April 21, 2026 7:16 AM

Cold Weather in the First Week of the Year

SOUTHERN CALIFORNIA, CA. (Pain In The Pass) >> This week’s weather forecast for Monday January 5 through Friday January 9 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 cold, partly cloudy with rain showers in the morning, and a high of 61°. Tuesday will be warm, mostly cloudy with rain showers, with a high of 63°. Wednesday will be cold, mostly sunny, and a high of 65°. Thursday will be cold, partly sunny, and a high of 66°. Friday will be cold, mostly sunny, and a high of 67°.

High Deserts Area Average Weather/Temps:

Monday will be cool, partly sunny with morning rain showers, windy, and a high of 56+°. Tuesday will be cold, partly cloudy, windy, and a high of 55+°. Wednesday will be cold, mostly cloudy, windy and a high of 57+°. Thursday will be cold, mostly sunny, gusty winds, and a high of 55+°. Friday will be cold, mostly sunny, gusty winds, and a high 56+°. Higher temps in the Barstow area.

Mountains Area Average Weather/Temps:

Monday will be cold, partly sunny with morning rain/snow showers, gusty winds, and a high of 42°. Tuesday will be cold, partly sunny with a chance of rain/snow showers, windy, and a high of 44°. Wednesday will be cold, partly sunny, gusty winds and a high of 45°. Thursday will be cold, mostly sunny, windy, and a high of 46°. Friday will be cold, mostly sunny, windy, and a high of 45°.

*Timing of the Weather on each day can change.

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Cajon Pass
7:16 am, Apr 21, 2026
temperature icon 44°F
scattered clouds
Humidity: 56 %
Pressure: 1016 mb
Wind: 9 mph
Wind Gust: 12 mph
Clouds: 25%
Visibility: 10 km
Sunrise: 6:10 am
Sunset: 7:25 pm
  • Temperature
  • Precipitation
  • Rain Chance
  • Wind
  • Humidity
  • Pressure
8:00 am
temperature icon
48°/48°°F 0 mm 0% 11 mph 46% 1015 mb 0 mm/h
11:00 am
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51°/58°°F 0 mm 0% 17 mph 41% 1015 mb 0 mm/h
2:00 pm
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57°/61°°F 0 mm 0% 22 mph 42% 1014 mb 0 mm/h
5:00 pm
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55°/55°°F 0 mm 0% 20 mph 60% 1014 mb 0 mm/h
8:00 pm
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49°/49°°F 0.26 mm 26% 15 mph 68% 1015 mb 0 mm/h
11:00 pm
temperature icon
38°/38°°F 0 mm 0% 11 mph 73% 1017 mb 0 mm/h
2:00 am
temperature icon
45°/45°°F 0 mm 0% 11 mph 79% 1017 mb 0 mm/h
5:00 am
temperature icon
43°/43°°F 0 mm 0% 7 mph 82% 1018 mb 0 mm/h