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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.

Premium BoulderCAST Daily – Sun 09/28/25 | Clouds on the increase with a few isolated showers

September 28, 2025 / Andy

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Premium BoulderCAST Daily – Sat 09/27/25 | A great day for outdoor fall color viewing

September 27, 2025 / Andy

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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.