February 21, 2026 9:22 AM

More Pop-Up Thunderstorms are in Todays Forecast 

HIGH DESERT, CA. (Pain In The Pass) >> There is a risk of pop-up thunderstorms in Sunday afternoon/evening forecast. The monsoon storms are likely to impact parts of the Big Bear area, Wrightwood area, High Desert cities, and Las Vegas/Primm Neveda area today. Monday storms will be stronger than Sunday storms.

Check out the Southern California Weather Force has issued a Servere Weather Statement for Monday forecast. The issued zones is for the High and Low Desert, San Bernardino, Riverside Mountains and the Inland Empire cities.

A localized flash flood risk will develop as storms increase in intensity and coverage throughout the afternoon across the area above.

Make sure you are weather aware and don’t forget that upstream heavy rain can lead to flooding downstream without any rain falling at your location.

Storms could also produce dangerous lightning and outflow-driven dust storms. Another concern is the potential for dry lightning sparking fires in some locations.

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

“When Thunder Roars, Go Indoors” If you travel through the Cajon Pass or on Interstate 15, I-40, expect traffic due to the weather condition that can change quickly. Remember to SLOW DOWN in the rain and or blowing dust.

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Cajon Pass
9:22 am, Feb 21, 2026
temperature icon 42°F
clear sky
Humidity: 43 %
Pressure: 1022 mb
Wind: 11 mph
Wind Gust: 7 mph
Clouds: 3%
Visibility: 10 km
Sunrise: 6:28 am
Sunset: 5:38 pm
  • Temperature
  • Precipitation
  • Rain Chance
  • Wind
  • Humidity
  • Pressure
10:00 am
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42°/44°°F 0 mm 0% 5 mph 44% 1023 mb 0 mm/h
1:00 pm
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46°/54°°F 0 mm 0% 4 mph 43% 1023 mb 0 mm/h
4:00 pm
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47°/49°°F 0 mm 0% 6 mph 36% 1022 mb 0 mm/h
7:00 pm
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43°/43°°F 0 mm 0% 4 mph 45% 1024 mb 0 mm/h
10:00 pm
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44°/44°°F 0 mm 0% 4 mph 44% 1025 mb 0 mm/h
1:00 am
temperature icon
42°/42°°F 0 mm 0% 5 mph 44% 1025 mb 0 mm/h
4:00 am
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39°/39°°F 0 mm 0% 5 mph 46% 1026 mb 0 mm/h
7:00 am
temperature icon
41°/41°°F 0 mm 0% 6 mph 45% 1026 mb 0 mm/h