Seattle, WA – Summer heat is making a bold return across western Washington, with Seattle expected to reach 82°F by Sunday, July 20th, under mostly sunny skies.
According to the National Weather Service, a warming trend will build through midweek, peaking with high temperatures near 85°F by Wednesday. Calm wind and consistent sunshine will keep roads dry but raise heat-related concerns for outdoor workers and vulnerable populations. Residents along I-5 and throughout King County should limit strenuous outdoor activity during peak hours and keep hydrated.
Sunday starts partly sunny, with highs around 72°F before temperatures climb Monday and Tuesday. By Tuesday, Seattle hits 82°F under mostly clear skies, with no rain expected. Light wind continues through Monday night, offering little relief from the daytime warmth. Those heading to Alki Beach or hiking near Mount Si should use sun protection and plan for limited shade.
Utilities and cooling centers are not yet under strain, but Puget Sound Energy recommends conserving electricity during the hottest part of the afternoon. The region’s low humidity and calm air mean wildfire risk remains minimal for now.
The warm stretch will ease slightly by Friday, July 25th, when highs dip to the upper 70s under partly sunny skies.
⚠️ More weather updates could follow if the heat intensifies further next week.
🔎 Five-Day Forecast: Seattle, WA
- Sunday, July 20: Partly sunny, high 72°F
- Monday, July 21: Mostly sunny, high 75°F
- Tuesday, July 22: Mostly sunny, high 82°F
- Wednesday, July 23: Sunny, high 85°F
- Thursday, July 24: Sunny, high 81°F
- Friday, July 25: Partly sunny, high 77°F
