Update: Heat advisory in place for Denver and the Eastern Plains until Saturday evening

Published Jun 21, 2025

On Saturday at 3:49 a.m. an updated heat advisory was released by the National Weather Service in effect until 6 p.m. for Denver and the Eastern Plains.

The NWS states to prepare for, “High temperatures near 100 degrees across the I-25 Urban Corridor, and up to 103 across the eastern plains.”

“Hot temperatures may cause heat related illnesses,” says the NWS.

The full list of affected locations includes:

• Larimer County below 6,000 feet/Northwest Weld County

• Boulder/Jefferson counties below 6,000 feet/West Broomfield County

• North Douglas County below 6,000 feet/Denver/West Adams and Arapahoe counties/East Broomfield County

• Elbert/central and east Douglas counties above 6,000 feet

• Northeast Weld County

• Central and South Weld County

• Central and East Adams and Arapahoe counties

• North and Northeast Elbert County below 6,000 feet/North Lincoln County

• Southeast Elbert County below 6,000 feet/South Lincoln County

• Morgan County

• Logan County

• Washington County

• Sedgwick County

• Phillips County

Tips from the NWS for staying safe during a heat wave

Stay hydrated: Drink plenty of fluids.

Seek cool shelter: Opt for an air-conditioned room to stay comfortable.

Avoid sun exposure: Stay out of the sun, and make sure to check up on relatives and neighbors.

Child and pet safety: Do not leave young children and pets unattended in vehicles when car interiors can reach lethal temperatures in a matter of minutes.

Caution outdoors: If you work or spend time outside, be sure to take additional safety measures.

Optimal timing: If possible, reschedule strenuous activities to early morning or evening when the heat is less intense.

Recognize heat-related issues: Know how to recognize the signs and symptoms of heat exhaustion and heat stroke.

Dress for comfort: Wear lightweight, loose-fitting clothing to stay comfortable.

Additional tips for outdoor workers:

• The Occupational Safety and Health Administration (OSHA) recommends frequent rest breaks in shaded or air-conditioned areas for outdoor workers.

• If someone is overwhelmed by the heat, swiftly relocate them to a cool, shaded location.

• In emergencies, call 911 for immediate assistance.

These NWS heat safety directives are essential for safeguarding your well-being when facing high temperatures. Stay well-informed and take the necessary precautions to shield yourself and others from the potential hazards of extreme heat.

Source: The National Weather Service