Denver

Denver and Surrounding Areas on Alert as NWS Issues Fire Weather Watch Amid Critical Conditions

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Published on December 18, 2025
Denver and Surrounding Areas on Alert as NWS Issues Fire Weather Watch Amid Critical ConditionsSource: Paul Sableman, CC BY 2.0, via Wikimedia Commons

The National Weather Service (NWS) in Denver, Colorado, has issued a Fire Weather Watch that is now extended to Friday morning through Friday evening due to anticipated critical fire weather conditions. Residents in Larimer County below 6000 feet, including Northwest Weld County, Boulder and Jefferson Counties below 6000 feet, and North Douglas County, among others, should be on alert. According to the National Weather Service, this region is expected to experience strong winds and low humidity, which could lead to rapid fire spread.

The latest bulletin cautions that "Critical fire weather conditions are forecast to occur." With winds from the west reaching 25 to 35 mph and gusts that could hit between 70 and 80 mph near the foothills, and up to 45 mph near the I-25 corridor. In these conditions, even a small spark could ignite a significant wildfire, threatening life and property. Public safety officials advise the community to avoid all outdoor burning and activities that may create sparks.

As per the National Weather Service, while humidity levels could plunge as low as 10 percent, which poses an additional challenge for fire containment, residents should also prepare for strong downslope winds that will significantly affect the mountains and foothills. These winds could bring additional problems of blowing dust and potentially hazardous travel conditions across the northern plains beginning today, Thursday, stretching into Friday.

The latest weather outlook is not just about wind and fire. This evening, snow will return to the northern mountains, the NWS has stated, signaling a shift from critical fire conditions to snow hazards with "reduced visibilities and slick roads expected." Residents throughout the affected areas are urged to stay tuned to local forecasts and prepare for rapidly changing weather conditions.

For the remainder of the week, the weather is a mixed bag; sunny skies are anticipated with highs peaking around 71°F on Friday, before a chance of showers moving in on Friday night. Onward, Denver residents should see a cooling trend moving into the weekend, with the potential for more rain and snow showers interspersed with periods of sunshine.

The NWS continues to monitor the situation closely and provides updated forecasts and warnings. Residents and local authorities within the affected zones are advised to heed fire safety warnings and stay prepared for the upcoming adverse weather conditions.

Denver-Weather & Environment