Denver, Colo. – Blue skies stretch across the Front Range this morning, but the comfortable start won’t last. The sun is quickly taking control, and a significant burst of summer heat is preparing to settle over Denver and surrounding communities during the next several days.
Much of Colorado’s Front Range is heading into one of its hottest stretches of the season, with temperatures climbing into the upper 90s before reaching the 100-degree mark early next week.
According to the National Weather Service in Denver, a Heat Advisory is in effect from 10 a.m. Sunday until 9 p.m. Monday for Denver, Boulder, Fort Collins, Greeley, Longmont, and surrounding lower elevations. Afternoon highs are expected between 99 and 102 degrees, while nighttime temperatures remain unusually warm, offering little relief.
Saturday remains sunny with a high near 96 degrees, giving residents one more day to prepare before the advisory begins. By Sunday, highs climb to 99 degrees, followed by 100 degrees Monday. The combination of intense sunshine, light winds, and dry air will increase the risk of heat-related illness for anyone spending extended time outdoors.
An Ozone Action Day Alert also remains in effect across the Front Range Urban Corridor through this afternoon. Elevated ozone levels may affect children, older adults, and anyone with asthma or other respiratory conditions. Limiting strenuous outdoor activity during the warmest part of the day is recommended.
Travel conditions along Interstate 25, Interstate 70, U.S. 36, and E-470 will generally remain favorable through the weekend, but motorists should carry extra water in case of breakdowns. Vehicles can heat rapidly under direct sunshine, even with moderate outside temperatures.
The weather pattern shifts modestly by Monday night as isolated thunderstorms become possible. Storm chances increase Tuesday and continue through midweek, bringing localized lightning, brief heavy rain, gusty winds, and cooler temperatures in the lower 90s. While widespread severe weather is not expected at this time, typical Colorado afternoon thunderstorms can still produce sudden travel delays and dangerous cloud-to-ground lightning.
Looking farther ahead, above-normal temperatures are expected to continue across much of the region during the 6-to-10-day outlook, although periodic afternoon thunderstorms may provide occasional relief from the heat.
Five-Day Forecast for Denver, Colorado
- Today: Sunny. High 96°F.
- Sunday: Sunny and hot. High 99°F.
- Monday: Sunny and hot. High 100°F.
- Tuesday: Mostly sunny with afternoon thunderstorms possible. High 93°F.
- Wednesday: Showers and thunderstorms likely during the afternoon. High 93°F.
