Seattle, WA – Sizzling summer weather is back across Washington as temperatures in Seattle push toward 85°F on Thursday, July 17th, kicking off a stretch of sun and heat that could linger well into next week. With a heat advisory still active through 10 p.m. Wednesday, residents should prepare for another round of above-average warmth and clear skies as the weekend approaches.
According to the National Weather Service, Thursday will be sunny and dry with highs near 85°F and little relief from the heat overnight. Local officials urge everyone in King County—especially those without air conditioning—to limit outdoor activities during peak afternoon hours, stay hydrated, and check on vulnerable neighbors. Drivers using I-5 and SR 99 should watch for heat-related slowdowns and pack extra water for the road.
By Friday, mostly sunny skies will keep highs near 82°F, with slightly cooler conditions forecast for Saturday and Sunday as temperatures settle into the upper 70s. Evenings remain mild, with lows holding steady in the high 50s to low 60s—ideal for open-window sleeping but a reminder to secure pets and check on the elderly.
This latest round of hot, dry weather comes after a week of high temperatures, continuing a trend seen across the Pacific Northwest. For those planning weekend park visits or outdoor events in Seattle, Bellevue, or Redmond, bring sun protection and stay mindful of increasing fire risk on local trails.
What’s next:
The warm, sunny pattern is set to last through Tuesday, July 22nd. No major cooldowns or rain chances are expected, but additional heat advisories are possible if high temperatures persist. Stay tuned for updates and be weather-ready as July’s heat holds strong across western Washington.
Seattle 5-Day Weather Forecast:
- Thursday, July 17th: Sunny, high 85°F, low 61°F.
- Friday, July 18th: Mostly sunny, high 82°F, low 58°F.
- Saturday, July 19th: Partly sunny, high 77°F, low 57°F.
- Sunday, July 20th: Partly cloudy, high 77°F, low 58°F.
- Monday, July 21st: Mostly sunny, high 79°F, low 58°F.
- Tuesday, July 22nd: Sunny, high 79°F.
