The National Weather Service is predicting cooler weather headed our way and maybe our first rain - and maybe even fog - of the winter.

William Peterson, a meteorologist technician at the National Weather Service in Hanford, said today's high should reach 67 degrees and a cold frontal system will bring clouds and cooler temperatures by Friday. 

With some rain and high pressure, Peterson said Hanford could start to see fog in the mornings by the middle of next week.

Highs for the rest of this week aren’t expected to edge out of the upper 60s in Hanford, and lows are expected to be in the mid-40s. Over the weekend, it’s expected too cool off some more with highs in the lower 60s and lows in the lower 40s.

The skies are expected to cloud up Thursday and Friday, and our best chance of rain is probably Saturday night when the National Weather Service gives it a 40 percent chance.

If you are traveling, be aware that winds with gusts up to 35 mph could cause problems in the Kern County mountains and west of I-5. 

The Sierra is expected to get rain, snow and gusty winds. The rain could cause flash floods and other problems in burn areas of the Detwiler and Pier fires.

The heaviest precipitation will likely be from Yosemite National Park to Kings Canyon. Snow levels start out above 7,500 feet and drop to 6,500 feet by Sunday.

An inch or two of snow is expected up in the lower areas and up to 8 inches above 8,000 feet.

There are no restrictions through the weekend on fireplaces, but burning is discouraged, according to the San Joaquin Valley Air Pollution Control District.