BoulderCAST

CONTEST: It’s that time again! Enter your first snow prediction for a chance to win! ❄️☃️

October 12, 2026 / Ben Castellani / 0 Comments

12th Annual BoulderCAST First Snowfall Contest

Ready to toss that first snowball of the season? Maybe you’ve already waxed your skis, shelled out for that pricey Epic Pass, or jumped the gun on snow tires (again). Well, hold onto your mittens—Boulder’s first big snow could be just around the corner, or not! Mother Nature has been playing tricks on us lately. In the past five years alone, we’ve seen both the earliest and latest first snows on record. But, what will 2026 bring? That’s where you come in.

We’re kicking off our annual First Snow Contest! Please take a look at Boulder’s snowfall history within, then submit your best guess for when the first measurable snow (≥0.1″) will fall in Boulder—and how much will accumulate. The closest guesses will win a selection of prizes!

NOTE: Please only click “Submit” once. It just takes a few seconds to trigger. Thanks!

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Thank you for your response. ✨

*Contest closes Friday October 16, 2026 at 11:59 PM MT*

Colorado Forecast Update: All Systems Go for Beneficial Rain and Snow Throughout the Front Range

October 13, 2026 / Ben Castellani / 0 Comments

After months of watching drought deepen across the Front Range, Colorado is finally getting a storm that could turn the tide. A slow-moving upper low will tap into an unusually rich plume of subtropical moisture and bring widespread rain to much of northern Colorado, along with the season’s first meaningful Mountain snowfall. How much rain can Boulder and Denver expect, who stands the best chance of topping an inch, how low will snow levels drop during the event and which night will bring the season’s first freeze? We break down the latest forecast, timing, rainfall totals, and snow prospects.

This Week in Colorado Weather: October 12, 2026

October 12, 2026 / Andy / 0 Comments

After one final taste of summer warmth on Monday, the weather pattern across Colorado is about to undergo a dramatic shift. A much colder and wetter setup is taking aim at the Front Range this week, with rain returning to the forecast, accumulating snow in the Mountains, and perhaps our first real frost threat of the season by week’s end. While we’ve seen promising storm systems fizzle already this fall, the data continues to suggest this one has a better chance of delivering. We break down the timing of the cooldown, what the latest ensemble guidance says about rainfall totals, and why Friday and Saturday mornings will bear watching for frost.

Premium BoulderCAST Daily – Sun 10/11/26 | The 80s Continue Through Monday But A Change Is On The Horizon

October 11, 2026 / Andy

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Premium BoulderCAST Daily – Sat 10/10/26 | Mild Temperatures Continue

October 10, 2026 / Andy

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Premium BoulderCAST Daily – Fri 10/09/26 | Mild and Quiet Weather Through the Weekend

October 9, 2026 / Andy

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Premium This Weekend in Colorado Weather: 80s Continue With a Big Western Storm Brewing, But Colorado’s Role Next Week Remains Unclear

October 8, 2026 / Ben Castellani

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September 2026 Weather Review: Extreme Drought Rolls On Alongside Boulder’s 17th Consecutive Warmer Than Normal Month

October 7, 2026 / BoulderCAST Team / 0 Comments

September 2026 will be remembered as the month that put an exclamation point on an extraordinary water year of heat and dryness in Boulder, with less than 20% of normal precipitation falling during the month and temperatures more than five degrees above average. Despite a strong late-season monsoon, moisture largely avoided the Front Range, and especially Boulder County, culminating with a great modeling collapse of a significant rain event in the final days of the month tied to the remnants of Hurricane Polo.

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