Denver, Colo. – Holiday travelers could face a stormy afternoon on Labor Day as thunderstorms build across the Denver metro and I-25 corridor. Storms are expected to bring lightning, brief heavy rain, and gusty winds, which may slow traffic for those heading back from the mountains.
According to the National Weather Service in Boulder, showers and storms will develop after noon Monday, September 1, with the strongest activity expected between 2 p.m. and 6 p.m. Drivers on I-70 and U.S. 36 should be alert for sudden downpours that could reduce visibility. While severe weather is not widespread, lightning strikes and quick bursts of rain remain the main hazards.
Communities across Jefferson, Arapahoe, and Adams counties will see sunshine early, but conditions will quickly shift in the afternoon. Outdoor Labor Day events should prepare for interruptions and have shelter plans in place. Officials advise residents to avoid outdoor recreation on high ridges or open spaces during storm development.
Looking ahead, Tuesday will return to sunny skies with highs in the low 80s across the metro. A second round of afternoon storms is possible Wednesday, though weaker than Monday’s system. The end of the workweek trends dry, with warming conditions through Friday.
Labor Day travelers should remain weather-aware and monitor updates, especially if driving through the mountains or foothills Monday afternoon.
Five-Day Forecast for Denver, Colorado
- Monday (Labor Day): Sunny early, storms by afternoon. High 83, low 55.
- Tuesday: Mostly sunny, warm. High 83, low 55.
- Wednesday: Partly cloudy, storm chance. High 79, low 53.
- Thursday: Mostly sunny, dry. High 82, low 53.
- Friday: Sunny, warmer. High 87, low 55.
