Denver

Denver Gripped by Sweltering Heatwave, NWS Issues Advisory Amid Soaring Temperatures

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Published on June 20, 2025
Denver Gripped by Sweltering Heatwave, NWS Issues Advisory Amid Soaring TemperaturesSource: Paul Sableman, CC BY 2.0, via Wikimedia Commons

Denver is facing a scorching heatwave this weekend, with the National Weather Service in Denver, CO, declaring a Heat Advisory in effect until Saturday evening. High temperatures near 100 degrees across the I-25 Urban Corridor, and up to 104 across the eastern plains, warn the NWS advisory. This heat spike is predicted to peak today and continue on Saturday, straining the limits of local air conditioners and possibly the patience of residents.

In these conditions, with temperatures set to dangerously soar, city officials are urging people to take care not to excessively expose themselves to the elements. Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors, according to the NWS guide to coping with the extreme temperatures. The advisory further suggests limiting strenuous activities to the coolest parts of the day, emphasizing early morning or late evening as the preferred times for any outdoor exertion.

According to the National Weather Service, the sunny and hot conditions dominating Friday are just a prelude to even higher temperatures expected in the coming days. Today is Sunny and hot, with a high near 101. Breezy, with a southwest wind 8 to 16 mph, with gusts as high as 25 mph, was reported in the detailed forecast. Tonight, temperatures are expected to dip to a low around 65, but will likely bounce back nearly 35 degrees the next day.

Looking ahead, it seems that relief is, at least, on the beleaguered horizon. By Monday, there is a 20 percent chance of showers and thunderstorms that could gradually usher in cooler, more manageable conditions. Starting Monday and continuing much of next week, moisture is expected to return to the forecast area with chances of late-day showers and thunderstorms along with temperatures at or below seasonal normals, according to the Hazardous Weather Outlook from the NWS. Until then, Denverites are advised to remain alert to the signs of heat-related illnesses and take the necessary precautions to ensure their safety in the blistering conditions.

Denver-Weather & Environment