A Heat Advisory is in effect from 10 a.m. through Thursday evening across parts of Colorado. A First Alert Weather Day has been issued due to the extreme heat.  In the high country, gusty winds up to 40 mph combined with low humidity are creating critical fire weather conditions.

Scorching hot temperatures, likely soaring into the triple digits, will settle across Denver and the Front Range -- potentially breaking a 45-year-old weather record.

The National Weather Service issued a heat advisory through 7 p.m. for several counties along the Front Range, including Denver, El Paso and Weld counties.