Throw a light jacket over the tank top this week.
Summer is not officially over for three weeks, but weather forecasters say a cold front moving through the central San Joaquin Valley dropped temperatures by five to 10 degrees Sunday.
The cooling trend, however, probably won’t last through the Labor Day weekend.
Typically, the Fresno area would be a toasty 95 degrees, but Sunday at midafternoon, it was 87 degrees. Monday will be about 91 degrees, and the night will be 64 degrees. Midweek temperatures should also stay in the high 80s to low 90s. Tuesday could be the warmest, with a high temperature of about 93 degrees.
This week’s cool down is not a sign that autumn has arrived a few weeks early or some indication of an El Niño arrival. “No,” said David Spector, a meteorologist at the National Weather Service in Hanford. Fluctuations in temperatures are “very normal for this time of year.”
So a warming trend in time for Labor Day weekend barbecues fits the pattern.
Next Sunday will be near 97 degrees in Fresno, according to the forecast.
If that’s too warm, the mountains around the central San Joaquin Valley could provide a respite. The temperature at Grant Grove in Kings Canyon National Park, for example, is forecast to be sunny and about 75 degrees.
And for those heading to the Central Coast for the holiday weekend, San Luis Obispo will be sunny and about 83 degrees next Sunday.
Winds on Sunday reached between 10-20 mph and raised some eyebrows about dust storms, a potential hazard of the drought. But the California Highway Patrol had not posted signs warning of blowing dust Sunday morning. “If the wind picks up to a higher degree, that’s a possibility,” officer Scott Jobinger said.
Winds were expected to decrease overnight Sunday and remain light for the next couple of days, Spector said. Tuesday night and Wednesday, however, winds could return and be as high as 20 mph, he said.