May 3, 2026 5:27 AM

Pop-Up Thunderstorms are in the Forecast

HIGH DESERT, CA. (Pain In The Pass) >> The Southern California Weather Force Forecast calls for mostly sunny skies for Wednesday with a 20% chance of scattered afternoon and evening showers and thunderstorms. The high will be mid 100s to 110+ degrees. 

A promising weather pattern change begins on Friday with temperatures will feel more normal across Southern California before another warming trend..

Today thunderstorms will be high-based and can produce little to a lot of precipitation at times, especially considering the faster movement of storm activity. Each thunderstorm cell will also be capable of producing gusty, erratic outflow winds, gusting upwards of 45 to 60+ mph in region.

The heaviest downpours can have the potential to bring a quick 1-2 inches of rain. The risk for localized flash flooding is low, but cannot be ruled out because the ground is dry and the burn scars areas.

“When Thunder Roars, Go Indoors”

If you travel through the Cajon Pass or on Interstate 15 expect traffic due to the weather condition can change quickly. Remember to SLOW DOWN in the rain and or blowing dust.

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Cajon Pass
5:27 am, May 3, 2026
temperature icon 54°F
overcast clouds
Humidity: 79 %
Pressure: 1012 mb
Wind: 10 mph
Wind Gust: 10 mph
Clouds: 91%
Visibility: 10 km
Sunrise: 5:57 am
Sunset: 7:35 pm
  • Temperature
  • Precipitation
  • Rain Chance
  • Wind
  • Humidity
  • Pressure
8:00 am
temperature icon
51°/53°°F 0 mm 0% 6 mph 75% 1012 mb 0 mm/h
11:00 am
temperature icon
58°/59°°F 0 mm 0% 18 mph 50% 1011 mb 0 mm/h
2:00 pm
temperature icon
62°/62°°F 0 mm 0% 22 mph 34% 1009 mb 0 mm/h
5:00 pm
temperature icon
59°/59°°F 0 mm 0% 20 mph 37% 1008 mb 0 mm/h
8:00 pm
temperature icon
49°/49°°F 0 mm 0% 15 mph 67% 1011 mb 0 mm/h
11:00 pm
temperature icon
43°/43°°F 0 mm 0% 14 mph 78% 1012 mb 0 mm/h
2:00 am
temperature icon
46°/46°°F 0 mm 0% 13 mph 80% 1013 mb 0 mm/h
5:00 am
temperature icon
45°/45°°F 0 mm 0% 12 mph 84% 1013 mb 0 mm/h