Denver Forecast Calls for City's First 90-Degree Day of 2026

Record-breaking heat expected amid continued above-normal temperatures in the Mile High City.

Mar. 22, 2026 at 9:43pm

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The National Weather Service is forecasting Denver's first 90-degree day of 2026 this week, with temperatures expected to reach 15 to 30 degrees above normal for this time of year. Near-record and record-breaking highs are in the forecast, potentially making this one of the earliest 90-degree days on record for the city.

Why it matters

Denver's early arrival of extreme heat is concerning, as it could signal a trend of rising temperatures and earlier summer-like conditions in the region due to climate change. This type of weather can have significant impacts on public health, energy usage, and the local environment.

The details

According to the National Weather Service, 'normal' temperature highs for this time of March in Denver range from 58 to 60 degrees. However, forecasts show most of this week's highs in the city are expected to be 15 to 30 degrees above that, with the potential for near-record and record-breaking temperatures.

  • The earliest Denver has recorded a 90-degree day in previous years was on April 30, 1992, according to the weather service.

The players

National Weather Service

The federal agency responsible for weather forecasting and issuing weather-related warnings in the United States.

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The takeaway

This early arrival of extreme heat in Denver is a concerning sign of the impacts of climate change, with the potential to strain public resources, impact public health, and disrupt the local environment. As temperatures continue to rise, communities will need to adapt and prepare for more frequent and intense heatwaves in the years to come.