Los Angeles to Denver — Weather & Driving Conditions

Driving from Los Angeles, CA to Denver, CO? This 1020-mile route follows I-15, I-70. 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 Los Angeles, CA and Denver, CO and summarizes the analysis with a Hazard Score™ from 0 to 100. A higher score indicates lower forecast risk, without guaranteeing road conditions.

• Extreme Heat: Mojave Desert and Utah stretches see extreme heat exceeding 45°C in summer.
• Heavy Snow: I-70 through the Rockies (Vail Pass, Eisenhower Tunnel) gets massive snowfall in winter.
• Driver Fatigue: At 15 hours of driving, fatigue is critical. Plan overnight stops. TripCaptain tracks continuous driving time.

When to go, season by season

• Spring (Mar–May): Mixed conditions — desert warming, mountains still snowy. Snow on Colorado passes through May.
• Summer (Jun–Aug): Extreme desert heat but clear mountain passes. Plan for 2-day trip with overnight in Utah.
• Fall (Sep–Nov): Best overall season. Desert cooling, mountain passes clear. Aspens peak in late September.
• Winter (Dec–Feb): Colorado passes extremely dangerous. Desert sections mild. May need chains for I-70.

Compare departure times

Open Los Angeles to Denver 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 1020 miles, and a packing list matched to the conditions ahead.

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