Blame Fausto and Genevieve for Humidity

The weather will feel hotter than it actually is today and through the weekend because of the high humidity spinning off two tropical storms, according to the National Weather Service in San Diego.

By late Wednesday, Hurricane Fausto had broken down into a tropical depression as it headed toward Hawaii, but not before throwing a muggy blanket of air over San Diego, forecaster Wilbur Shigehara said.

Tropical storm Genevieve, expected to become a hurricane by Saturday as it nears the tip of Baja California, is coming up on the heels of Fausto, Shigehara said.

“We have to keep an eye on Genevieve for an additional source of moisture,” he said.

No records were broken Wednesday. At Lindbergh Field, the mercury rose to 85, several degrees below the record of 89 set in 1959, Shigehara said. But the temperature felt like it was closer to 90 because of the 56% humidity.

Temperatures, normally 75 during the day and 65 at night, are running about 10 degrees above the daytime norm and 5 degrees above the nighttime norm for this time of year, Shigehara said. “We’re running into nights that may be very uncomfortable, warm and muggy,” he said.

Throughout the county, temperatures rose into the 80s and 90s on Wednesday. Campo recorded a 99; Chula Vista, 82; Del Mar, 81; El Cajon, 95; Escondido, 95; La Mesa, 91; Miramar, 95; National City, 88, and Poway, 95.

“San Diego will continue to be quite hot and humid through Friday and the weekend,” Shigehara said.

The heat and moisture from the seasonal, tropical storms from Mexico are expected to set off thunderstorms in the mountains and deserts. Localized heavy rains, wind gusts of up to 30 m.p.h. and flash flooding are possible. With the winds blowing westerly, the inland valleys could pick up some of the rain today, Shigehara said.

Beach areas can expect highs of 75 to 80 today and Friday. Coastal-area temperatures will range from 80 to 90, with lows of 65 to 73. Inland highs will range from 90 to 100, dipping to 60 to 68 at night.

Mountain areas will see temperatures of 80 to 88, with lows of 55 to 63. Desert highs will be moderated by a cloud cover and will hover between 105 and 113, with lows of 77 to 85.