October 3, 2026 9:04 PM

First Week of December 5 Day Forecast

SOUTHERN CALIFORNIA, CA. (Pain In The Pass) >> This week’s weather forecast for Monday December 1 through Friday December 5 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 cool, sunny with gusty winds, and a high of 72°. Tuesday will be cool, sunny with gusty winds, with a high of 68°. Wednesday will be cool, partly sunny with a chance of rain showers, and a high of 64°. Thursday will be cool, partly cloudy with a chance of rain showers, and a high of 68°. Friday will be cool, mostly sunny with gusty winds, and a high of 65°.

High Deserts Area Average Weather/Temps:

Monday will be cool, sunny, windy, and a high of 61+°. Tuesday will be cool, sunny, windy, and a high of 63+°. Wednesday will be cold, partly sunny with a small chance of rain showers, windy and a high of 56+°. Thursday will be cold, partly sunny with a chance of rain showers, windy, and a high of 57+°. Friday will be cool, mosty sunny, windy, and a high 60+°. Higher temps in the Barstow area.

Mountains Area Average Weather/Temps:

Monday will be cold, sunny, windy, and a high of 49°. Tuesday will be cold, sunny, windy, and a high of 50°. Wednesday will be cold, partly cloudy with a chance of rain/snow showers, windy and a high of 42°. Thursday will be cold, partly cloudy with a chance of rain/snow showers, windy, and a high of 40°. Friday will be cold, mostly sunny, windy, and a high of 46°.

*Timing of the Weather on each day can change.

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Cajon Pass
9:04 pm, Oct 3, 2026
temperature icon 75°F
clear sky
Humidity: 22 %
Pressure: 1012 mb
Wind: 3 mph
Wind Gust: 5 mph
Clouds: 0%
Visibility: 10 km
Sunrise: 6:45 am
Sunset: 6:31 pm
  • Temperature
  • Precipitation
  • Rain Chance
  • Wind
  • Humidity
  • Pressure
11:00 pm
temperature icon
71°/73°°F 0 mm 0% 4 mph 24% 1012 mb 0 mm/h
2:00 am
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66°/69°°F 0 mm 0% 1 mph 27% 1013 mb 0 mm/h
5:00 am
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64°/64°°F 0 mm 0% 1 mph 34% 1015 mb 0 mm/h
8:00 am
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74°/74°°F 0 mm 0% 2 mph 34% 1017 mb 0 mm/h
11:00 am
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85°/85°°F 0 mm 0% 7 mph 23% 1016 mb 0 mm/h
2:00 pm
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90°/90°°F 0 mm 0% 11 mph 18% 1014 mb 0 mm/h
5:00 pm
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86°/86°°F 0 mm 0% 14 mph 20% 1013 mb 0 mm/h
8:00 pm
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75°/75°°F 0 mm 0% 2 mph 24% 1014 mb 0 mm/h