Denver to Salt Lake City — Weather & Driving Conditions

Driving from Denver, CO to Salt Lake City, UT? This 525-mile route follows I-70, I-15. TripCaptain checks the weather at every stop along the way — not just at each end — so you can see where conditions change before you pick a departure time.

What to watch for on this route

In the planner, TripCaptain highlights forecast weather risks between Denver, CO and Salt Lake City, UT and summarizes the analysis with a Hazard Score™ from 0 to 100. A higher score indicates lower forecast risk, without guaranteeing road conditions.

• Heavy Snow: Vail Pass and Eisenhower Tunnel on I-70 see massive snowfall. Chain laws enforced in winter.
• Black Ice: Mountain passes above 10,000 feet have black ice year-round on shaded curves.
• High Wind: Open stretches of I-70 in Utah see sustained winds over 70 km/h, dangerous for high-profile vehicles.

When to go, season by season

• Spring (Mar–May): Late-season snow through April. May is generally clear. Mud slides possible in canyons.
• Summer (Jun–Aug): Clear mountain driving. Afternoon thunderstorms possible above 8,000 feet. Watch for rock falls.
• Fall (Sep–Nov): Beautiful aspens in September. First snow by late October. Prepare for winter conditions.
• Winter (Dec–Feb): Snow tires or chains required on I-70. Multiple passes can close simultaneously. Check official road-condition alerts.

Compare departure times

Open Denver to Salt Lake City in the planner to check the forecast for your date and compare nearby hours within your plan's limits. Save the trip to follow changing conditions in Live Mode.

Fuel, EV range, and rest stops

See a weather-adjusted fuel or EV energy estimate for the drive, sensible break points across the 525 miles, and a packing list matched to the conditions ahead.

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