Extreme Heat Warning

Locations Affected

Seattle, WA ∙ Tacoma, WA ∙ Bellevue, WA ∙ Kent, WA ∙ Renton, WA ∙ Federal Way, WA ∙ Auburn, WA ∙ Lakewood, WA ∙ Redmond, WA ∙ Kirkland, WA

Full Alert Message

URGENT - WEATHER MESSAGE National Weather Service Seattle WA 955 AM PDT Mon Aug 25 2025 ...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 5 AM PDT WEDNESDAY... * WHAT...Hot conditions with high temperatures ranging from the upper 80s to low 90s and low temperatures in the mid 60s. This will pose a major risk of heat-related illness. * WHERE...City of Seattle, Eastside, and Lowlands of Pierce and Southern King Counties. * WHEN...Until 5 AM PDT Wednesday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. For sheltering information and other human services in your area, dial 2 1 1 during business hours or visit wa211.org anytime.

---