Wednesday brought historic heat across the Front Range, with Boulder hitting a record high of 101°F—the city’s hottest day in over a decade. A weak cold front has since cooled things off slightly, ushering in a good chance of storms the next few days as well. Sunday into Monday turn drier and hotter again as reverse monsoonal flow sets up, potentially stifling our typical summer storm pattern for a bit.
Category: Climatology (Page 7 of 65)
These posts contain information about the long-term weather patterns of Boulder County. Potential topics may include 30-day weather outlooks, El Nino/La Nina, and seasonal forecasts. You will find less about the day-to-day weather, with more focus on longer trends and patterns.
June 2025 started out cool and rainy in the Front Range, but precipitation became much more scarce as the month wore on, with our landscape drying out and fire danger creeping up over time. The month also featured several rounds of damaging severe weather and multiple sizzling heat waves. Here’s a quick and colorful graphical recap of our weather during June and how it relates to climatology.
It’s going to be a scorcher across the Front Range this week—with temperatures climbing fast and flirting with triple digits by midweek. But just as the heat peaks, a pattern shift arrives that will bring cooler weather and a chance of storms again by Friday. Read on for all our full outlook of the weather week ahead.
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.
Monsoon season kicks off right on time this week, bringing a steady stream of moisture from Mexico into the Southwest and central Rockies. While daily storm chances are on tap for the Front Range, coverage looks hit-or-miss, with Wednesday shaping up to be the warmest and driest day. Expect highs ranging from the 70s to mid-90s as the pattern evolves. We also need to keep an eye on the forecast heading into Fourth of July weekend as scattered storms will be in the mix.
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!
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