Denver

Red Flag Warning Issued in Denver Area Amid Critical Fire Conditions

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Published on December 17, 2025
Red Flag Warning Issued in Denver Area Amid Critical Fire ConditionsSource: Paul Sableman, CC BY 2.0, via Wikimedia Commons

The National Weather Service in Denver has issued a Red Flag Warning for parts of Colorado, indicating that critical fire weather conditions are either occurring or will shortly. The affected areas include Larimer County below 6000 feet, Boulder and Jefferson Counties below 6000 feet, and other regions across the urban corridor. The warning, which was announced following breezy winds and marginal relative humidity values, remains in effect from 11 AM to 6 PM MST this evening, according to the National Weather Service.

The warning outlines strong west winds at 30 to 50 mph with gusts up to 80 mph and relative humidity sitting between 15 to 25 percent. Such dry and windy conditions could contribute to rapid fire spread. Residents are advised to exercise extreme caution, refraining from outdoor burning and any activities that could potentially create a spark and ignite a wildfire. Avoid outdoor burning and any activity that may produce a spark and start a wildfire, cautions the National Weather Service.

In addition to the fire concerns, Denver's weather outlook for the next few days includes mostly sunny skies with a high near 70 degrees today but shifting to a chance of rain showers mixing with snow after 10 PM. The temperature is expected to drop to a low around 33 degrees overnight. Breezy conditions will continue with a northwest wind gusting as high as 39 mph, yet little to no snow accumulation is expected.

As we head towards the weekend, Denver's weather will be partly sunny with highs peaking near 68 degrees on Friday. A subtle 20 percent chance of showers is forecasted for Saturday morning before giving way to mostly sunny skies. For outdoor enthusiasts and commuters, weather-induced concerns are a continual dance with nature, be it managing risks of wildfires or navigating the spontaneous whims of Colorado's climate.

Denver-Weather & Environment