October 15, 2026 3:32 PM

A Drop then a Gradual Warmup in the 5 Day Forecast

SOUTHERN CALIFORNIA, CA. (Pain In The Pass) >> This week’s weather forecast for Monday May 12 through Friday May 16 for Southern California. Check out the 5-day forecast below in your area.

Cajon Pass/Inland Empire Valley Area Average Weather/Temps:

Monday will be warm, partly cloudy, and a high of 78°. Tuesday will be cool, partly cloudy with morning fog and a chance of light rain showers, with a high of 70°. Wednesday will be warm, mostly sunny, and a high of 76°. Thursday will be warm, mostly sunny, and a high of 78°. Friday will be warm, mostly sunny, and a high of 77°.

High Deserts Area Average Weather/Temps:

Monday will be warm, sunny, gusty winds, and a high of 77+°. Tuesday will be cool, sunny, gusty winds, and a high of 67+°. Wednesday will be warm, sunny, windy and a high of 75+°. Thursday will be warm, mostly sunny, windy, and a high of 82+°. Friday will be warm, mostly sunny, windy, and a high 83+°. Higher temps in the Barstow area.

Mountains Area Average Weather/Temps:

Monday will be cool, sunny, gusty winds, and a high of 61°. Tuesday will be cold, sunny, gusty winds, and a high of 51°. Wednesday will be cold, sunny, windy and a high of 59°. Thursday will be cool, mostly sunny, windy, and a high of 63°. Friday will be cold, mostly sunny, windy, and a high of 65°.

*Timing/Weather on each day may change.

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Cajon Pass
3:32 pm, Oct 15, 2026
temperature icon 72°F
clear sky
Humidity: 20 %
Pressure: 1017 mb
Wind: 19 mph
Wind Gust: 20 mph
Clouds: 4%
Visibility: 10 km
Sunrise: 6:54 am
Sunset: 6:15 pm
  • Temperature
  • Precipitation
  • Rain Chance
  • Wind
  • Humidity
  • Pressure
5:00 pm
temperature icon
73°/75°°F 0 mm 0% 11 mph 22% 1018 mb 0 mm/h
8:00 pm
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65°/68°°F 0 mm 0% 1 mph 33% 1019 mb 0 mm/h
11:00 pm
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61°/61°°F 0 mm 0% 4 mph 42% 1022 mb 0 mm/h
2:00 am
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58°/58°°F 0 mm 0% 4 mph 46% 1022 mb 0 mm/h
5:00 am
temperature icon
58°/58°°F 0 mm 0% 3 mph 48% 1022 mb 0 mm/h
8:00 am
temperature icon
63°/63°°F 0 mm 0% 4 mph 47% 1023 mb 0 mm/h
11:00 am
temperature icon
75°/75°°F 0 mm 0% 12 mph 29% 1023 mb 0 mm/h
2:00 pm
temperature icon
80°/80°°F 0 mm 0% 14 mph 26% 1020 mb 0 mm/h