April 21, 2026 5:40 AM

Monday September 23 – Friday September 27 Work Week’s Forecast for SoCal

SOUTHERN CALIFORNIA, CA. (Pain In The Pass) >> This week’s weather forecast for Monday September 23 through Friday September 27 for Southern California. Check out the 5-day forecast below in your area.

Cajon Pass/Inland Empire Valley Area Aveage Weather/Temps:

Monday will be hot, sunny, and a high of 95°. Tuesday will be hot, sunny, and a high of 94°. Wednesday will be hot, mostly sunny with a chance of morning fog, and a high of 91°. Thursday will be hot, mostly sunny with a chance of morning fog, and a high of 90°. Friday will be hot, mostly sunny with a chance of morning fog, and a high of 89°.

High Deserts Area Aveage Weather/Temps:

Monday will be hot, sunny, and a high of 97+°. Tuesday will be hot, sunny windy, and a high of 97+°. Wednesday will be hot, sunny, windy, and a high of 95+°. Thursday will be hot, sunny, and a high of 94+°. Friday will be hot, sunny, and windy, and a high 93+°. Higher temps in the Barstow area.

Mountains Area Aveage Weather/Temps:

Monday will be cool, sunny, windy, and a high of 80°. Tuesday will be warm, sunny, windy, and a high of 80°. Wednesday will be warm, sunny, windy and a high of 78°. Thursday will be warm, sunny, windy, and a high of 77°. Friday will be warm, sunny, windy, and a high of 76°.

*Timing/Weather on each day may change.

There are more ways to follow the Pain In The Pass. Join the Traffic Group on Facebook with over 147,000 members. Join the group on MeWe. Like us on the NEW page on Facebook. Follow us on NewsBreak, and also follow us on Instagram, Threads, and X aka Twitter.

loader-image
Cajon Pass
5:40 am, Apr 21, 2026
temperature icon 43°F
clear sky
Humidity: 56 %
Pressure: 1015 mb
Wind: 9 mph
Wind Gust: 10 mph
Clouds: 3%
Visibility: 10 km
Sunrise: 6:10 am
Sunset: 7:25 pm
  • Temperature
  • Precipitation
  • Rain Chance
  • Wind
  • Humidity
  • Pressure
8:00 am
temperature icon
45°/49°°F 0 mm 0% 11 mph 54% 1016 mb 0 mm/h
11:00 am
temperature icon
54°/60°°F 0 mm 0% 17 mph 39% 1015 mb 0 mm/h
2:00 pm
temperature icon
61°/61°°F 0 mm 0% 22 mph 41% 1014 mb 0 mm/h
5:00 pm
temperature icon
55°/55°°F 0 mm 0% 20 mph 60% 1014 mb 0 mm/h
8:00 pm
temperature icon
49°/49°°F 0.26 mm 26% 15 mph 68% 1015 mb 0 mm/h
11:00 pm
temperature icon
38°/38°°F 0 mm 0% 11 mph 73% 1017 mb 0 mm/h
2:00 am
temperature icon
45°/45°°F 0 mm 0% 11 mph 79% 1017 mb 0 mm/h
5:00 am
temperature icon
43°/43°°F 0 mm 0% 7 mph 82% 1018 mb 0 mm/h