Pueblo, Colorado – Southern Colorado is wrapping up a brutal stretch of triple-digit heat with a sharp cooldown and growing threat of thunderstorms midweek. Residents in the plains, including Pueblo and La Junta, could see highs topping 103°F through Tuesday before a surge of monsoon moisture brings relief—and the potential for severe weather—starting Wednesday.
According to the National Weather Service in Pueblo, a frontal system combining with monsoon humidity will ramp up precipitation chances across the region. The most active days will be Wednesday through Friday, with storm chances reaching 50% in the mountains and 30% in the valleys by midweek. The Plains will still see highs near 99°F Wednesday, but temperatures begin to fall, and skies will become partly cloudy.
The Mountains and Valleys will feel the shift more quickly, with high temperatures dropping into the low 80s by Wednesday and a noticeable uptick in cloud cover and thunderstorm risk. Overnight lows in some high-altitude areas could dip into the 40s.
Residents are urged to stay weather-aware, especially during peak travel hours and in areas prone to flash flooding. Outdoor activities should be scheduled early in the week before storms arrive.
Additional updates and advisories are likely as storm chances increase into late week.