Seattle woke up Wednesday to clear skies and a mild start around 66°F at Boeing Field, but inland neighborhoods are already heating up under a Heat Advisory that runs through 11 p.m. Forecasters expect the hottest stretch this afternoon, with inland highs topping out around 86 to 88°F, while the waterfront stays much cooler in the mid 60s. The heat will not last long, with a marine push set to roll into Puget Sound on Thursday, bringing clouds, rain by Thursday night, and a much cooler, unsettled weekend.
Afternoon Heat: Where It Will Be Hottest
Inland neighborhoods and the Eastside should plan on the peak heat between about 2 and 6 p.m., with temperatures reaching the mid to upper 80s. Light west-southwest winds of about 1 to 6 mph will not provide much relief in those warmer spots. Closer to the water, temperatures will linger in the 60s. Humidity will stay low inland, so it will feel like a dry, direct kind of heat rather than a sticky one.
Heat Advisory And Safety
According to NWS Seattle, a Heat Advisory is in effect through 11 p.m. Wednesday. Officials recommend drinking plenty of fluids, staying in air-conditioned spaces when possible, and never leaving children or pets in vehicles. Outdoor workers are urged to shift strenuous tasks to the morning or evening and to take frequent shaded breaks. Neighbors are also encouraged to check on older adults and anyone else who might be especially vulnerable to the heat. Those who need a public cooling spot can call or search for local options through WA 211.
Fast Turnaround: Rain Moves In Thursday Night
A marine push is expected to arrive Thursday, bringing increasing clouds and a chance of light rain by late in the day, followed by more widespread rain and showers along with a chance of thunderstorms on Friday. Highs will drop into the 60s on both Thursday and Friday, which is roughly 15 to 25 degrees cooler than Wednesday for many inland areas, and the weekend looks to stay cool and damp. Mariners should be ready for locally gusty conditions and possible advisories overnight into Thursday as the front approaches.
Plan Ahead
If you have outdoor plans today, try to shift them to the morning or evening, bring plenty of water and a source of shade, and be prepared to trade sunglasses for a rain jacket by Thursday. For the latest timing and details on local impacts, keep an eye on the NWS forecast, and dial 211 if you need help finding cooling options.
