July 12, 2026 2:55 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
2:55 am, Jul 12, 2026
temperature icon 72°F
scattered clouds
Humidity: 25 %
Pressure: 1013 mb
Wind: 11 mph
Wind Gust: 4 mph
Clouds: 31%
Visibility: 10 km
Sunrise: 5:46 am
Sunset: 8:03 pm
  • Temperature
  • Precipitation
  • Rain Chance
  • Wind
  • Humidity
  • Pressure
5:00 am
temperature icon
60°/68°°F 0 mm 0% 3 mph 28% 1013 mb 0 mm/h
8:00 am
temperature icon
67°/68°°F 0 mm 0% 3 mph 20% 1014 mb 0 mm/h
11:00 am
temperature icon
80°/80°°F 0 mm 0% 5 mph 13% 1013 mb 0 mm/h
2:00 pm
temperature icon
86°/86°°F 0 mm 0% 14 mph 16% 1012 mb 0 mm/h
5:00 pm
temperature icon
84°/84°°F 0 mm 0% 12 mph 17% 1010 mb 0 mm/h
8:00 pm
temperature icon
72°/72°°F 0 mm 0% 13 mph 35% 1012 mb 0 mm/h
11:00 pm
temperature icon
67°/67°°F 0 mm 0% 5 mph 45% 1014 mb 0 mm/h
2:00 am
temperature icon
66°/66°°F 0 mm 0% 3 mph 42% 1013 mb 0 mm/h