July 2025 was our second consecutive hot and dry month. The summer monsoon has been very stingy so far, leaving Boulder and much of the Denver region parched with drought conditions returning to parts of the Front Range. July didn’t hold back on extremes either: record-breaking heat at times scorched the region, plowable hail hammered Gunbarrel, and a rare funnel cloud spun up over the Foothills of Boulder County. Here’s a quick and colorful graphical recap of our weather during July and how it relates to climatology.
Category: Climatology (Page 4 of 63)
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.
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The Front Range is heading into a stretch of intense summer heat this week, with a dominant high-pressure system set to lock Colorado into several days of sizzling temperatures and dry skies. Expect highs in the mid to upper 90s every day through Friday. While Boulder isn’t guaranteed to break any record high temperatures, past patterns suggest we could run hotter than models are currently predicting—something worth watching as it would bump up the heat risks in the Metro area. Relief is on the horizon, though: a cold front late Friday should bring a sharp cooldown just in time for the weekend with at least low-end chances for storms returning.
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Colorado’s monsoon season has been off to a sluggish start, and the latest surge storm potential this week isn’t even from the monsoon itself—it’s thanks to potent cold fronts dropping in from the northeast. In today’s update, we dig into why flash flooding is on the rise this week, which areas are most at risk, and what the next few days could mean for our thirsty landscapes. Spoiler: while heavy rain is possible, it’s only a short window and many of us won’t see it. Plus, the new blanket of wildfire smoke is likely to stick around through the weekend.
With record-challenging heat to start and a dramatic cooldown looming midweek, Colorado’s weather is shifting gears—and fast. A powerful ridge is driving us toward 100° on Monday, but it won’t stick around. By midweek, cooler temperatures and increased rain chances roll in, possibly delivering relief via much-needed moisture. We break down the evolving setup, the timing of the incoming cold front, and what it could mean for rainfall totals, flash flooding risk, and your week ahead.
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After a hot and mostly dry Monday, the Front Range is in store for a wetter stretch midweek, with an uptick in monsoonal moisture and storm activity. A favorable upper-air pattern and midweek cold front will drive daily thunderstorm chances and potential flash flooding, especially Tuesday through Thursday. Conditions will trend hotter and drier into the weekend and next week, exacerbating the ongoing drought and fire risk in the High Country.
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