A cold front is expected to hit the central San Joaquin Valley today, producing patchy frost and dense fog in some areas in the morning, according to the National Weather Service.
The fog will clear up by 10 a.m. but motorists are asked to drive with caution and use low-beam lights in the fog.
Temperatures in Fresno are expected to hit a high of 54 degrees today and a low of 35, the National Weather Service said. The cold front could produce patchy frost in the rural areas of the Valley, said Modesto Vasquez, a meteorologist at the National Weather Service in Hanford.
On Tuesday, the low is expected at 32 degrees with a high of 52 degrees. Winds of 10 to 15 mph will prevent fog from forming.
By Wednesday, the low is expected at 32 degrees and the high at 50.