June 1, 2026 10:51 AM

Rollercoaster of Fall Weather in this Weeks 5 Day Forecast

SOUTHERN CALIFORNIA, CA. (Pain In The Pass) >> This week’s weather forecast for Monday October 20 through Friday October 24 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 warm, mostly sunny with morning fog/clouds, and a high of 86°. Tuesday will be warm, mostly sunny with morning fog/clouds, with a high of 85°. Wednesday will be cool, mostly sunny with morning fog/clouds, and a high of 75°. Thursday will be warm, warm, mostly sunny with morning fog/clouds, and a high of 78°. Friday will be warm, warm, mostly sunny with morning fog/clouds, and a high of 82°.

High Deserts Area Average Weather/Temps:

Monday will be warm, mostly sunny, windy, and a high of 80+°. Tuesday will be warm, mostly sunny, windy, and a high of 80+°. Wednesday will be cool, mostly sunny, windy and a high of 75+°. Thursday will be warm, mostly sunny, windy, and a high of 77+°. Friday will be warm, mosty sunny, windy, and a high 79+°. Higher temps in the Barstow area.

Mountains Area Average Weather/Temps:

Monday will be cool, mostly sunny, windy, and a high of 67°. Tuesday will be cool, mostly cloudy, gusty winds, and a high of 67°. Wednesday will be cold, mostly sunny, windy and a high of 59°. Thursday will be cool, sunny, windy, and a high of 62°. Friday will be cool, sunny, windy, and a high of 64°.

*Timing of the Weather on each day can change.

There are more ways to follow the Pain In The Pass. Join the Traffic Group on Facebook with over 164,000 members. Join the group on MeWe. Like us on the NEW page on Facebook. Follow us on Instagram, and also follow us on Threads, and X aka Twitter.

loader-image
Cajon Pass
10:51 am, Jun 1, 2026
temperature icon 79°F
clear sky
Humidity: 18 %
Pressure: 1012 mb
Wind: 2 mph
Wind Gust: 5 mph
Clouds: 1%
Visibility: 10 km
Sunrise: 5:38 am
Sunset: 7:56 pm
  • Temperature
  • Precipitation
  • Rain Chance
  • Wind
  • Humidity
  • Pressure
11:00 am
temperature icon
67°/79°°F 0 mm 0% 6 mph 18% 1012 mb 0 mm/h
2:00 pm
temperature icon
77°/78°°F 0 mm 0% 18 mph 21% 1012 mb 0 mm/h
5:00 pm
temperature icon
76°/77°°F 0 mm 0% 12 mph 20% 1011 mb 0 mm/h
8:00 pm
temperature icon
64°/64°°F 0 mm 0% 10 mph 42% 1013 mb 0 mm/h
11:00 pm
temperature icon
58°/58°°F 0 mm 0% 6 mph 50% 1015 mb 0 mm/h
2:00 am
temperature icon
59°/59°°F 0 mm 0% 6 mph 51% 1014 mb 0 mm/h
5:00 am
temperature icon
56°/56°°F 0 mm 0% 2 mph 51% 1014 mb 0 mm/h
8:00 am
temperature icon
70°/70°°F 0 mm 0% 1 mph 28% 1014 mb 0 mm/h