Heat Advisory

Locations Affected

Aurora, CO ∙ Denver, CO ∙ Lakewood, CO ∙ Fort Collins, CO ∙ Boulder, CO ∙ Thornton, CO ∙ Westminster, CO ∙ Centennial, CO ∙ Arvada, CO ∙ Greeley, CO

Full Alert Message

URGENT - WEATHER MESSAGE National Weather Service Denver CO 251 AM MDT Fri Jul 24 2026 ...HEAT ADVISORY IN EFFECT FROM 11 AM TO 9 PM MDT SATURDAY... ...HEAT ADVISORY IN EFFECT FROM 11 AM TO 9 PM MDT SUNDAY... * WHAT...Temperatures from 99 to 103. * WHERE...Fort Collins, Boulder and the western suburbs of Denver, Denver, and Greeley. * WHEN...From 11 AM to 9 PM MDT both Saturday and Sunday. * IMPACTS...Hot temperatures may cause heat illnesses. 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. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke.

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