March 9, 2026 9:45 PM

Rollcoaster of Weather in this Work Week 5 Day Forecast

SOUTHERN CALIFORNIA, CA. (Pain In The Pass) >> This week’s weather forecast for Monday September 15 through Friday September 19 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 95°. Tuesday will be hot, sunny, with a high of 98°. Wednesday will be hot, mostly sunny, and a high of 96°. Thursday will be hot, partly sunny with a chance of rain showers and thunderstorms, windy, and a high of 94°. Friday will be hot, partly sunny with a chance of rain showers and thunderstorms, windy, and a high of 91°.

High Deserts Area Average Weather/Temps:

Monday will be hot, sunny, windy, and a high of 93+°. Tuesday will be hot, mostly sunny, windy, and a high of 94+°. Wednesday will be hot, mostly sunny with a chance of rain showers and thunderstorms, windy and a high of 95+°. Thursday will be hot, partly sunny with a chance of rain showers and thunderstorms, windy, and a high of 93+°. Friday will be hot, partly sunny with a chance of rain showers and thunderstorms, windy, and a high 90+°. Higher temps in the Barstow area.

Mountains Area Average Weather/Temps:

Monday will be warm, sunny, windy, and a high of 73°. Tuesday will be warm, mostly sunny, windy, and a high of 74°. Wednesday will be warm, mostly sunny with a chance of rain showers and thunderstorms, windy and a high of 73°. Thursday will be warm, partly sunny with a chance of rain showers and thunderstorms, windy, and a high of 70°. Friday will be warm, partly sunny with a chance of rain showers and thunderstorms, windy, and a high of 68°.

*Timing of the Weather on each day can change.

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Cajon Pass
9:45 pm, Mar 9, 2026
temperature icon 53°F
clear sky
Humidity: 63 %
Pressure: 1013 mb
Wind: 12 mph
Wind Gust: 10 mph
Clouds: 0%
Visibility: 10 km
Sunrise: 7:08 am
Sunset: 6:52 pm
  • Temperature
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  • Wind
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11:00 pm
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40°/52°°F 0 mm 0% 6 mph 63% 1014 mb 0 mm/h
2:00 am
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36°/47°°F 0 mm 0% 4 mph 68% 1014 mb 0 mm/h
5:00 am
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35°/41°°F 0 mm 0% 5 mph 74% 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