via.kdvr.com
Cooler temperatures, return of rain, thunderstorms to Front Range
DENVER -- Thursday is the best chance of rain and thunderstorms this week in Denver and along the Front Range. The combination of a cold front and a surge of monsoon moisture will increase the rain chances. The day will start with sunshine, then there's a 40 percent chance of rain and thunderstorms from 3 p.m. to 8 p.m. Heavy rainfall is possible.