Los Angeles to Las Vegas — Weather & Driving Conditions

Driving from Los Angeles, CA to Las Vegas, NV? This 270-mile route follows 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 Los Angeles, CA and Las Vegas, NV 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: Summer temps exceed 45°C (113°F) in the Mojave Desert, risking tire blowouts and engine overheating.
• Dust Storm: Sudden dust storms on I-15 near Baker can reduce visibility to zero in seconds.
• High Wind: Cajon Pass and open desert stretches see gusts over 90 km/h, especially dangerous for high-profile vehicles.

When to go, season by season

• Spring (Mar–May): Best driving season. Mild temps, low wind. Watch for dust storms in late afternoon.
• Summer (Jun–Aug): Extreme heat risk. Drive early morning or at night. Carry extra water and check tire pressure.
• Fall (Sep–Nov): Good conditions. Temps cool in October. Watch for Santa Ana wind events.
• Winter (Dec–Feb): Cajon Pass can see snow. Carry chains. Desert sections remain mild.

Compare departure times

Open Los Angeles to Las Vegas 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 270 miles, and a packing list matched to the conditions ahead.

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