May 20, 2026 1:05 AM

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 2 through Friday December 6 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 75°. Tuesday will be cool, sunny with morning fog/clouds, and a high of 74°. Wednesday will be cool, sunny with morning fog/clouds, and a high of 74°. Thursday will be warm, sunny, and a high of 77°. Friday will be warm, mostly sunny with gusty winds, and a high of 79°.

High Deserts Area Aveage Weather/Temps:

Monday will be cool, sunny, windy, and a high of 71+°. Tuesday will be cool, mostly sunny, windy, and a high of 71+°. Wednesday will be cool, sunny, windy and a high of 71+°. Thursday will be cool, sunny, gusty winds, and a high of 72+°. Friday will be cool, sunny, and gusty winds, and a high 74°. Higher temps in the Barstow area.

Mountains Area Aveage Weather/Temps:

Monday will be cold, sunny, windy, and a high of 57°. Tuesday will be cold, mostly sunny, windy, and a high of 56°. Wednesday will be cold, sunny, windy and a high of 56°. Thursday will be cold, sunny, gusty winds, and a high of 57°. Friday will be cold, sunny, gusty winds, and a high of 59°.

*Timing/Weather on each day may change.

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Cajon Pass
1:05 am, May 20, 2026
temperature icon 56°F
clear sky
Humidity: 17 %
Pressure: 1015 mb
Wind: 4 mph
Wind Gust: 8 mph
Clouds: 0%
Visibility: 10 km
Sunrise: 5:43 am
Sunset: 7:48 pm
  • Temperature
  • Precipitation
  • Rain Chance
  • Wind
  • Humidity
  • Pressure
2:00 am
temperature icon
51°/56°°F 0 mm 0% 3 mph 17% 1015 mb 0 mm/h
5:00 am
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50°/54°°F 0 mm 0% 7 mph 18% 1015 mb 0 mm/h
8:00 am
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59°/60°°F 0 mm 0% 5 mph 15% 1015 mb 0 mm/h
11:00 am
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70°/70°°F 0 mm 0% 8 mph 10% 1014 mb 0 mm/h
2:00 pm
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76°/76°°F 0 mm 0% 1 mph 8% 1011 mb 0 mm/h
5:00 pm
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70°/70°°F 0 mm 0% 2 mph 9% 1009 mb 0 mm/h
8:00 pm
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65°/65°°F 0 mm 0% 6 mph 21% 1011 mb 0 mm/h
11:00 pm
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60°/60°°F 0 mm 0% 6 mph 27% 1012 mb 0 mm/h