Update: Central Colorado under a heat advisory Sunday and Monday

Published Jul 18, 2026

The National Weather Service released an updated heat advisory at 4:46 a.m. on Saturday valid from Sunday 10 a.m. until Monday 9 p.m. for 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 and Central and South Weld County.

The NWS informs, “High temperatures between 98 – 102 expected on Sunday and Monday. Low temperatures Sunday night will be between 68 – 71 in the Denver metro.”

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

Hot weather safety: Tips for staying safe and healthy

Stay hydrated: Make sure to drink plenty of fluids.

Seek shelter: Stay indoors in an air-conditioned room to keep cool.

Avoid sun exposure: Avoid direct sun exposure, protect yourself and check on vulnerable relatives and neighbors.

Child and pet safety: Take every precaution to never leave young children and pets alone in vehicles, especially in extreme heat when car interiors can quickly become hazardous.

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

Select the ideal time: When possible, reschedule strenuous activities to early morning or evening.

Recognize heat-related issues: Recognize the warning signs and familiarize yourself with symptoms of heat exhaustion and heat stroke.

Stay cool with clothing: Wear lightweight and loose-fitting clothing.

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 succumbs to the heat, promptly 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