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Premium BoulderCAST Daily – Fri 10/23/26 | Another Warm Day Before Unsettled Weather Kicks In

The work week ends on a warm note. Highs this afternoon will be close to that 80-degree mark. In fact, southwest winds will be rather gusty in the 20 to 25 mph range, especially in Metro Denver and to the east of I-25. Lesser wind gusts will be found in the more sheltered areas east of the Foothills like Boulder. …

Premium This Weekend in Colorado Weather: An Unsettled Stretch Ahead, But How Much Rain Will We See?

Exceptionally moist south to southwest flow remains locked in place across the American Southwest today and tomorrow, with the large-scale weather pattern showing very little change. A sprawling Pacific storm system continues to spin just offshore of Los Angeles, while a stubborn ridge of high pressure over Texas remains firmly anchored in place. Together, these two atmospheric features are creating …

Premium BoulderCAST Daily – Wed 10/21/26 | Record-Setting Southwest Moisture Event Underway, But Denver Stays Dry

The latest GOES-West water vapor imagery shows an impressive closed upper-level low spinning just off the Southern California coast this morning. Wrapping around the southern flank of this circulation is a robust subtropical jet stream, effectively acting as an atmospheric conveyor belt transporting deep Pacific moisture northeastward into the Desert Southwest. The source region for much of this moisture extends …

Premium BoulderCAST Daily – Tue 10/20/26 | 70s Return as Colorado’s Next Soaking Storm Targets the San Juans (Again)

Radar is showing a few weak echoes drifting across Colorado early this morning, but don't get too excited. Most of this activity is confined to the High Country where it's producing pockets of light rain and snow. While a few of these echoes may appear to spread onto the Plains from time to time, the low levels of the atmosphere …

This Week in Colorado Weather: October 19, 2026

Last week’s storm finally delivered the kind of soaking rain we’ve been waiting months to see, but don’t get used to it. The atmosphere is shifting back into a familiar pattern this week, with summer-like warmth, abundant sunshine, and another surge of tropical moisture headed toward the Southwest. The catch? Most of that moisture will never make it to the Front Range. In this week’s update, we look at the drought-improving impacts of last week’s storm, why the San Juans are poised to cash in yet again, and whether a late-week cold front can squeeze out a little bit of rain for us before temperatures finally start feeling a bit more like October.
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Premium BoulderCAST Daily – Sun 10/18/26 | Warm and Sunny

Aweak area of low pressure over over Arizona and New Mexico will send its energy northward later today and tonight. But it is moisture-starved, and will only bring us mid to high clouds from time to time later today and around sunset. It won't put a damper on our highs of the middle 70s. A weak backdoor front will lower …

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

12th Annual BoulderCAST First Snowfall Contest

Ready or not, snow season is lurking out there somewhere. Maybe you’ve already dusted off the skis, mounted the winter tires, or convinced yourself that buying an Epic Pass counts as meteorological preparedness. Now comes the big question: when will we see our first measurable snowfall of the season? If recent years have taught us anything, it’s that Mother Nature doesn’t always follow the script. We’ve experienced both the earliest and latest first snows on record within the last six years, proving that just about anything is on the table.

That’s why it’s time once again for the BoulderCAST First Snowfall Contest. Take a look at Boulder’s snowfall history within, then submit your prediction for the date of Boulder’s first measurable snow (0.1″ or greater) and how much will fall. The closest forecasts will earn prizes, bragging rights, and the satisfaction of being more accurate than your friends.

*This contest has closed to entries.*

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