October 16, 2026 10:52 AM

Semi Tractor-Trailer Catches on Fire, Blocks Traffic on Northbound I-15 in the Cajon Pass

CAJON PASS, CA. (Pain In The Pass) >> California Highway Patrol temporarily shut down two northbound lanes on Interstate 15 after a semi tractor-trailer caught fire.

On Monday May 12, 2025, just before 4pm, a semi-truck’s engine caught fire while driving on the interstate just after the Highway 138 exit, according to the CHP traffic log.

The fire was coming from under the cabin and rear tire of the semi-tire, sending a white and black plume of smoke into the air, visible from several miles away.

Firefighters extinguished the blaze, and the driver was not injured. Two right lanes were closed while firefighters raced to put out the blaze.

CHP said the cause of the fire is unknown and under investigation.

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Cajon Pass
10:52 am, Oct 16, 2026
temperature icon 68°F
few clouds
Humidity: 33 %
Pressure: 1022 mb
Wind: 3 mph
Wind Gust: 8 mph
Clouds: 12%
Visibility: 10 km
Sunrise: 6:55 am
Sunset: 6:14 pm
  • Temperature
  • Precipitation
  • Rain Chance
  • Wind
  • Humidity
  • Pressure
11:00 am
temperature icon
69°/74°°F 0 mm 0% 13 mph 29% 1022 mb 0 mm/h
2:00 pm
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72°/78°°F 0 mm 0% 16 mph 27% 1021 mb 0 mm/h
5:00 pm
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74°/77°°F 0 mm 0% 14 mph 28% 1021 mb 0 mm/h
8:00 pm
temperature icon
70°/70°°F 0 mm 0% 7 mph 35% 1021 mb 0 mm/h
11:00 pm
temperature icon
65°/65°°F 0 mm 0% 5 mph 39% 1022 mb 0 mm/h
2:00 am
temperature icon
62°/62°°F 0 mm 0% 7 mph 40% 1021 mb 0 mm/h
5:00 am
temperature icon
60°/60°°F 0 mm 0% 7 mph 39% 1020 mb 0 mm/h
8:00 am
temperature icon
66°/66°°F 0 mm 0% 4 mph 34% 1021 mb 0 mm/h