Fresno’s high of 107 degrees Wednesday continued a new round of triple-digit heat now baking the central San Joaquin Valley.
The day began warm and just got hotter: The overnight low at Fresno Yosemite International Airport – where official readings are taken – was 80 degrees, reached after 5 a.m.
Mugginess made it feel even warmer. Relative humidity Wednesday morning was in the 30 percent range. By midafternoon, it has fallen to near 20 percent. But monsoonal moisture streaming north from the subtropical Pacific brought the chance of thunderstorms to Kern County and the South Valley. Thunderstorms were also expected over the Sierra, and the Central Coast was under a flash-flood watch, the result of thunderstorms.
The forecast shows no major changes. Fresno’s high Thursday is expected to reach 103 degrees. Sunday will be the “coolest” day of the upcoming week, and it is forecast to be 100. Triple digits stay in the forecast through the middle of next week.