The National Weather Service says the Denver International Airport recorded a trace of snow overnight, while Boulder saw a tenth of an inch.
Lows could hit 35 in metro Denver as rain will mix with and then change to snow overnight.
A photo of an enormous cloud in Colorado reaps Slovenian meteorologist top honor in National Geographic photo contest.
Two people were killed by lightning in as many days in Rocky Mountain National Park. An expert has advice for staying safe.
Spring thunderstorms could bring some heavy rain to parts of Colorado Friday, but there are no more tornadoes or golf ball-sized hail in the forecast.
Danger may persist for several more weeks because much of the snow in the Rockies hasn't started to melt.