May 11, 2026 11:34 PM

This week’s 5 Day Weather Forecast for Southern California

SOUTHERN CALIFORNIA, CA. (Pain In The Pass) >> This week’s weather forecast for Monday December 16 through Friday December 20 for Southern California. Check out the 5-day forecast below in your area.

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

Monday will be cool, sunny, and a high of 73°. Tuesday will be cool, sunny with afternoon gusty winds, and a high of 71°. Wednesday will be cool, sunny with gusty winds, and a high of 73°. Thursday will be cool, sunny, and a high of 71°. Friday will be cool, mostly sunny, and a high of 68°.

High Deserts Area Aveage Weather/Temps:

Monday will be cool, sunny, windy, and a high of 64+°. Tuesday will be cool, sunny, gusty winds, and a high of 60+°. Wednesday will be cool, sunny, windy and a high of 61+°. Thursday will be cool, sunny, windy, and a high of 64+°. Friday will be cool, sunny, and gusty winds, and a high 62°. Higher temps in the Barstow area.

Mountains Area Aveage Weather/Temps:

Monday will be cold, sunny, windy, and a high of 56°. Tuesday will be cold, sunny, gusty winds, and a high of 52°. Wednesday will be cold, sunny, windy and a high of 53°. Thursday will be cold, sunny, windy, and a high of 56°. Friday will be cold, sunny, gusty winds, and a high of 57°.

*Timing/Weather on each day may change.

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Cajon Pass
11:34 pm, May 11, 2026
temperature icon 66°F
clear sky
Humidity: 28 %
Pressure: 1013 mb
Wind: 2 mph
Wind Gust: 0 mph
Clouds: 5%
Visibility: 10 km
Sunrise: 5:50 am
Sunset: 7:41 pm
  • Temperature
  • Precipitation
  • Rain Chance
  • Wind
  • Humidity
  • Pressure
2:00 am
temperature icon
54°/62°°F 0 mm 0% 3 mph 28% 1013 mb 0 mm/h
5:00 am
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50°/55°°F 0 mm 0% 2 mph 22% 1013 mb 0 mm/h
8:00 am
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58°/58°°F 0 mm 0% 3 mph 11% 1013 mb 0 mm/h
11:00 am
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72°/72°°F 0 mm 0% 8 mph 16% 1012 mb 0 mm/h
2:00 pm
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75°/75°°F 0 mm 0% 16 mph 23% 1011 mb 0 mm/h
5:00 pm
temperature icon
58°/58°°F 0 mm 0% 18 mph 35% 1012 mb 0 mm/h
8:00 pm
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64°/64°°F 0 mm 0% 13 mph 57% 1014 mb 0 mm/h
11:00 pm
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59°/59°°F 0 mm 0% 10 mph 66% 1016 mb 0 mm/h