Phoenix to Las Vegas — Weather & Driving Conditions
Driving from Phoenix, AZ to Las Vegas, NV? This 300-mile route follows I-17, I-40, US-93. 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.
Quick answer
- Distance: 300 mi (483 km)
- Typical drive time: ~4 hr 30 min without stops
- Main highway: I-17, I-40, US-93
- Watch for: Extreme Heat, Dust Storm, Flooding
What to watch for on this route
In the planner, TripCaptain highlights forecast weather risks between Phoenix, AZ 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 routinely exceed 46°C (115°F). Vehicle breakdowns are common and deadly without water.
- Dust Storm: Haboobs (massive dust walls) can appear suddenly, reducing visibility to zero. Pull over immediately.
- Flooding: Monsoon season (July-September) brings flash floods that cross roadways in minutes.
When to go, season by season
- Spring (Mar–May): Ideal driving season. Warm but not extreme. Low precipitation. Clear visibility.
- Summer (Jun–Aug): Extremely dangerous heat. Drive at night or very early morning. Carry 1 gallon of water per person.
- Fall (Sep–Nov): Monsoon season ends in September. October-November is excellent for driving.
- Winter (Dec–Feb): Pleasant desert temps. Light jacket weather. Fog possible near Hoover Dam in early morning.
Compare departure times
Open Phoenix 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 300 miles, and a packing list matched to the conditions ahead.
Ready to plan your Phoenix to Las Vegas trip?
Check forecast conditions along this route, compare nearby departure hours, and save your plan to follow changes in Live Mode.
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