September 28, 2026 12:46 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
12:46 pm, Sep 28, 2026
temperature icon 73°F
scattered clouds
Humidity: 26 %
Pressure: 1008 mb
Wind: 11 mph
Wind Gust: 15 mph
Clouds: 31%
Visibility: 10 km
Sunrise: 6:41 am
Sunset: 6:38 pm
  • Temperature
  • Precipitation
  • Rain Chance
  • Wind
  • Humidity
  • Pressure
2:00 pm
temperature icon
72°/73°°F 0.02 mm 2% 2 mph 26% 1007 mb 0 mm/h
5:00 pm
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70°/72°°F 0.21 mm 21% 9 mph 25% 1007 mb 0 mm/h
8:00 pm
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62°/66°°F 0 mm 0% 14 mph 24% 1007 mb 0 mm/h
11:00 pm
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57°/57°°F 0 mm 0% 13 mph 30% 1008 mb 0 mm/h
2:00 am
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54°/54°°F 0 mm 0% 10 mph 32% 1008 mb 0 mm/h
5:00 am
temperature icon
54°/54°°F 0 mm 0% 10 mph 33% 1007 mb 0 mm/h
8:00 am
temperature icon
59°/59°°F 0 mm 0% 10 mph 31% 1009 mb 0 mm/h
11:00 am
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74°/74°°F 0 mm 0% 12 mph 21% 1008 mb 0 mm/h