March 9, 2026 8:26 PM

A Drop then a Gradual Warmup in the 5 Day Forecast

SOUTHERN CALIFORNIA, CA. (Pain In The Pass) >> This week’s weather forecast for Monday May 12 through Friday May 16 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 cloudy, and a high of 78°. Tuesday will be cool, partly cloudy with morning fog and a chance of light rain showers, with a high of 70°. Wednesday will be warm, mostly sunny, and a high of 76°. Thursday will be warm, mostly sunny, and a high of 78°. Friday will be warm, mostly sunny, and a high of 77°.

High Deserts Area Average Weather/Temps:

Monday will be warm, sunny, gusty winds, and a high of 77+°. Tuesday will be cool, sunny, gusty winds, and a high of 67+°. Wednesday will be warm, sunny, windy and a high of 75+°. Thursday will be warm, mostly sunny, windy, and a high of 82+°. Friday will be warm, mostly sunny, windy, and a high 83+°. Higher temps in the Barstow area.

Mountains Area Average Weather/Temps:

Monday will be cool, sunny, gusty winds, and a high of 61°. Tuesday will be cold, sunny, gusty winds, and a high of 51°. Wednesday will be cold, sunny, windy and a high of 59°. Thursday will be cool, mostly sunny, windy, and a high of 63°. Friday will be cold, mostly sunny, windy, and a high of 65°.

*Timing/Weather on each day may change.

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Cajon Pass
8:26 pm, Mar 9, 2026
temperature icon 55°F
clear sky
Humidity: 50 %
Pressure: 1012 mb
Wind: 10 mph
Wind Gust: 10 mph
Clouds: 0%
Visibility: 10 km
Sunrise: 7:08 am
Sunset: 6:52 pm
  • Temperature
  • Precipitation
  • Rain Chance
  • Wind
  • Humidity
  • Pressure
11:00 pm
temperature icon
40°/50°°F 0 mm 0% 6 mph 59% 1013 mb 0 mm/h
2:00 am
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36°/43°°F 0 mm 0% 4 mph 68% 1013 mb 0 mm/h
5:00 am
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35°/35°°F 0 mm 0% 5 mph 79% 1014 mb 0 mm/h
8:00 am
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38°/38°°F 0 mm 0% 6 mph 78% 1016 mb 0 mm/h
11:00 am
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59°/59°°F 0 mm 0% 5 mph 47% 1017 mb 0 mm/h
2:00 pm
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64°/64°°F 0 mm 0% 8 mph 40% 1015 mb 0 mm/h
5:00 pm
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63°/63°°F 0 mm 0% 7 mph 43% 1016 mb 0 mm/h
8:00 pm
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53°/53°°F 0 mm 0% 5 mph 70% 1019 mb 0 mm/h