October 4, 2026 3:25 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.

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Cajon Pass
3:25 pm, Oct 4, 2026
temperature icon 89°F
clear sky
Humidity: 21 %
Pressure: 1012 mb
Wind: 5 mph
Wind Gust: 9 mph
Clouds: 0%
Visibility: 10 km
Sunrise: 6:46 am
Sunset: 6:29 pm
  • Temperature
  • Precipitation
  • Rain Chance
  • Wind
  • Humidity
  • Pressure
5:00 pm
temperature icon
87°/88°°F 0 mm 0% 14 mph 22% 1013 mb 0 mm/h
8:00 pm
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76°/80°°F 0 mm 0% 3 mph 23% 1014 mb 0 mm/h
11:00 pm
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69°/69°°F 0 mm 0% 5 mph 34% 1016 mb 0 mm/h
2:00 am
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67°/67°°F 0 mm 0% 2 mph 38% 1016 mb 0 mm/h
5:00 am
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64°/64°°F 0 mm 0% 1 mph 38% 1016 mb 0 mm/h
8:00 am
temperature icon
73°/73°°F 0 mm 0% 1 mph 35% 1017 mb 0 mm/h
11:00 am
temperature icon
85°/85°°F 0 mm 0% 5 mph 23% 1017 mb 0 mm/h
2:00 pm
temperature icon
89°/89°°F 0 mm 0% 9 mph 19% 1014 mb 0 mm/h