May 11, 2026 6:13 PM

Fall like Temps in the 5 Day Forecast

SOUTHERN CALIFORNIA, CA. (Pain In The Pass) >> This week’s weather forecast for Monday September 22 through Friday September 26 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 a chance of rain showers and thunderstorms, and a high of 90°. Tuesday will be hot, partly sunny with a chance of rain showers and thunderstorms, with a high of 94°. Wednesday will be hot, mostly sunny with a chance of rain showers and thunderstorms, and a high of 90°. Thursday will be hot, mostly sunny, and a high of 87°. Friday will be hot, mostly sunny, and a high of 84°.

High Deserts Area Average Weather/Temps:

Monday will be hot, partly sunny with a chance of rain showers and thunderstorms, windy, and a high of 92+°. Tuesday will be hot, partly sunny with a chance of rain showers and thunderstorms, windy, and a high of 90+°. Wednesday will be hot, partly sunny with a chance of rain showers and thunderstorms, windy and a high of 86+°. Thursday will be hot, mostly sunny, windy, and a high of 88+°. Friday will be hot, mostly sunny, windy, and a high 89+°. Higher temps in the Barstow area.

Mountains Area Average Weather/Temps:

Monday will be warm, partly sunny with a chance of rain showers and thunderstorms, windy, and a high of 70°. Tuesday will be warm, partly sunny with a chance of rain showers and thunderstorms, windy, and a high of 74°. Wednesday will be warm, partly sunny with a chance of rain showers and thunderstorms, windy and a high of 73°. Thursday will be warm, mostly sunny, windy, and a high of 70°. Friday will be warm, mostly sunny, windy, and a high of 68°.

*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 163,000 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
6:13 pm, May 11, 2026
temperature icon 85°F
clear sky
Humidity: 10 %
Pressure: 1013 mb
Wind: 16 mph
Wind Gust: 13 mph
Clouds: 5%
Visibility: 10 km
Sunrise: 5:50 am
Sunset: 7:41 pm
  • Temperature
  • Precipitation
  • Rain Chance
  • Wind
  • Humidity
  • Pressure
8:00 pm
temperature icon
62°/78°°F 0 mm 0% 6 mph 15% 1013 mb 0 mm/h
11:00 pm
temperature icon
61°/69°°F 0 mm 0% 1 mph 20% 1014 mb 0 mm/h
2:00 am
temperature icon
56°/56°°F 0 mm 0% 3 mph 21% 1013 mb 0 mm/h
5:00 am
temperature icon
50°/50°°F 0 mm 0% 2 mph 19% 1013 mb 0 mm/h
8:00 am
temperature icon
58°/58°°F 0 mm 0% 3 mph 12% 1013 mb 0 mm/h
11:00 am
temperature icon
63°/63°°F 0 mm 0% 8 mph 15% 1012 mb 0 mm/h
2:00 pm
temperature icon
84°/84°°F 0 mm 0% 17 mph 22% 1011 mb 0 mm/h
5:00 pm
temperature icon
76°/76°°F 0 mm 0% 18 mph 34% 1012 mb 0 mm/h