Seattle rolled into Monday, June 29, 2026, under a thick marine layer, with Boeing Field waking up to clouds and temperatures hovering around 55°F. That gray blanket is expected to hang around through the morning before inland lowlands carve out some partly sunny breaks later in the day. Look for a mild afternoon with highs near 70°F and light south-southwest breezes, while early hours stay firmly in light-jacket territory.
Afternoon Outlook
Most lowland neighborhoods should top out in the upper 60s to about 70°F by late afternoon, with south-southwest winds around 5 to 9 mph and only a small chance of any measurable rain. Overnight lows are pegged for the mid-50s, so evenings stay on the cool-but-comfortable side. For full forecast details, head to the National Weather Service.
Boaters And Ferry Riders
Small Craft Advisories are in effect for portions of the Strait of Juan de Fuca and nearby coastal waters into Tuesday, June 30, 2026, which means choppy seas and gusty conditions for smaller boats and potentially some bumpier ferry rides. Mariners should take it slow, check conditions closely and review route-specific notices before casting off. For route information and service bulletins, see WSDOT ferry alerts.
Holiday Weekend
Looking toward the long weekend, guidance is leaning toward a drier and slightly warmer pattern as an offshore ridge noses back into the region. Independence Day on Saturday, July 4, 2026, is currently shaping up as mostly sunny with a high near 74°F, a sweet spot for fireworks and backyard plans. Thursday still carries a slight chance of light rain. The National Weather Service will post updates if the timing or impacts shift.
What To Pack
Think layers for the next few days: cool mornings and milder afternoons mean a light jacket for early commutes and sunscreen for later plans. If you are heading out on the water or have weekend events locked in, keep an eye on forecasts and advisories over the next 48 hours and give yourself extra time for ferry travel just in case conditions slow things down.
