Seattle rolled into Tuesday, June 30, 2026, under a stubborn blanket of marine gray, with Boeing Field (KBFI) starting the morning cloudy and around 55°F. The cool, mostly cloudy pattern is expected to hang on through Thursday, with highs only in the upper 60s, before a modest warm-up finally shows up in time for the holiday weekend. Out on the water, choppy coastal seas into midweek could throw a wrench into early weekend boating plans.
Today and the Commute
Tuesday, June 30, 2026, stays on brand for June gloom. Look for mostly cloudy skies, a high near 67°F, and light south-southwest winds around 5 to 9 mph. The afternoon commute should stay dry, though the overcast will likely keep things looking more November than late June.
Morning low clouds may linger through the early commute, with only a very small chance of light drizzle. According to the National Weather Service Seattle, ceilings should lift into the afternoon, opening the door for at least some breaks in the clouds.
Marine and Boater Outlook
If you are thinking about getting on the water, this is the part you will want to pay attention to. A Small Craft Advisory remains in effect for coastal waters through Wednesday, July 1, 2026, with seas building to 10 to 13 feet offshore and about 9 to 10 feet closer to shore. Those conditions are considered hazardous for small boats.
Mariners and recreational boaters, especially anyone in a smaller vessel, are urged to hold off on heading out until seas calm down. The NWS marine bulletin lays out the zone-by-zone timing and details if you need the fine print.
Weekend Outlook
Relief arrives just in time for barbecues and fireworks. Drier, slightly warmer air moves in Friday, July 3, 2026, with highs nudging into the mid 60s to mid 70s. Independence Day on Saturday, July 4, 2026, is shaping up to be mostly sunny with a high near 74°F, a welcome change after the gray stretch.
Mornings will still start off cool and jacket-friendly, but afternoons look brighter and more comfortable for outdoor plans. If those plans take you to the coast, keep an eye on late forecasts, since marine conditions can lag behind the inland warm-up even as the sun finally shows up over the city.
