BoulderCAST

Colorado Monsoon Update: Subtropical Moistures Surges to End the Week, Cooler and Storm‑Friendly Pattern Holds Through the Weekend

August 13, 2026 / / 1 Comment

After weeks of sizzling heat and hydrological disappointment, a deep surge of monsoon moisture is pushing into the Front Range today, with precipitable water values approaching 200% of normal and a highly efficient rainfall environment already in place. Satellite imagery and overnight boundary interactions are signaling an active convective day ahead, with both severe and flooding hazards on the table Thursday. Monsoon storm chances will progressively decrease but ultimately stick around through the weekend alongside below normal temperatures. We dive into the forecast specifics, including the monsoon moisture transport, mesoscale boundaries, severe and flood risk, expected rainfall amounts, and how the weekend will play out as subtropical moisture slowly retreats.

Continue reading

This Week in Colorado Weather: August 10, 2026

August 10, 2026 / / 0 Comments

As we kick off the week, the Front Range is staring down a few more days of stubborn August heat — but that pattern is about to crack. A midweek shift will pull cooler air, deeper monsoon moisture, and widespread storms back into Colorado, including a real shot at heavy rainfall. After weeks of haze, heat, and bone‑dry afternoons, the atmosphere finally looks ready to turn the page. We break down what this transition means for the Boulder-Denver area, and how long the cooler, wetter pattern is poised to stick around.

Continue reading

July 2026 Graphical Weather Review: In Some Respects, Boulder’s All-Time Hottest Month on Record

August 6, 2026 / / 0 Comments

July 2026 along the Front Range was relentlessly hot, dry, and devoid of storms, dominated by stubborn upper‑level ridging that fueled long, punishing heatwaves and pushed Denver and Boulder into one of their hottest months on record. Occasional pulses of monsoonal moisture did break through, producing slow‑moving thunderstorms and localized flash flooding near vulnerable burn scars, while wildfire smoke from the West periodically dimmed skies and degraded air quality early in the month. With meaningful rainfall largely absent, Colorado’s severe drought deepened, cementing a July defined far more by heat and haze than by the usual rhythm of afternoon thunderstorms.

Here’s a graphical look at how July 2026 unfolded across Boulder, Denver, and the Front Range — and how it compared to climatology.

Continue reading

« Older posts

Privacy Policy

© 2026 Front Range Weather, LLC

Up ↑