Next 7 departures
- TueOct 13
ClearNo significant weather expected. Temperatures 44–65°F along the way.
Along the way
Checkpoint · arrival Weather · temperature Los Angeles7 AM PDT Sunny55°F Cajon Summit8 AM PDT Sunny44°F Barstow8:45 AM PDT Sunny47°F Mountain Pass10:15 AM PDT Sunny47°F Las Vegas11:15 AM PDT Mostly sunny63°F Mesquite12:15 PM PDT Partly sunny65°F St. George2 PM MDT Scattered light rain showers58°F Zion2:45 PM MDT Scattered light rain showers60°F - WedOct 14
ClearNo significant weather expected. Temperatures 49–68°F along the way.
Along the way
Checkpoint · arrival Weather · temperature Los Angeles7 AM PDT Sunny59°F Cajon Summit8 AM PDT Sunny52°F Barstow8:45 AM PDT Sunny49°F Mountain Pass10:15 AM PDT Sunny49°F Las Vegas11:15 AM PDT Sunny65°F Mesquite12:15 PM PDT Sunny67°F St. George2 PM MDT Mostly sunny61°F Zion2:45 PM MDT Mostly sunny68°F - ThuOct 15
CautionGusts to 30 mph near Las Vegas around 11:15 AM PDT.
Along the way
Checkpoint · arrival Weather · temperature Los Angeles7 AM PDT Sunny59°F Cajon Summit8 AM PDT Sunny56°F Barstow8:45 AM PDT Sunny53°F Mountain Pass10:15 AM PDT Sunny54°F Las Vegas11:15 AM PDT Sunny71°F Mesquite12:15 PM PDT Sunny74°F St. George2 PM MDT Sunny65°F Zion2:45 PM MDT Sunny76°F - FriOct 16
CautionGusts to 32 mph near Cajon Summit around 8 AM PDT. Also at 1 other checkpoint.
Along the way
Checkpoint · arrival Weather · temperature Los Angeles7 AM PDT Sunny66°F Cajon Summit8 AM PDT Sunny56°F Barstow8:45 AM PDT Sunny57°F Mountain Pass10:15 AM PDT Sunny57°F Las Vegas11:15 AM PDT Sunny74°F Mesquite12:15 PM PDT Sunny80°F St. George2 PM MDT Sunny71°F Zion2:45 PM MDT Sunny75°F - SatOct 17
ClearNo significant weather expected. Temperatures 57–79°F along the way.
Along the way
Checkpoint · arrival Weather · temperature Los Angeles7 AM PDT Mostly sunny69°F Cajon Summit8 AM PDT Sunny58°F Barstow8:45 AM PDT Sunny59°F Mountain Pass10:15 AM PDT Mostly sunny57°F Las Vegas11:15 AM PDT Mostly sunny74°F Mesquite12:15 PM PDT Mostly sunny79°F St. George2 PM MDT Mostly sunny71°F Zion2:45 PM MDT Mostly sunny75°F - SunOct 18
ClearNo significant weather expected. Temperatures 58–79°F along the way.
Along the way
Checkpoint · arrival Weather · temperature Los Angeles7 AM PDT Sunny68°F Cajon Summit8 AM PDT Sunny58°F Barstow8:45 AM PDT Sunny58°F Mountain Pass10:15 AM PDT Sunny60°F Las Vegas11:15 AM PDT Sunny74°F Mesquite12:15 PM PDT Sunny79°F St. George2 PM MDT Sunny71°F Zion2:45 PM MDT Sunny77°F - MonOct 19
ClearNo significant weather expected. Temperatures 59–80°F along the way.
Along the way
Checkpoint · arrival Weather · temperature Los Angeles7 AM PDT Mostly sunny67°F Cajon Summit8 AM PDT Sunny59°F Barstow8:45 AM PDT Sunny59°F Mountain Pass10:15 AM PDT Sunny62°F Las Vegas11:15 AM PDT Sunny76°F Mesquite12:15 PM PDT Sunny80°F St. George2 PM MDT Sunny73°F Zion2:45 PM MDT Sunny78°F
The worst conditions expected at any checkpoint, timed to when you would reach it driving without stops. Levels use Road Travel’s driving-risk scale.
The route, stop by stop
Checkpoints in order, with driving time from Los Angeles (no stops) and elevation. The forecast above is timed to these.
- Los Angeles, CAStart 284 ftelevation
- Cajon Summit, CAMountain pass · Mile 68 · 1 h 6 min 4,190 ftelevation
- Barstow, CAMile 114 · 1 h 48 min 2,380 ftelevation
- Mountain Pass, CAMile 210 · 3 h 15 min 4,729 ftelevation
- Las Vegas, NVMile 269 · 4 h 9 min 2,028 ftelevation
- Mesquite, NVMile 349 · 5 h 17 min 1,600 ftelevation
- St. George, UTMile 388 · 5 h 55 min 2,754 ftelevation
- Zion, UTMile 428 · 6 h 44 min 3,927 ftelevation
Typical weather by month
Average daily highs and lows, and days with an inch or more of snow, at Los Angeles, St. George and Zion.
| Month | Los Angeles 230 ft | St. George 2,857 ft | Zion Zion National Park station · 4,038 ft | ||
|---|---|---|---|---|---|
| High / low °F | High / low °F | Snow days | High / low °F | Snow days | |
| Jan | 68° / 49° | 54° / 28° | 0.1 | 54° / 30° | 0.3 |
| Feb | 68° / 50° | 59° / 32° | 0.2 | 58° / 34° | 0.3 |
| Mar | 70° / 52° | 68° / 39° | 0.1 | 66° / 39° | 0.2 |
| Apr | 72° / 55° | 75° / 46° | 0 | 73° / 44° | 0 |
| May | 74° / 58° | 85° / 56° | 0 | 84° / 53° | 0 |
| Jun | 77° / 61° | 96° / 65° | 0 | 95° / 62° | 0 |
| Jul | 82° / 65° | 102° / 72° | 0 | 100° / 70° | 0 |
| Aug | 84° / 65° | 100° / 70° | 0 | 98° / 69° | 0 |
| Sep | 83° / 64° | 92° / 61° | 0 | 91° / 61° | 0 |
| Oct | 79° / 60° | 79° / 47° | 0 | 78° / 49° | 0 |
| Nov | 73° / 53° | 64° / 35° | 0 | 64° / 37° | 0.1 |
| Dec | 67° / 48° | 53° / 28° | 0 | 53° / 29° | 0.5 |
NOAA NCEI U.S. Climate Normals, 1991–2020: LOS ANGELES DWTN USC CAMPUS (USW00093134, 230 ft); ST GEORGE (USC00427516, 2,857 ft); ZION NP (USC00429717, 4,038 ft). Snow days are days with at least 1 inch of new snow. “—” means the station does not publish that normal.
Road conditions
Closures and chain rules change by the hour, so we link to the official reports for California, Nevada and Utah rather than repeat them.
- For this passCaltrans I-15 highway conditions
- California · CaltransQuickMap conditions and cameras
- California · winter rulesChain controls
- Nevada · NDOTNVroads conditions and cameras
- Utah · UDOTUDOT Traffic road conditions
- Utah · winter rulesTraction law summary
Check the official National Weather Service forecast and each state's road report before you leave.
Get alerts timed to where you’ll be when you get there
Road Travel plans the drive from Los Angeles to Zion with the forecast at every stretch for the hour you’ll reach it, then warns you about weather ahead while you drive.
Questions about this drive
How long is the drive from Los Angeles to Zion?
428 miles, about 6½ hours of driving without stops, by way of I-15. Fuel, food and rest stops add to that.
What is the highest point on the drive?
Mountain Pass, at 4,729 ft. It comes at mile 210, about 3 h 15 min of driving after you leave Los Angeles.
How cold is Zion in January?
The nearest long-term NOAA station, Zion National Park (4,038 ft), averages a high of 54°F and a low of 30°F in January (1991–2020 normals).