August 7, 2026 5:29 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
5:29 pm, Aug 7, 2026
temperature icon 91°F
clear sky
Humidity: 28 %
Pressure: 1013 mb
Wind: 11 mph
Wind Gust: 11 mph
Clouds: 9%
Visibility: 10 km
Sunrise: 6:04 am
Sunset: 7:45 pm
  • Temperature
  • Precipitation
  • Rain Chance
  • Wind
  • Humidity
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8:00 pm
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76°/86°°F 0 mm 0% 10 mph 30% 1013 mb 0 mm/h
11:00 pm
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72°/78°°F 0 mm 0% 5 mph 38% 1015 mb 0 mm/h
2:00 am
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69°/69°°F 0 mm 0% 5 mph 44% 1015 mb 0 mm/h
5:00 am
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66°/66°°F 0 mm 0% 3 mph 44% 1014 mb 0 mm/h
8:00 am
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75°/75°°F 0 mm 0% 3 mph 30% 1015 mb 0 mm/h
11:00 am
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87°/87°°F 0 mm 0% 4 mph 19% 1014 mb 0 mm/h
2:00 pm
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92°/92°°F 0 mm 0% 12 mph 14% 1011 mb 0 mm/h
5:00 pm
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89°/89°°F 0 mm 0% 17 mph 14% 1010 mb 0 mm/h