Seattle woke up to clear skies and mild air on Monday, July 6, 2026, with observations at Boeing Field (KBFI) coming in around 57°F (14°C) in the morning. A weak ridge is set to keep skies sunny and the afternoon warm, with interior neighborhoods and valleys seeing the highest readings. Coastal areas will stay cooler, and mariners should note that advisories are already in effect for parts of the local waters.
Afternoon Heat Away From The Sound
According to the National Weather Service Seattle, highs should top out near 80°F on Monday, July 6, 2026, with waterfront neighborhoods running several degrees cooler. Light north‑northwest winds of 2–7 mph are expected to keep conditions sunny and comfortable across inland spots. The NWS page has neighborhood‑level details and the latest updates.
Night Into Tuesday Brings Marine Layer
The ridge weakens overnight, allowing onshore marine air to filter inland and lower temperatures, so look for a high near 76°F on Tuesday, July 7, 2026, and lows in the upper 50s Tuesday night. There is a slight chance, roughly 20%, of light rain late Tuesday night into Wednesday morning, mainly over the Olympic Peninsula and portions of the north interior. For context, a stronger mid-June heat advisory was in place earlier this season, and this week’s warm spell will be milder by comparison.
Boaters Take Note
Small Craft Advisories cover parts of the coastal waters and the Strait of Juan de Fuca from Monday afternoon into Tuesday morning, with seas around 7–8 feet and a choppy 7–8‑second period. Forecast guidance also flags the potential for stronger westerly gusts Tuesday and Wednesday evenings that could nudge conditions toward low‑end gale levels. Mariners and anyone planning an evening outing are urged to check the latest marine forecast before heading out.
What To Expect This Week
Wednesday, July 8, 2026, brings a modest cooldown and only a slight chance of light rain, with highs near 71°F. Temperatures then settle into the low 70s through the end of the week. Night and morning clouds will be common as onshore flow returns, so a light layer will come in handy for early‑morning commutes.
