Denver

Denver Braces for Potential Thunderstorms and Flash Flooding, NWS Advises Caution

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Published on August 28, 2025
Denver Braces for Potential Thunderstorms and Flash Flooding, NWS Advises CautionSource: Aldara Gutiérrez Pol on Unsplash

Residents in Denver and surrounding areas should brace themselves for a bout of thunderstorms and potentially heavy rainfall, as predicted by the National Weather Service (NWS). Today, the chances of showers and thunderstorms are pegged at 50 percent, becoming more likely after 2 p.m., following a foggy start to the morning. According to the National Weather Service, the day will reach highs around 80°F with calm winds shifting east-northeast at about 6 mph in the afternoon.

As the system moves through, Denver locals can expect the possibility for some storms to produce locally heavy rain, with 1-2 inches possible in a 30-45 minute period, especially over burn scars and urban areas, which could lead to flash flooding or street flooding. The risk of severe storms comes with the potential for hail and strong winds, based on the detailed forecast by NWS. Moving into the evening, the chance of showers and storms drops slightly to 40 percent before midnight and then becomes less likely as the night progresses.

The outlook through the following days suggests a continuation of unsettled weather, with scattered to numerous showers and thunderstorms looming till at least Thursday. While the frequency and intensity of thunderstorms are expected to wane after Thursday, areas of northeast and north central Colorado will remain on alert for any adverse weather conditions. The good news for outdoor enthusiasts is that drier conditions are on the horizon for Sunday and early next week.

While the NWS has not called for spotter activation immediately, they do appreciate reports of heavy rain or flooding from the public. This information will aid in monitoring evolving weather situations, particularly during the storms that may also approach severe levels with hail and strong winds. Heading into Labor Day weekend, the weather seems to offer a reprieve with sunny and mostly clear skies anticipated, and highs climbing to a warm 84°F.

Denver-Weather & Environment