Temperatures in the triple-digits and high humidity levels will combine to make Thursday and Friday two of the warmest days of what has already been a sizzling week of heat.
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High pressure continues to build across Southern California, where triple-digit temperatures are likely Thursday in the western San Fernando, Santa Clarita and Ventura County valleys. Overnight lows will only drop into the 70s for those areas, and some foothill locations might see overnight lows in the 80s.
A temperature of 80 degrees was reported at 5:30 a.m. Thursday in Onatrio, where a high of 103 degrees is expected Thursday. Humidity levels inland are expected to decrease during the weekend, but temperatures will remain above normal.
As for the mountains and Coachella Valley, there is a chance of afternoon showers and thunderstorms.
"Where they do pop up, they could be severe enough to cause some flood watches and warnings," said NBC4 forecast Carl Bell.
Thursday's Highs
Downtown LA: 95
Long Beach: 98
Woodland Hills: 104
Pasadena: 102
San Bernardino: 104
Big Bear 78
Apple Valley: 97
Lancaster: 98
Ojai: 104
"The combination of heat and humidity will make it very uncomfortable, even dangerous," said Bell.
The heat wave continues after Wednesday's valleys highs reached 103 in Burbank, Van Nuys and Chatsworth, 101 in Pasadena and 104 in Woodland Hills.
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