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
TripCaptain flags black ice, dense fog, heavy snow, high wind, heavy rain, and low visibility segment by segment between Los Angeles, CA and Las Vegas, NV, and gives the trip a clear Hazard Score™ — a 0-100 read where higher is safer.
- 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.
Pick the safest time to leave
Compare departure windows for Los Angeles to Las Vegas and choose the one with the lowest risk and the arrival time you want.
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.