BoulderCAST

Colorado Forecast Update: Triple Digits & Wildfire Smoke Loom as the Monsoon Temporarily Shuts Down

July 30, 2026 / BoulderCAST Team / 0 Comments

After a lively stretch of monsoon storms and even some flooding across the state, the atmosphere is shifting in a way that favors heat, haze, and a temporary shutdown of our storm pipeline for the Front Range. A stout Southwest heat dome is about to take center stage, triple‑digit temperatures are lining up for Boulder and Denver, and wildfire smoke is poised to make an unwelcome return. We break down the ridge, the records, the smoke, and the eventual cooldown.

Premium BoulderCAST Daily – Wed 07/29/26 | Final Storm‑Filled Afternoon Before an Expanding Desert Southwest Heat Dome Takes Over

July 29, 2026 / Ben Castellani

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Premium BoulderCAST Daily – Tue 07/28/26 | Front Range Primed for Widespread Thunderstorms as Monsoon Reloads

July 28, 2026 / Ben Castellani

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This Week in Colorado Weather: July 27, 2026

July 27, 2026 / Ben Castellani / 0 Comments

Eastern Colorado just came off a truly blistering weekend, with Denver and Boulder both shattering daily records as temperatures surged past 100°F on back‑to‑back days. Now the pattern is shifting, at least temporarily. An unusually juiced monsoon plume will set the stage for more robust afternoon storms through mid‑week, including a legitimate threat for locally heavy rainfall and burn‑scar flooding. But the faucet will shut off quickly. A rapidly intensifying Southwest heat dome will retrograde into Arizona late‑week, cutting off monsoon flow, drying out northern Colorado, and potentially steering wildfire smoke from the Pacific Northwest into the state as winds shift. By the weekend, the Front Range will sit on the fringe of that expanding heat dome, meaning another round of hot, dry weather and potential triple-digit readings again. Read on for all the details.