Story written by Jordan Root, AccuWeather.com Meteorologist
The recent stretch of above-average warmth and nice weather across the Front Range corridor will be coming to a halt.
A blast of cold air diving out of Canada will overspread the region on Saturday through Sunday night, forcing folks to dig out the winter jackets once again in exchange for the t-shirts and shorts they've grown accustomed to lately.
Accompanying the cold air will be heavy snowfall which will bring significant accumulations to the mountains.
Cities such as Casper, Wyo., Cheyenne, Wyo., and Denver, Colo., will also get their fair share of snow.
Precipitation may arrive as rain on Saturday and Saturday night before the cold air wins out and changes it over to snow.
Accumulations may measure between 3 to 6 inches on grassy surfaces in these areas. Snowfall amounts will depend on snowfall intensity and the time at which it falls.
Snow will have a tougher time accumulating during the day due to the spring sun angle and recent warm ground temperatures. However, most of Denver's snow will likely fall after dark on Sunday, which will favor heavier accumulations.
Although accumulations won't be as significant on roadways, slushy spots are likely to develop and could freeze as temperatures plunge at night.
Motorists traveling on I-25 between Casper, Cheyenne, and Denver are urged to use caution as well as folks traveling on I-70 and I-80.
The sudden rush of cold air will likely come as a surprise to many. A recent warm stretch has kept temperatures in the 60s and 70s along the I-25 corridor, which is well above average for this time of the year.
The arrival of cold front will drop high temperatures in Denver and surrounding areas to levels not seen since March 22.
That date marks the last time Denver recorded a high temperature in the 30s. Sunday's high is expected to be 35, a 38 degree difference from Saturday's expected high of 73.
Lows will be much colder with temperatures bottoming out in the teens and low 20s on Sunday night.
There are many things to look forward to though. The snow and cold will have a tough time sticking around.
Temperatures are expected to rebound back into the 50s and 60s for Monday and Tuesday with no precipitation in sight.