August 19, 2026 8:19 AM

Mild Temps then a Small Warm-Up later in the Week

SOUTHERN CALIFORNIA, CA. (Pain In The Pass) >> This week’s weather forecast for Monday June 23 through Friday June 27 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 warm, mostly sunny with morning fog/clouds, and a high of 84°. Tuesday will be warm, mostly sunny with morning fog/clouds, with a high of 85°. Wednesday will be hot, sunny with a chance of morning fog/clouds, and a high of 92°. Thursday will be hot, sunny, and a high of 93°. Friday will be hot, mostly sunny, and a high of 95°.

High Deserts Area Average Weather/Temps:

Monday will be hot, sunny, windy, and a high of 88+°. Tuesday will be hot, sunny, windy, and a high of 90+°. Wednesday will be hot, sunny, windy and a high of 97+°. Thursday will be hot, sunny, windy, and a high of 100+°. Friday will be hot, mostly sunny, windy, and a high 100+°. Higher temps in the Barstow area.

Mountains Area Average Weather/Temps:

Monday will be warm, sunny, windy, and a high of 71°. Tuesday will be warm, sunny, windy, and a high of 72°. Wednesday will be warm, sunny, windy and a high of 77°. Thursday will be warm, mostly sunny, windy, and a high of 80°. Friday will be cool, mostly sunny, windy, and a high of 81°.

*Timing/Weather on each day may change.

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Cajon Pass
8:19 am, Aug 19, 2026
temperature icon 80°F
few clouds
Humidity: 16 %
Pressure: 1014 mb
Wind: 6 mph
Wind Gust: 8 mph
Clouds: 20%
Visibility: 10 km
Sunrise: 6:13 am
Sunset: 7:32 pm
  • Temperature
  • Precipitation
  • Rain Chance
  • Wind
  • Humidity
  • Pressure
11:00 am
temperature icon
82°/84°°F 0 mm 0% 6 mph 18% 1014 mb 0 mm/h
2:00 pm
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88°/93°°F 0 mm 0% 15 mph 12% 1012 mb 0 mm/h
5:00 pm
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89°/89°°F 0 mm 0% 15 mph 12% 1010 mb 0 mm/h
8:00 pm
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77°/77°°F 0 mm 0% 8 mph 30% 1012 mb 0 mm/h
11:00 pm
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70°/70°°F 0 mm 0% 4 mph 36% 1014 mb 0 mm/h
2:00 am
temperature icon
67°/67°°F 0 mm 0% 3 mph 34% 1014 mb 0 mm/h
5:00 am
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64°/64°°F 0 mm 0% 1 mph 32% 1014 mb 0 mm/h
8:00 am
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73°/73°°F 0 mm 0% 3 mph 19% 1015 mb 0 mm/h