April 12, 2026 9:49 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
9:49 am, Apr 12, 2026
temperature icon 48°F
light rain
Humidity: 85 %
Pressure: 1014 mb
Wind: 11 mph
Wind Gust: 16 mph
Clouds: 98%
Visibility: 10 km
Sunrise: 6:21 am
Sunset: 7:18 pm
  • Temperature
  • Precipitation
  • Rain Chance
  • Wind
  • Humidity
  • Pressure
11:00 am
temperature icon
49°/49°°F 1 mm 100% 10 mph 88% 1014 mb 0 mm/h
2:00 pm
temperature icon
49°/49°°F 1 mm 100% 10 mph 87% 1014 mb 0 mm/h
5:00 pm
temperature icon
49°/49°°F 1 mm 100% 15 mph 72% 1013 mb 0 mm/h
8:00 pm
temperature icon
46°/46°°F 0 mm 0% 13 mph 73% 1015 mb 0 mm/h
11:00 pm
temperature icon
39°/39°°F 0 mm 0% 10 mph 82% 1017 mb 0 mm/h
2:00 am
temperature icon
40°/40°°F 0 mm 0% 8 mph 87% 1016 mb 0 mm/h
5:00 am
temperature icon
40°/40°°F 0 mm 0% 7 mph 87% 1016 mb 0 mm/h
8:00 am
temperature icon
43°/43°°F 0 mm 0% 7 mph 78% 1017 mb 0 mm/h