Grand Junction, Colo. – Storm clouds will build over western Colorado Tuesday, threatening flash flooding, hail, and travel delays across the region. Drivers should expect wet roads and low visibility, especially along I-70 and canyon areas where runoff may surge quickly.
According to the National Weather Service in Grand Junction, showers and thunderstorms are likely through Tuesday night with rain chances near 90 percent. The heaviest rainfall could trigger flash flooding in slot canyons, burn scars, and near the Colorado and Gunnison River basins. Residents are urged to avoid low-lying areas and reconsider non-essential travel until storms pass.
Localized hazards may include small hail and gusty winds in addition to heavy downpours. Emergency managers warn that debris flows could block mountain passes and rural roads, while poor drainage areas in Grand Junction could see temporary street flooding. Power outages are possible if lightning strikes infrastructure.
Conditions will remain unsettled through midweek, but forecasters say storms may weaken by Friday as temperatures climb into the mid-80s. That sets up a potentially calmer pattern heading into Labor Day weekend, though isolated storms cannot be ruled out in mountain valleys. Travelers should check road conditions and pack for variable weather if heading outdoors.
Warnings remain in effect through Tuesday night, with additional advisories possible if rainfall intensifies.
Five Day Forecast for Grand Junction, CO
- Tuesday: Showers and storms likely, high near 81. Flash flood risk continues.
- Wednesday: Widespread showers, chance of thunderstorms, high near 82.
- Thursday: Showers possible early, partly sunny later, high near 83.
- Friday: Mostly sunny, warmer, high near 84.
- Saturday: Sunny skies, high near 88. Calmer start to Labor Day weekend.
