February 21, 2026 6:47 AM

Monday September 16 – Friday September 20 Work Week’s Forecast for SoCal

SOUTHERN CALIFORNIA, CA. (Pain In The Pass) >> This week’s weather forecast for Monday September 16 through Friday September 20 for Southern California. Check out the 5-day forecast below in your area.

Cajon Pass/Inland Empire Valley Area Aveage Weather/Temps:

Monday will be cool, partly sunny with morning fog and a chance of light rain showers, and a high of 72°. Tuesday will be warm, sunny, and a high of 77°. Wednesday will be warm, sunny, and a high of 75°. Thursday will be warm, partly sunny with morning fog and a chance of light rain showers, and a high of 76°. Friday will be warm, mostly sunny, and a high of 85°.

High Deserts Area Aveage Weather/Temps:

Monday will be warm, partly sunny, gusty winds, and a high of 75+°. Tuesday will be warm, sunny windy, and a high of 80+°. Wednesday will be warm, sunny, windy, and a high of 76+°. Thursday will be warm, sunny, gusty winds, and a high of 77+°. Friday will be hot, sunny, and gusty winds, and a high 85+°. Higher temps in the Barstow area.

Mountains Area Aveage Weather/Temps:

Monday will be cool, partly sunny, gusty winds, and a high of 57°. Tuesday will be warm, sunny, windy, and a high of 63°. Wednesday will be warm, sunny, windy and a high of 61°. Thursday will be warm, sunny, gusty winds, and a high of 60°. Friday will be warm, sunny, windy, and a high of 68°.

*Timing/Weather on each day may change.

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Cajon Pass
6:47 am, Feb 21, 2026
temperature icon 30°F
clear sky
Humidity: 63 %
Pressure: 1023 mb
Wind: 5 mph
Wind Gust: 4 mph
Clouds: 2%
Visibility: 10 km
Sunrise: 6:28 am
Sunset: 5:38 pm
  • Temperature
  • Precipitation
  • Rain Chance
  • Wind
  • Humidity
  • Pressure
7:00 am
temperature icon
30°/30°°F 0 mm 0% 5 mph 63% 1023 mb 0 mm/h
10:00 am
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36°/47°°F 0 mm 0% 5 mph 57% 1023 mb 0 mm/h
1:00 pm
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46°/54°°F 0 mm 0% 4 mph 42% 1022 mb 0 mm/h
4:00 pm
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49°/49°°F 0 mm 0% 6 mph 32% 1021 mb 0 mm/h
7:00 pm
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43°/43°°F 0 mm 0% 4 mph 45% 1024 mb 0 mm/h
10:00 pm
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44°/44°°F 0 mm 0% 4 mph 44% 1025 mb 0 mm/h
1:00 am
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42°/42°°F 0 mm 0% 5 mph 44% 1025 mb 0 mm/h
4:00 am
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39°/39°°F 0 mm 0% 5 mph 46% 1026 mb 0 mm/h