April 21, 2026 2:40 AM

Heat Advisory for Thursday and Friday

SOUTHERN CALIFORNIA, CA. (Pain In The Pass) >> Heat Advisory for all of the Inland Empire cities and the whole high desert areas starting on Thursday and on Friday.

The Advisory will be in effect from 10am on Thursday March 12, 2026, to 8pm on Friday. Temperatures are expected to reach 93–98 degrees.

Hot conditions may cause heat-related illnesses, and very warm temperatures are expected to continue into the weekend into next week. There is a chance of the weather pattern to change back to rainy cold weather at the end of the month.

Heat Health Safety Tips:

Stay hydrated! The more hydrated you are, the more effective your body will be keeping your cool. Drink water – not soda, energy drinks, and alcoholic drinks, which will dehydrate you.

Avoid exercise in the middle of the day. If you need to exercise outside, do it early in the morning when the temperature is lower.

Wear lightweight, light-colored natural fabrics like cotton and linen, as these will help your skin breathe and let your sweat evaporate, this will keep you cooler.

Turn off big appliances and help prevent brown-outs!

Make sure your pets have shade and lots of water.

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Cajon Pass
2:40 am, Apr 21, 2026
temperature icon 45°F
broken clouds
Humidity: 62 %
Pressure: 1015 mb
Wind: 9 mph
Wind Gust: 11 mph
Clouds: 53%
Visibility: 10 km
Sunrise: 6:10 am
Sunset: 7:25 pm
  • Temperature
  • Precipitation
  • Rain Chance
  • Wind
  • Humidity
  • Pressure
5:00 am
temperature icon
44°/44°°F 0 mm 0% 8 mph 59% 1016 mb 0 mm/h
8:00 am
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49°/51°°F 0 mm 0% 11 mph 43% 1015 mb 0 mm/h
11:00 am
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60°/60°°F 0 mm 0% 16 mph 29% 1015 mb 0 mm/h
2:00 pm
temperature icon
62°/62°°F 0 mm 0% 21 mph 40% 1014 mb 0 mm/h
5:00 pm
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55°/55°°F 0 mm 0% 17 mph 71% 1014 mb 0 mm/h
8:00 pm
temperature icon
51°/51°°F 0.36 mm 36% 15 mph 74% 1015 mb 0 mm/h
11:00 pm
temperature icon
46°/46°°F 0.06 mm 6% 11 mph 75% 1017 mb 0 mm/h
2:00 am
temperature icon
45°/45°°F 0 mm 0% 11 mph 81% 1017 mb 0 mm/h