Renton, Washington Weather:
Active Weather Warnings
Wednesday, July 22, 2026
Cloudy Weather
Day 95°
Night 64°
Precipitation 1 %
Wind 7 mph
UV Index (0 - 11+) 8
Weather Forecast History
Last Year's Weather on This Day (July 22, 2025)
Night

Day

81°

Night

59°

Wind

5 mph

Precipitation

8 %

Weather Alerts and Warnings for

Moderate Expected Likely

Heat Advisory

Heat Advisory issued July 20 at 8:49PM PDT until July 22 at 11:00PM PDT by NWS Seattle WA
Jul 21, 10:00 AM Jul 22, 11:00 PM
WHAT: Hot conditions with high temperatures up to 95 degrees
expected and low temperatures from 60 to 65 degrees. This will
pose a moderate to major risk of heat-related illness.

WHERE: Eastern Kitsap County, City of Seattle, Downtown Everett /
Marysville Area, Eastside, Foothills and Valleys of Central King
County, Foothills and Valleys of Pierce and Southern King
Counties, Foothills and Valleys of Snohomish and Northern King
Counties, Lowlands of Pierce and Southern King Counties, and
Shoreline / Lynnwood / South Everett Area.

WHEN: From 10 AM Tuesday to 11 PM PDT Wednesday.

IMPACTS: Heat will significantly increase the risk of
heat-related illnesses for those who are sensitive to heat,
especially those without effective cooling or adequate hydration.

ADDITIONAL DETAILS: Areas closest to the water will experience
cooler daytime high temperatures.
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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.
Updated: Jul 21, 5:28 AM Source: NWS Alert