Denver, Colorado – Anyone with outdoor plans across eastern Colorado should prepare for dangerous heat over the next several days, with temperatures climbing to around 100 degrees Saturday and reaching 100 to 105 degrees across the plains Sunday. While isolated afternoon thunderstorms could bring brief relief, the heat will remain the primary concern, especially during the peak afternoon hours.
According to the National Weather Service in Denver/Boulder, scattered afternoon showers and thunderstorms will develop mainly over the mountains and along the Interstate 25 corridor each day. Storm coverage increases Monday, particularly in the higher terrain, while temperatures ease only slightly across the urban corridor.
The hottest conditions will stretch from the Denver metro area eastward across the plains, where prolonged exposure could increase the risk of heat-related illnesses. Residents are encouraged to stay hydrated, limit strenuous outdoor activities during the afternoon, and check on vulnerable neighbors, children, and pets. Those hiking or camping in the mountains should also remain alert for lightning and rapidly changing weather during the afternoon and evening.
Drivers along I-25 and nearby mountain highways may encounter brief downpours, gusty winds, and lightning near developing storms, although widespread severe weather is not expected based on the latest outlook.
The heat is expected to continue into early next week, with only modest cooling Monday. Additional forecasts and any heat-related advisories could be issued as conditions evolve.
Five-Day Forecast for Denver, Colorado
- Saturday: High 98–102°, low 66–72°. 30% chance of afternoon thunderstorms.
- Sunday: High 99–104°, low 67–72°. 30% chance of afternoon thunderstorms.
- Monday: High 96–100°, low 64–69°. 50% chance of afternoon thunderstorms.
