July 15, 2026 3:24 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
3:24 am, Jul 15, 2026
temperature icon 72°F
clear sky
Humidity: 46 %
Pressure: 1013 mb
Wind: 6 mph
Wind Gust: 6 mph
Clouds: 0%
Visibility: 10 km
Sunrise: 5:48 am
Sunset: 8:02 pm
  • Temperature
  • Precipitation
  • Rain Chance
  • Wind
  • Humidity
  • Pressure
5:00 am
temperature icon
62°/69°°F 0 mm 0% 2 mph 47% 1013 mb 0 mm/h
8:00 am
temperature icon
71°/71°°F 0 mm 0% 3 mph 37% 1013 mb 0 mm/h
11:00 am
temperature icon
84°/84°°F 0 mm 0% 1 mph 20% 1012 mb 0 mm/h
2:00 pm
temperature icon
90°/90°°F 0 mm 0% 12 mph 18% 1010 mb 0 mm/h
5:00 pm
temperature icon
86°/86°°F 0 mm 0% 13 mph 19% 1008 mb 0 mm/h
8:00 pm
temperature icon
74°/74°°F 0 mm 0% 6 mph 31% 1010 mb 0 mm/h
11:00 pm
temperature icon
69°/69°°F 0 mm 0% 5 mph 38% 1011 mb 0 mm/h
2:00 am
temperature icon
67°/67°°F 0 mm 0% 3 mph 36% 1010 mb 0 mm/h