May 20, 2026 3:18 AM

Nice Weather in this Weeks 5 Day Forecast

SOUTHERN CALIFORNIA, CA. (Pain In The Pass) >> This week’s weather forecast for Monday September 29 through Friday October 3 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, partly sunny with morning fog, and a high of 84°. Tuesday will be hot, partly sunny with morning fog, with a high of 81°. Wednesday will be hot, mostly sunny, and a high of 83°. Thursday will be hot, mostly sunny, and a high of 85°. Friday will be hot, mostly sunny, and a high of 83°.

High Deserts Area Average Weather/Temps:

Monday will be hot, partly sunny, windy, and a high of 82+°. Tuesday will be hot, partly sunny, windy, and a high of 80+°. Wednesday will be hot, sunny, windy and a high of 83+°. Thursday will be hot, mostly sunny, windy, and a high of 85+°. Friday will be hot, mostly sunny, windy, and a high 84+°. Higher temps in the Barstow area.

Mountains Area Average Weather/Temps:

Monday will be warm, partly sunny, windy, and a high of 68°. Tuesday will be cool, mostly sunny, windy, and a high of 65°. Wednesday will be cool, sunny, windy and a high of 65°. Thursday will be cool, mostly sunny, windy, and a high of 67°. Friday will be cool, mostly sunny, windy, and a high of 65°.

*Timing of the Weather on each day can change.

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Cajon Pass
3:18 am, May 20, 2026
temperature icon 54°F
clear sky
Humidity: 21 %
Pressure: 1015 mb
Wind: 2 mph
Wind Gust: 5 mph
Clouds: 0%
Visibility: 10 km
Sunrise: 5:43 am
Sunset: 7:48 pm
  • Temperature
  • Precipitation
  • Rain Chance
  • Wind
  • Humidity
  • Pressure
5:00 am
temperature icon
48°/52°°F 0 mm 0% 7 mph 22% 1016 mb 0 mm/h
8:00 am
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57°/59°°F 0 mm 0% 5 mph 19% 1015 mb 0 mm/h
11:00 am
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70°/70°°F 0 mm 0% 8 mph 10% 1014 mb 0 mm/h
2:00 pm
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76°/76°°F 0 mm 0% 1 mph 8% 1011 mb 0 mm/h
5:00 pm
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70°/70°°F 0 mm 0% 2 mph 9% 1009 mb 0 mm/h
8:00 pm
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65°/65°°F 0 mm 0% 6 mph 21% 1011 mb 0 mm/h
11:00 pm
temperature icon
60°/60°°F 0 mm 0% 6 mph 27% 1012 mb 0 mm/h
2:00 am
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58°/58°°F 0 mm 0% 4 mph 29% 1012 mb 0 mm/h