September 13, 2026 7:57 PM

Normal Temps and Sunny Skies in this Week 5 Day Forecast

SOUTHERN CALIFORNIA, CA. (Pain In The Pass) >> This week weather forecast for Monday September 14 through Friday September 18 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 91°. Tuesday will be hot, sunny, and the high of 87°. Wednesday will be hot, sunny, and a high of 85°. Thursday will be hot, mostly sunny, and a high of 87°. Friday will be hot, mostly sunny, and a high of 90°.  

High Deserts Area Average Weather/Temps:

Monday will be hot, sunny, windy, and a high of 92+°. Tuesday will be hot, sunnys, windy, and a high of 88+°. Wednesday will be hot, sunny, windy and a high of 86+°. Thursday will be hot, sunny, windy, and a high of 88+°. Friday will be hot, mostly sunny, windy, and a high 93+°. Higher temps in the Barstow area. 

Mountains Area Average Weather/Temps:

Monday will be warm, sunny, windy, and a high of 75°. Tuesday will be warm, sunny, windy, and a high of 73°. Wednesday will be warm, sunny, windy, and a high of 71°. Thursday will be warm, sunny, windy and a high of 72°. Friday will be warm, mostly sunny, windy, and a high of 74°.

*Timing of the Weather on each day can change.

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Cajon Pass
7:57 pm, Sep 13, 2026
temperature icon 74°F
clear sky
Humidity: 38 %
Pressure: 1010 mb
Wind: 12 mph
Wind Gust: 7 mph
Clouds: 0%
Visibility: 10 km
Sunrise: 6:31 am
Sunset: 6:59 pm
  • Temperature
  • Precipitation
  • Rain Chance
  • Wind
  • Humidity
  • Pressure
8:00 pm
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67°/74°°F 0 mm 0% 8 mph 39% 1010 mb 0 mm/h
11:00 pm
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64°/70°°F 0 mm 0% 5 mph 45% 1010 mb 0 mm/h
2:00 am
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61°/65°°F 0 mm 0% 4 mph 51% 1010 mb 0 mm/h
5:00 am
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60°/60°°F 0 mm 0% 1 mph 62% 1011 mb 0 mm/h
8:00 am
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63°/63°°F 0 mm 0% 1 mph 52% 1012 mb 0 mm/h
11:00 am
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75°/75°°F 0 mm 0% 2 mph 27% 1011 mb 0 mm/h
2:00 pm
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80°/80°°F 0 mm 0% 10 mph 18% 1008 mb 0 mm/h
5:00 pm
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75°/75°°F 0 mm 0% 13 mph 23% 1008 mb 0 mm/h