No closure is reported on I-15 at Cajon Pass at the moment.

Do I need chains on Cajon Pass?

No chain control is reported right now. Carry chains from November to April all the same: controls go up within minutes when snow starts.

Cajon Pass

I-15 between the Inland Empire and the High Desert, the road to Las Vegas. Snow, wind and wildfire all close it. Summit 4,260 ft, California.

Cajon Pass

Elev 4260 ft

I-15 over Cajon Pass: no chain controls or closures reported

As of 9:45 AM PDT, within 15 miles of the summit. The official word is Caltrans QuickMap.

What we cover in California

Work zones and lane closuresLive · Caltrans, California Highway Patrol, National Weather Service
Crashes and incidentsLive · Caltrans, California Highway Patrol, National Weather Service
Chain controlsLive · Caltrans, California Highway Patrol, National Weather Service

Is Cajon Pass open?: No closure is reported on I-15 at Cajon Pass at the moment.
Do I need chains on Cajon Pass?: No chain control is reported right now. Carry chains from November to April all the same: controls go up within minutes when snow starts.
What do R1, R2 and R3 mean?: R1: chains or snow tires required. R2: chains required, except 4wd/awd with snow tires. R3: chains required on all vehicles.