March 10, 2026 12:23 AM

Hot August Nights to Start, then Ends the Month Little Cooler

SOUTHERN CALIFORNIA, CA. (Pain In The Pass) >> This week’s weather forecast for Monday August 25 through Friday August 29 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, mostly sunny with a small chance of thunderstorms, and a high of 98°. Tuesday will be hot, mostly sunny with a small chance of thunderstorms, with a high of 94°. Wednesday will be hot, mostly sunny, and a high of 94°. Thursday will be hot, mostly sunny, and a high of 92°. Friday will be hot, and a high of 91°.

High Deserts Area Average Weather/Temps:

Monday will be hot, mostly sunny with a chance of thunderstorms, windy, and a high of 98+°. Tuesday will be hot, mostly sunny with a chance of thunderstorms, windy, and a high of 95+°. Wednesday will be hot, mostly sunny with a small chance of thunderstorms, windy and a high of 95+°. Thursday will be hot, mostly sunny, windy, and a high of 93+°. Friday will be hot, mostly sunny , windy, and a high 92+°. Higher temps in the Barstow area.

Mountains Area Average Weather/Temps:

Monday will be warm, sunny, windy, and a high of 80°. Tuesday will be warm, sunny, windy, and a high of 78°. Wednesday will be warm, mostly sunny with a small chance of thunderstorms, windy and a high of 78°. Thursday will be warm, mostly sunny with a chance of thunderstorms, windy, and a high of 75°. Friday will be warm, mostly sunny with a chance of thunderstorms, windy, and a high of 74°.

*Timing of the Weather on each day can change.

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Cajon Pass
12:23 am, Mar 10, 2026
temperature icon 49°F
clear sky
Humidity: 78 %
Pressure: 1014 mb
Wind: 12 mph
Wind Gust: 13 mph
Clouds: 0%
Visibility: 10 km
Sunrise: 7:06 am
Sunset: 6:52 pm
  • Temperature
  • Precipitation
  • Rain Chance
  • Wind
  • Humidity
  • Pressure
2:00 am
temperature icon
37°/45°°F 0 mm 0% 5 mph 79% 1014 mb 0 mm/h
5:00 am
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35°/40°°F 0 mm 0% 6 mph 82% 1014 mb 0 mm/h
8:00 am
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38°/38°°F 0 mm 0% 8 mph 82% 1016 mb 0 mm/h
11:00 am
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58°/58°°F 0 mm 0% 5 mph 54% 1017 mb 0 mm/h
2:00 pm
temperature icon
64°/64°°F 0 mm 0% 7 mph 43% 1016 mb 0 mm/h
5:00 pm
temperature icon
60°/60°°F 0 mm 0% 8 mph 44% 1016 mb 0 mm/h
8:00 pm
temperature icon
53°/53°°F 0 mm 0% 5 mph 71% 1019 mb 0 mm/h
11:00 pm
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52°/52°°F 0 mm 0% 3 mph 69% 1021 mb 0 mm/h