Triple-digit heat scorched Denver on Saturday, and another day of record-breaking temperatures is expected on Sunday, according to the National Weather Service.
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As of 2 p.m. Saturday, temperatures had reached 100 degrees at Denver International Airport, breaking the city’s previous July 25 heat record of 99 degrees, according to the weather service. Temperatures may climb a few more degrees before clouds move in Saturday afternoon, forecasters said.
Temperatures are expected to peak around 101 degrees in Denver on Sunday, according to weather service forecasters. That would break the city’s current July 26 heat record of 100 degrees, which was set in 1910, according to weather service records.
The hottest July temperature on record for Denver is 105 degrees, which the city hit on July 20, 2005, according to the weather service. That’s also the hottest temperature ever recorded in the city.
A heat advisory will be in effect for Adams, Arapahoe, Boulder, Broomfield, Denver, Douglas, Jefferson, Larimer and Weld counties from 10 a.m. to 9 p.m. Saturday, and again from 10 a.m. to 9 p.m. on Sunday, according to the weather service.
Temperature highs from 99 to 103 degrees are forecast across the Denver area and near Boulder, Fort Collins and Greeley, forecasters wrote in the advisory.
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Overnight temperatures will also be warm, with expected lows in the upper 60s and lower 70s, forecasters said.
🥵Heat Advisory🌡️
Heat builds this weekend, with highs pushing 100F today, and 100-105F across the plains Sunday.
💦Stay hydrated
🌳Seek shade
✅Check on elderly and pets
🚗Check the back seat
🚫Avoid strenuous activities during the heat of day. #COwx pic.twitter.com/vxtWRKo0IX— NWS Boulder (@NWSBoulder) July 25, 2026
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