August 25, 2026 6:43 AM

First Small Heat Wave of the Summer Hitting SoCal

SOUTHERN CALIFORNIA, CA. (Pain In The Pass) >> The first heat wave of the summer arrives in Southern California for three days, bringing triple-digit heat to the Inland Empire and the high desert.

Temperatures will rise to the triple-digits when the heat wave peaks on Wednesday, Thursday, and ending Friday.

An area of high pressure will sit right over the region on Wednesday and Thursday, and that sinking air compresses, making temperatures hotter and hotter.

A Heat Advisory has been issued from Wednesday at 10am through Thursday at 8pm in the area the IE and desert.

Relief won’t arrive until Saturday, when temperatures begin to dip back down as the pressure weakens and the sea breeze moves back in heading into the weekend.

If you like the heat, another heat wave in the forecast for next week.

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Cajon Pass
6:43 am, Aug 25, 2026
temperature icon 73°F
broken clouds
Humidity: 27 %
Pressure: 1016 mb
Wind: 2 mph
Wind Gust: 4 mph
Clouds: 65%
Visibility: 10 km
Sunrise: 6:18 am
Sunset: 7:25 pm
  • Temperature
  • Precipitation
  • Rain Chance
  • Wind
  • Humidity
  • Pressure
8:00 am
temperature icon
70°/73°°F 0 mm 0% 2 mph 27% 1016 mb 0 mm/h
11:00 am
temperature icon
78°/88°°F 0 mm 0% 3 mph 26% 1016 mb 0 mm/h
2:00 pm
temperature icon
86°/93°°F 0 mm 0% 6 mph 19% 1014 mb 0 mm/h
5:00 pm
temperature icon
90°/90°°F 0 mm 0% 7 mph 17% 1012 mb 0 mm/h
8:00 pm
temperature icon
79°/79°°F 0 mm 0% 6 mph 34% 1013 mb 0 mm/h
11:00 pm
temperature icon
73°/73°°F 0 mm 0% 2 mph 44% 1015 mb 0 mm/h
2:00 am
temperature icon
72°/72°°F 0 mm 0% 2 mph 38% 1014 mb 0 mm/h
5:00 am
temperature icon
70°/70°°F 0 mm 0% 3 mph 33% 1014 mb 0 mm/h