Record-Breaking March Heat Peaks Across Colorado

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A historic stretch of March heat is peaking across Colorado on Saturday, with temperatures reaching the upper 80s to near 90 degrees - potentially setting new all-time March records. This unusual warmth, driven by a strong high-pressure system and downslope winds, is bringing widespread critical fire weather conditions with low humidity and gusty winds.

Why it matters

This early-season heat wave is highly unusual for Colorado, where March temperatures typically remain cooler. The record-breaking temperatures and critical fire danger pose serious risks to public safety and property, especially given the state's history of devastating wildfires.

The details

After already tying the all-time March record high on Friday, temperatures are expected to climb even higher on Saturday. If Denver reaches 90 degrees, it will mark the first time in recorded history the city has hit that milestone in March. The warmth is being driven by a strong ridge of high pressure and downslope winds, which will boost temperatures further. However, the heat comes with serious concerns, as relative humidity is expected to drop below 13% across the plains, with gusty winds developing through the afternoon.

• On Friday, temperatures tied the all-time March record high in Colorado.
• On Saturday, temperatures are forecast to reach the upper 80s to near 90 degrees, potentially setting new all-time March records.
• A weak cold front will move through late Saturday night, bringing a slight cooldown on Sunday with highs in the mid-60s.

What’s next

Fire weather concerns will return early next week as high pressure rebuilds, with elevated to critical conditions possible by midweek as winds increase.