May 4, 2026 7:18 AM

Closure of the Highway 138 to Southbound I-15 On Ramp on Thursday.

CAJON PASS, CA. (Pain In The Pass) >> The California Department of Transportation (Caltrans) alerting the public of lane closures of Highway 138 on Thursday. If Weather permitting.

On Thursday, March 5th, from 9am to 1pm*, crews will be installing new light poles on Hwy 138.

This operation will require a closure of the Hwy 138 #2 lane and a closure of the Hwy 138 to southbound Interstate 15 on ramp. See map below.

Motorists are advised to plan ahead for your commute by checking the Pain In The Pass group, use alternate routes, and or expect delays on the Highway 138.

*Times can subject to change and could go longer or start earlier. Please use caution and remember to reduce your speed when approaching and driving through the roadwork zones. Schedules are subject to change due to inclement weather or construction issues.

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Cajon Pass
7:18 am, May 4, 2026
temperature icon 45°F
overcast clouds
Humidity: 78 %
Pressure: 1013 mb
Wind: 14 mph
Wind Gust: 11 mph
Clouds: 100%
Visibility: 10 km
Sunrise: 5:56 am
Sunset: 7:35 pm
  • Temperature
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8:00 am
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45°/45°°F 0 mm 0% 12 mph 78% 1014 mb 0 mm/h
11:00 am
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46°/48°°F 0 mm 0% 13 mph 70% 1014 mb 0 mm/h
2:00 pm
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51°/54°°F 0 mm 0% 17 mph 51% 1013 mb 0 mm/h
5:00 pm
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52°/52°°F 0 mm 0% 21 mph 42% 1011 mb 0 mm/h
8:00 pm
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47°/47°°F 0 mm 0% 14 mph 65% 1013 mb 0 mm/h
11:00 pm
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43°/43°°F 0.2 mm 20% 12 mph 76% 1014 mb 0 mm/h
2:00 am
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44°/44°°F 0.31 mm 31% 10 mph 78% 1013 mb 0 mm/h
5:00 am
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42°/42°°F 0.2 mm 20% 9 mph 83% 1013 mb 0 mm/h