Category: Monsoon (Page 1 of 12)

August 2025 Graphical Weather Review: A hot, dry & smoky month saved by a cool & rainy finish

September 26, 2025 / BoulderCAST Team

August 2025 was on track to be our third scorcher in a row — hot, dry, and smoky — until a late-month shift brought in a welcome stretch of cooler, wetter weather. That pattern change helped balance things out across the Front Range, with most areas landing close to average for rainfall and just slightly warmer than normal overall. Still, it wasn’t all relief: the month packed in plenty of wildfire smoke and a few record-breaking heat days that served to remind us that summer wasn’t done yet. Here’s a quick and colorful graphical recap of our weather during August and how it relates to climatology.

NOTE: This monthly recap was delayed due to missing data in the August 2025 climate record for Boulder which has since been partially filled with best-guess approximations.

This Week in Colorado Weather: September 8, 2025

September 8, 2025 / Ben Castellani

Last week’s cold front didn’t just drop temperatures—it dragged in a wall of chemical-scented smoke that turned the Front Range skies hazy and acrid. The days ahead are shaping up to be much more pleasant with warmer temps, limited storm chances, and a break from the smoke (at least for now) under southwest flow. Read on for a full breakdown of this week’s weather, including when to expect the best shot at rain and whether any smoke may return in the extended.

Colorado Forecast Update: Thursday evening’s smoky front will usher in cooler, (slightly) wetter weather for the weekend

September 4, 2025 / BoulderCAST Team

Thursday’s shaping up to be a busy weather day across the Front Range. We’re looking at hot temperatures, gusty winds, and a cold front arriving by evening that’ll bring a noticeable drop in temps — along with a wave of wildfire smoke. We’ll walk through what to expect today, how the weekend is shaping up, and whether any moisture from Hurricane Lorena might sneak into the region.

Premium BoulderCAST Daily – Fri 08/29/25 | Scattered storms today & tomorrow with continued below normal temps

August 29, 2025 / Ben Castellani

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Premium This Weekend in Colorado Weather: A few more stormy days ahead of a beautiful Sunday and Labor Day

August 28, 2025 / Ben Castellani

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This Week in Colorado Weather: August 25, 2025

August 25, 2025 / Andy

The unsettled weather pattern isn’t done with us just yet—and that’s good news for the rain-starved Front Range. While recent days have underdelivered in most areas, this week still holds promise for more moisture and continued cool weather. We break down when and where the best rain chances will line up this week, why optimism is cautious, and what to watch for as the pattern turns warmer and drier heading into Labor Day Weekend.

Colorado Forecast Update: Record warmth quickly gives way to a prolonged cool & wet stretch across the Front Range

August 21, 2025 / BoulderCAST Team

Thursday marks the final chapter of our late-summer heatwave, with record-challenging highs expected across the Front Range — but big changes are on the horizon. A cold front arrives tonight, ushering in cooler temps, a return of thunderstorms, and a wetter, more active pattern that could stick around well into next week. From sizzling heat to damaging hail, monsoonal moisture, and a long stretch of below-normal highs, today’s forecast update has a little bit of everything.

This Week in Colorado Weather: August 18, 2025

August 18, 2025 / Ben Castellani

If you’ve been quietly rooting for a late-season monsoon comeback, it might be time to recalibrate. Boulder’s summer has been historically dry, and this week won’t offer much relief, at least initially. A persistent ridge of high pressure is set to lock in more heat and keep moisture at bay. But don’t tune out just yet—there’s a subtle pattern shift coming that could open the door to cooler temps and better storm chances by the weekend. Let’s take a closer look.