degrees for Oct. 29 at Seattle-Tacoma International Airport. That airport normal is a nearby-station point of comparison, not a measure of conditions at every location in Seattle.

The supplied forecast also calls for a chance of light rain Thursday, with a few showers possibly lingering into the evening. Friday brings another rain chance before 5 p.m., then partly sunny skies and a high near 52; Friday night is forecast near 40.

A quieter pattern follows

Sunday is forecast to be partly sunny. The National Weather Service’s Seattle-area forecast discussion describes a ridge and highs in the 50s through Tuesday. That broader outlook points to a milder, calmer start to November.