DENVER, Colo. – Travelers across Colorado face a wet and potentially dangerous stretch of weather as heavy rain and thunderstorms target the mountains and foothills through Thursday night. Drivers on I-25 and I-70 should prepare for reduced visibility, ponding water, and possible flash flooding, especially near burn scar areas.
According to the National Weather Service in Boulder, storms will strengthen by Wednesday afternoon and continue into Thursday, producing locally heavy rain of 1 to 2 inches in less than an hour. Communities across Denver, Boulder, Fort Collins, and Colorado Springs could experience urban flooding during evening commutes. The greatest flash flood threat extends into Thursday evening, with conditions gradually improving by Friday.
In higher elevations, showers and thunderstorms will dominate above 9,000 feet, affecting routes through Summit, Jackson, and Grand counties. Residents in Larimer and Boulder counties should stay alert, as steep terrain may funnel storm runoff quickly into creeks and low-lying areas.
Weekend travelers planning for Labor Day should expect lingering rain chances Friday and Saturday before sunnier skies return Sunday. Emergency managers urge residents to avoid flooded roads, keep devices charged, and check for alerts before heading outdoors.
Warnings remain in effect through Thursday night, with additional advisories possible if rainfall intensifies.
Five Day Forecast for Denver, Colorado
- Thursday: Showers and storms likely, high near 79. Heavy rain possible.
- Friday: Slight chance of storms, partly sunny, high 81.
- Saturday: More storms possible before midnight, high 79.
- Sunday (Labor Day Weekend): Mostly sunny, warmer, high near 81.
- Monday: Mostly clear, high near 83.




