Monsoon season may have officially started earlier this month, but it’s off to a sluggish and lack-luster beginning across Colorado. Boulder has seen frequent storms—yet little meaningful rain—and wildfire smoke from the Western Slope and neighboring states is starting to pool to our west. A cold front arriving Tuesday night will bring cooler temps and a bump in thunderstorm chances for Wednesday, followed by a promising shift toward a more classic monsoonal setup Thursday through the weekend ahead with continued daily storms. This week, we’re tracking some heat, smoky haze, and hopefully, a few solid soakings of rain.
While fireworks once lit up Boulder’s Fourth of July, the city has moved on from the tradition due to rising fire risks, noise concerns, crowd issues, and high costs. But there’s another reason to consider: air quality. This year’s air quality data from across the Denver Metro area revealed that Boulder’s lack of a city-run fireworks show resulted in noticeably lower pollution levels compared to neighboring cities.
A shifting weather pattern is on the way as we head into the holiday weekend along the Front Range. Thursday will bring the heat and mostly dry skies, but things could get a bit more unsettled as we head into the Fourth of July and the weekend. If you’ve got outdoor plans in the coming days, here’s what to keep an eye on.
Colorado’s scorcher of a weekend is finally giving way to cooler, stormier skies—and not a moment too soon. After record-breaking highs in Boulder and Denver, a refreshing cold front kicks off the week with below-normal temps and a solid chance for showers and storms, especially Tuesday when things could turn severe. But don’t get too cozy—the heat will make a comeback late in the week into the weekend. Here’s what you need to know about Colorado’s weather during this final week of June.
Front Range Colorado is bracing for a scorching stretch ahead as a powerful heat dome settles in, sending daily highs into the 90s and even near 100°F come Friday. Fire danger is also set to rise with bone-dry downslope winds ramping up in the days ahead. But there’s relief on the horizon: a cold front will finally break the heatwave by Monday, bringing much cooler temps, a shot at rain, and the kind of weather we’ll certainly be ready for!
Get ready for a classic early summer setup—plenty of warmth, a hint of storm potential, a bit of wildfire smoke, and maybe even the year’s first 90-degree day(s) for the Front Range. While the week starts off dry and sunny, a few scattered storms will make an appearance midweek, adding a little variety to the forecast. By the weekend, the heat cranks up as a strong ridge sends hot air northward into Colorado.
© 2026 Front Range Weather, LLC