Category: Winter Weather (Page 2 of 130)

These posts contain some discussion of the white stuff, whether it be mountain snow pack or a Front Range snowstorm.

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

October 8, 2025 / BoulderCAST Team / 0 Comments

11th 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 2025 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!

*This contest is now closed to entries*

September 2025 Graphical Weather Review: A pleasant transition into autumn with just enough rain to stave off drought

October 7, 2025 / BoulderCAST Team

September 2025 brought a classic Colorado blend to Boulder and the Front Range: near-normal temps, wetter-than-average skies, and a lively mix of sunshine and storms. A standout precipitation event around the 23rd delivered soaking rain in the lowlands and the first real coating of snow to the Mountains. The month eased us gently into autumn, with crisp mornings, comfortable afternoons, and brilliant foliage lighting up the higher terrain. And yes—who could forget that dramatic wave of Canadian wildfire smoke that swept through, reminding us how connected we are to the broader arid landscape of western North America. Here’s a quick and colorful graphical recap of our weather during September and how it relates to climatology.

This Week in Colorado Weather: October 6, 2025

October 6, 2025 / Ben Castellani

This week’s weather in the Front Range will be a bit of a rollercoaster. After Sunday night’s soaking rain and snow, Monday kicks off with fog, drizzle, and stubborn clouds before a midweek warm-up brings back the sunshine. But don’t get too cozy: frost season is knocking on the door, and snow signals are starting to flicker in the long-range models. Read on for the full breakdown, including what to expect today, what time rain showers will return later in the day Monday, and when late-season gardeners should start watching for frost and snowflakes.

P.S. Don’t forget to submit your entry to our 2025 First Snow Contest which closes Tuesday night at midnight!

Premium This Weekend in Colorado Weather: Very warm weather continues in the Front Range ahead of Saturday PM’s autumn cold front

October 2, 2025 / Ben Castellani

This content requires a subscription to BoulderCAST Premium.

This Week in Colorado Weather: September 29, 2025

September 29, 2025 / Andy

The Front Range kicks off October with a stretch of warm, dry weather—perfect for leaf peeping and outdoor plans. After a brief chance of storms on Monday, highs climb into the 80s by midweek under mostly sunny skies. But this unseasonable warmth and sunshine won’t last forever: a late-week system could bring cooler temps and a renewed shot at rain or even Mountain snow. Read on for all the details.

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 22, 2025

September 22, 2025 / Andy

This week’s weather kicks off with a dramatic autumn shift—widespread rain, clouds, and a serious temperature drop that will bring snow to the High Country. A strong cold front and upper-level system will make Tuesday feel more like late October, with highs stuck in the lower 50s. But don’t worry, sunshine and warmth are on the horizon again. By midweek, we’ll rebound into the 60s and maybe even flirt with 80 by Friday. Curious about how much soaking rain we’ll get—or where that snow might land? Read on for all the details.

This Week in Colorado Weather: September 15, 2025

September 15, 2025 / Ben Castellani

After a sunny and warm start to the week, the Front Range will trade blue skies for gray as a sluggish low-pressure system settles into northeast Colorado for several days. Rain chances build Tuesday and linger through Thursday, with well below normal temps and a few rounds of storms in the mix. But don’t expect a soaking: rainfall totals may vary widely, with the heaviest action likely landing northeast of Boulder and Denver towards Nebraska. The storm exits sometime Thursday leaving behind drier and warmer weather for the weekend.