Denver

Smoke, Sizzle And Fireworks Jitters: Denver Braces For Stormy July 4

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Published on July 04, 2026
Smoke, Sizzle And Fireworks Jitters: Denver Braces For Stormy July 4Source: Flickr, CC BY 2.0, via Wikimedia Commons

Denver is waking up to a hazy Fourth of July on Saturday, July 4, with smoke-tinged skies, early lows near 63°F, and temperatures already climbing through the morning. The sun will poke through at times, but the murky sky is not going anywhere fast, and the high is still expected to reach around 90°F. Holiday plans should factor in the heat, along with a chance for scattered showers and thunderstorms this afternoon and evening.

Afternoon Storms And Severe Threat

Scattered storms are expected from about midday into the evening, with first cells firing near the foothills by mid-afternoon and then sliding east across the plains through roughly 9 p.m. Forecasters say a few storms could turn strong to severe, with large hail and damaging wind gusts in the mix. Hail may reach up to two inches in diameter, and gusts could approach 60 mph with the strongest storms. Keep a weather radio or phone alerts turned on and be ready to head indoors if lightning pops up or winds suddenly ramp during outdoor plans, according to the National Weather Service Denver/Boulder.

Smoke, Air Quality And Cooling Options

Patchy smoke will be most noticeable around sunrise and sunset, when it can cut visibility and irritate those with lung disease or asthma. People in sensitive groups should ease off strenuous outdoor activity and consider sticking to air-conditioned spaces until the air improves. The city has set up designated cooling areas in recreation centers and libraries; a compiled list of local options, including locations and hours, is available from Denver7.

Fourth Of July Plans And Fire Risk

Holiday fireworks and big outdoor gatherings might have some weather drama to contend with. Brief, dry lightning in the higher elevations brings an elevated fire-start concern, even as low-elevation fire weather eases a bit. Anyone planning to set off consumer fireworks should double-check local rules and event updates, and keep a healthy distance from areas with thicker smoke or gusty winds. Event organizers are urged to have a shelter plan ready for sudden storms and to monitor real-time radar before crowds build.

Looking Ahead

High pressure is expected to rebuild on Sunday, with highs pushing back into the low to mid 90s early next week. Scattered afternoon storms are forecast to return Tuesday and Wednesday. Keep water handy, grab shade where you can, and keep an eye on updated forecasts as the heat peaks later in the week. For the latest watches and short-term guidance, check the National Weather Service along with local advisories before heading out.

Denver-Weather & Environment