August 19, 2026 2:55 AM

Roller Coaster Weather in this Weeks 5 Day

SOUTHERN CALIFORNIA, CA. (Pain In The Pass) >> This week’s weather forecast for Monday September 8 through Friday September 12 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 hot, sunny, and a high of 92°. Tuesday will be hot, sunny, with a high of 85°. Wednesday will be hot, sunny, and a high of 80°. Thursday will be hot, sunny, and a high of 80°. Friday will be hot, mostly sunny and a high of 83°.

High Deserts Area Average Weather/Temps:

Monday will be hot, sunny, windy, and a high of 92+°. Tuesday will be hot, sunny, windy, and a high of 85+°. Wednesday will be hot, sunny, windy and a high of 81+°. Thursday will be hot, mostly sunny, windy, and a high of 82+°. Friday will be hot, mostly sunny, windy, and a high 87+°. Higher temps in the Barstow area.

Mountains Area Average Weather/Temps:

Monday will be cool, sunny, windy, and a high of 73°. Tuesday will be cool, sunny. windy, and a high of 70°. Wednesday will be cool, sunny, windy and a high of 65°. Thursday will be cool, sunny, windy, and a high of 65°. Friday will be cool, mostly sunny, windy, and a high of 67°.

*Timing of the Weather on each day can change.

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Cajon Pass
2:55 am, Aug 19, 2026
temperature icon 72°F
broken clouds
Humidity: 28 %
Pressure: 1013 mb
Wind: 5 mph
Wind Gust: 6 mph
Clouds: 73%
Visibility: 10 km
Sunrise: 6:13 am
Sunset: 7:32 pm
  • Temperature
  • Precipitation
  • Rain Chance
  • Wind
  • Humidity
  • Pressure
5:00 am
temperature icon
63°/69°°F 0 mm 0% 2 mph 32% 1013 mb 0 mm/h
8:00 am
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73°/74°°F 0 mm 0% 2 mph 24% 1014 mb 0 mm/h
11:00 am
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87°/87°°F 0 mm 0% 5 mph 14% 1013 mb 0 mm/h
2:00 pm
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94°/94°°F 0 mm 0% 14 mph 11% 1011 mb 0 mm/h
5:00 pm
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90°/90°°F 0 mm 0% 15 mph 13% 1010 mb 0 mm/h
8:00 pm
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78°/78°°F 0 mm 0% 9 mph 28% 1012 mb 0 mm/h
11:00 pm
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71°/71°°F 0 mm 0% 4 mph 37% 1014 mb 0 mm/h
2:00 am
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68°/68°°F 0 mm 0% 2 mph 35% 1014 mb 0 mm/h