Grand Junction drivers and hikers should prepare for an unsettled stretch of early fall weather as storms redevelop Thursday across western Colorado. Thunderstorms could bring dangerous lightning, gusty winds, and even accumulating snow over the state’s highest mountain passes. Travelers along U.S. Highway 50 and I-70 should monitor conditions closely as rapid weather shifts remain likely.
According to the National Weather Service in Grand Junction, storms will move back into the Four Corners region by late Thursday and spread across central and northern Colorado into the weekend. Gusts near 40 mph, frequent lightning, and small hail are possible in lower elevations. Higher peaks in the Elk, San Juan, and Gore ranges could pick up several inches of snow.
Residents in Mesa, Garfield, and Eagle counties should limit outdoor activity during peak storm hours Thursday afternoon and evening. Road crews warn that sudden downpours may cause slick stretches on I-70 through Glenwood Canyon, while loose debris could affect U.S. 50 south of Montrose.
For Grand Junction itself, dry and mild weather holds through Wednesday with highs near 78°F. Conditions change Thursday as clouds build and storm chances increase. Outdoor workers, school athletics, and evening commuters should plan for quick-moving cells and stay weather-aware.
Storms ease Friday, with mostly sunny skies returning by the weekend. Temperatures stay comfortable, though cooler nights in the mid-50s will signal the first true fall pattern of the season.
Warnings remain in effect for western Colorado through Thursday, with updates expected as storm timing sharpens.
Five Day Forecast for Grand Junction, CO
- Tuesday: Mostly sunny, high near 70°F. Breezy northwest winds 5–10 mph.
- Wednesday: Sunny, high near 78°F. Light evening breeze.
- Thursday: High near 82°F. Thunderstorms possible late day, gusty winds.
- Friday: Mostly sunny, high near 83°F. Calmer conditions.
- Saturday: High near 84°F. Clouds increase, chance of storms returns late.
