March 10, 2026 2:27 AM

More Sunny Days in December this weeks 5 Day Forecast

SOUTHERN CALIFORNIA, CA. (Pain In The Pass) >> This week’s weather forecast for Monday December 15 through Friday December 19 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, sunny, and a high of 82°. Tuesday will be warm, sunny, with a high of 83°. Wednesday will be warm, mostly sunny, and a high of 79°. Thursday will be warm, sunny with morning fog, and a high of 81°. Friday will be warm, mostly sunny with morning fog, and a high of 79°.

High Deserts Area Average Weather/Temps:

Monday will be cool, sunny, windy, and a high of 69+°. Tuesday will be cool, sunny, windy, and a high of 70+°. Wednesday will be cool, sunny, windy and a high of 70+°. Thursday will be cool, mostly sunny, windy, and a high of 72+°. Friday will be cool, mosty sunny, windy, and a high 69+°. Higher temps in the Barstow area.

Mountains Area Average Weather/Temps:

Monday will be cold, sunny, windy, and a high of 61°. Tuesday will be cold, sunny, windy, and a high of 65°. Wednesday will be cold, sunny, windy and a high of 61°. Thursday will be cold, mostly sunny, windy, and a high of 62°. Friday will be cold, mostly sunny, windy, and a high of 62°.

*Timing of the Weather on each day can change.

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Cajon Pass
2:27 am, Mar 10, 2026
temperature icon 48°F
clear sky
Humidity: 77 %
Pressure: 1014 mb
Wind: 9 mph
Wind Gust: 11 mph
Clouds: 5%
Visibility: 10 km
Sunrise: 7:06 am
Sunset: 6:52 pm
  • Temperature
  • Precipitation
  • Rain Chance
  • Wind
  • Humidity
  • Pressure
5:00 am
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35°/43°°F 0 mm 0% 6 mph 79% 1014 mb 0 mm/h
8:00 am
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38°/41°°F 0 mm 0% 8 mph 81% 1015 mb 0 mm/h
11:00 am
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58°/58°°F 0 mm 0% 5 mph 54% 1017 mb 0 mm/h
2:00 pm
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64°/64°°F 0 mm 0% 7 mph 43% 1016 mb 0 mm/h
5:00 pm
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60°/60°°F 0 mm 0% 8 mph 44% 1016 mb 0 mm/h
8:00 pm
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53°/53°°F 0 mm 0% 5 mph 71% 1019 mb 0 mm/h
11:00 pm
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52°/52°°F 0 mm 0% 3 mph 69% 1021 mb 0 mm/h
2:00 am
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51°/51°°F 0 mm 0% 3 mph 58% 1021 mb 0 mm/h