Seattle, Washington – Sunshine and rising temperatures will define the weekend across the Seattle metro, as residents brace for the hottest stretch of summer so far. Parks, neighborhoods, and major roadways like I-5 could see increased crowds and possible heat-related hazards, especially as highs surge into the upper 80s by midweek.
According to the National Weather Service at Boeing Field-King County International Airport, Saturday, July 12, brings a classic Pacific Northwest summer day with sunny skies and a high near 81°. Light morning winds will shift north in the afternoon, keeping air quality steady but raising the risk of dehydration and heat exhaustion for those outdoors.
Local impacts include busier traffic on I-5 and extra demand at city pools and cooling centers. Public health officials urge everyone to drink plenty of water, use sunscreen, and avoid strenuous activity during peak afternoon hours. Seattle Parks and Recreation recommends early visits to local trails and playgrounds to beat the heat.
Sunday continues the sunny pattern, with highs reaching 84°. Monday remains partly sunny but slightly cooler, with a high near 78°. By Tuesday, temperatures rise again to 86°, and a notable jump is expected Wednesday with highs near 90°. Residents should monitor local updates and check on neighbors vulnerable to heat.
Stay tuned as the summer heat intensifies. The next NWS update will provide further details if new advisories are issued.
Five-Day Detailed Forecast for Seattle, WA
- Saturday: Sunny, high near 81°F. Light north wind.
- Sunday: Sunny, high near 84°F.
- Monday: Partly sunny, high near 78°F.
- Tuesday: Sunny, high near 86°F.
- Wednesday: Sunny, high near 90°F.
