August 17, 2026 11:33 PM

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
11:33 pm, Aug 17, 2026
temperature icon 74°F
overcast clouds
Humidity: 23 %
Pressure: 1015 mb
Wind: 12 mph
Wind Gust: 12 mph
Clouds: 95%
Visibility: 10 km
Sunrise: 6:12 am
Sunset: 7:35 pm
  • Temperature
  • Precipitation
  • Rain Chance
  • Wind
  • Humidity
  • Pressure
2:00 am
temperature icon
66°/71°°F 0 mm 0% 2 mph 27% 1015 mb 0 mm/h
5:00 am
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66°/69°°F 0 mm 0% 1 mph 29% 1015 mb 0 mm/h
8:00 am
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73°/73°°F 0 mm 0% 2 mph 22% 1015 mb 0 mm/h
11:00 am
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83°/83°°F 0 mm 0% 3 mph 17% 1014 mb 0 mm/h
2:00 pm
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89°/89°°F 0 mm 0% 12 mph 16% 1013 mb 0 mm/h
5:00 pm
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87°/87°°F 0 mm 0% 8 mph 16% 1012 mb 0 mm/h
8:00 pm
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76°/76°°F 0 mm 0% 3 mph 28% 1013 mb 0 mm/h
11:00 pm
temperature icon
71°/71°°F 0 mm 0% 3 mph 33% 1015 mb 0 mm/h