June 4, 2026 7:46 PM

Small Cool Down in this Weeks 5 Day Forecast

SOUTHERN CALIFORNIA, CA. (Pain In The Pass) >> This week’s weather forecast for Monday August 11 through Friday August 15 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, sunny, and a high of 98°. Tuesday will be hot, sunny, with a high of 95°. Wednesday will be hot, sunny, and a high of 94°. Thursday will be hot, mostly sunny, and a high of 93°. Friday will be hot, mostly sunny, and a high of 91°.

High Deserts Area Average Weather/Temps:

Monday will be hot, mostly sunny, windy, and a high of 106+°. Tuesday will be hot, sunny, windy, and a high of 104+°. Wednesday will be hot, sunny, windy and a high of 102+°. Thursday will be hot, mostly sunny, windy, and a high of 98+°. Friday will be hot, mostly sunny, windy, and a high 95+°. Higher temps in the Barstow area.

Mountains Area Average Weather/Temps:

Monday will be warm, mostly sunny, windy, and a high of 86°. Tuesday will be warm, sunny, windy, and a high of 85°. Wednesday will be warm, sunny, windy and a high of 84°. Thursday will be warm, mostly sunny, windy, and a high of 82°. Friday will be warm, mostly sunny, windy, and a high of 80°.

*Timing of the Weather on each day can change.

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Cajon Pass
7:46 pm, Jun 4, 2026
temperature icon 79°F
clear sky
Humidity: 27 %
Pressure: 1011 mb
Wind: 12 mph
Wind Gust: 20 mph
Clouds: 0%
Visibility: 10 km
Sunrise: 5:37 am
Sunset: 7:58 pm
  • Temperature
  • Precipitation
  • Rain Chance
  • Wind
  • Humidity
  • Pressure
8:00 pm
temperature icon
63°/79°°F 0 mm 0% 10 mph 27% 1011 mb 0 mm/h
11:00 pm
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58°/72°°F 0 mm 0% 5 mph 34% 1011 mb 0 mm/h
2:00 am
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55°/63°°F 0 mm 0% 4 mph 34% 1011 mb 0 mm/h
5:00 am
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53°/53°°F 0 mm 0% 2 mph 26% 1010 mb 0 mm/h
8:00 am
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64°/64°°F 0 mm 0% 5 mph 15% 1010 mb 0 mm/h
11:00 am
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76°/76°°F 0 mm 0% 12 mph 11% 1009 mb 0 mm/h
2:00 pm
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84°/84°°F 0 mm 0% 18 mph 11% 1008 mb 0 mm/h
5:00 pm
temperature icon
79°/79°°F 0 mm 0% 22 mph 14% 1007 mb 0 mm/h