November 1, 2026 8:23 AM

Hot August Nights to Start, then Ends the Month Little Cooler

SOUTHERN CALIFORNIA, CA. (Pain In The Pass) >> This week’s weather forecast for Monday August 25 through Friday August 29 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, mostly sunny with a small chance of thunderstorms, and a high of 98°. Tuesday will be hot, mostly sunny with a small chance of thunderstorms, with a high of 94°. Wednesday will be hot, mostly sunny, and a high of 94°. Thursday will be hot, mostly sunny, and a high of 92°. Friday will be hot, and a high of 91°.

High Deserts Area Average Weather/Temps:

Monday will be hot, mostly sunny with a chance of thunderstorms, windy, and a high of 98+°. Tuesday will be hot, mostly sunny with a chance of thunderstorms, windy, and a high of 95+°. Wednesday will be hot, mostly sunny with a small chance of thunderstorms, windy and a high of 95+°. Thursday will be hot, mostly sunny, windy, and a high of 93+°. Friday will be hot, mostly sunny , windy, and a high 92+°. Higher temps in the Barstow area.

Mountains Area Average Weather/Temps:

Monday will be warm, sunny, windy, and a high of 80°. Tuesday will be warm, sunny, windy, and a high of 78°. Wednesday will be warm, mostly sunny with a small chance of thunderstorms, windy and a high of 78°. Thursday will be warm, mostly sunny with a chance of thunderstorms, windy, and a high of 75°. Friday will be warm, mostly sunny with a chance of thunderstorms, windy, and a high of 74°.

*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 162,000 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
8:23 am, Nov 1, 2026
temperature icon 52°F
broken clouds
Humidity: 93 %
Pressure: 1010 mb
Wind: 12 mph
Wind Gust: 8 mph
Clouds: 83%
Visibility: 10 km
Sunrise: 6:09 am
Sunset: 4:56 pm
  • Temperature
  • Precipitation
  • Rain Chance
  • Wind
  • Humidity
  • Pressure
10:00 am
temperature icon
52°/52°°F 0.71 mm 71% 2 mph 89% 1009 mb 0 mm/h
1:00 pm
temperature icon
53°/53°°F 0.23 mm 23% 3 mph 72% 1008 mb 0 mm/h
4:00 pm
temperature icon
53°/53°°F 0 mm 0% 3 mph 54% 1010 mb 0 mm/h
7:00 pm
temperature icon
48°/48°°F 0.2 mm 20% 5 mph 74% 1014 mb 0 mm/h
10:00 pm
temperature icon
46°/46°°F 0 mm 0% 2 mph 78% 1017 mb 0 mm/h
1:00 am
temperature icon
44°/44°°F 0 mm 0% 2 mph 65% 1019 mb 0 mm/h
4:00 am
temperature icon
42°/42°°F 0 mm 0% 1 mph 59% 1019 mb 0 mm/h
7:00 am
temperature icon
45°/45°°F 0 mm 0% 2 mph 57% 1021 mb 0 mm/h