July 21, 2026 12:03 AM

Spring to Winter Rollercoaster in this Weeks 5 Day Forecast

SOUTHERN CALIFORNIA, CA. (Pain In The Pass) >> This week’s weather forecast for Monday April 14 through Friday April 18 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, partly sunny, and a high of 80°. Tuesday will be warm, partly sunny, and a high of 76°. Wednesday will be warm, partly sunny, and a high of 70°. Thursday will be cool, partly sunny, and a high of 65°. Friday will be cool, partly sunny with a chance of thunderstorms/rain showers, and a high of 64°.

High Deserts Area Average Weather/Temps:

Monday will be warm, partly sunny, windy, and a high of 85+°. Tuesday will be warm, partly sunny, windy, and a high of 80+°. Wednesday will be cool, partly sunny, windy and a high of 72+°. Thursday will be cool, partly sunny, windy, and a high of 66+°. Friday will be cool, partly sunny with a chance of thunderstorms/rain showers, and windy, and a high 66+°. Higher temps in the Barstow area.

Mountains Area Average Weather/Temps:

Monday will be cool, partly sunny, wind, and a high of 67°. Tuesday will be cool, partly sunny, windy, and a high of 64°. Wednesday will be cool, partly sunny, windy and a high of 58°. Thursday will be cold, partly sunny, windy, and a high of 50°. Friday will be cold, partly sunny with a chance of thunderstorms/rain/snow showers,, windy, and a high of 45°.

*Timing/Weather on each day may change.

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Cajon Pass
12:03 am, Jul 21, 2026
temperature icon 73°F
scattered clouds
Humidity: 34 %
Pressure: 1014 mb
Wind: 12 mph
Wind Gust: 10 mph
Clouds: 27%
Visibility: 10 km
Sunrise: 5:52 am
Sunset: 7:59 pm
  • Temperature
  • Precipitation
  • Rain Chance
  • Wind
  • Humidity
  • Pressure
2:00 am
temperature icon
66°/70°°F 0.2 mm 20% 5 mph 40% 1014 mb 0 mm/h
5:00 am
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65°/68°°F 0 mm 0% 5 mph 46% 1014 mb 0 mm/h
8:00 am
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69°/69°°F 0 mm 0% 6 mph 36% 1015 mb 0 mm/h
11:00 am
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81°/81°°F 0 mm 0% 9 mph 24% 1014 mb 0 mm/h
2:00 pm
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87°/87°°F 0 mm 0% 10 mph 22% 1013 mb 0 mm/h
5:00 pm
temperature icon
82°/82°°F 0 mm 0% 14 mph 26% 1012 mb 0 mm/h
8:00 pm
temperature icon
72°/72°°F 0 mm 0% 10 mph 43% 1014 mb 0 mm/h
11:00 pm
temperature icon
68°/68°°F 0 mm 0% 8 mph 54% 1016 mb 0 mm/h