Projected high temperature for Mariposa on Saturday: 96 degrees
Projected high temperature for Oakhurst on Saturday: 98 degrees
Projected high temperature for Yosemite Valley on Saturday: 89 degrees

July 13, 2019 - The National Weather Service Hanford Office reports high temperatures this afternoon in much of the San Joaquin Valley will be near 105 degrees.

Most people have experience with this kind of heat and will instinctively know how to avoid heat-related problems.

Although heat events like this are relatively common, heat-related impacts are possible today for those new to the area if simple precautions are not taken.

Plan to take action to reduce time outdoors, drink plenty of water, and remain in air-conditioned buildings.

Heat-sensitive groups, such as the elderly, young children, and those with chronic ailments may need assistance to avoid heat-related illness.

As always, never, ever leave a child or pet in an enclosed automobile.

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  Area Forecast Discussion 
  National Weather Service Hanford CA 
  217 AM PDT Sat Jul 13 2019 
   
   
  .SYNOPSIS...Today will be a few degrees hotter with widespread 
  triple digit heat across the San Joaquin Valley, lower foothills, 
  and Kern County Desert. A cooling trend will begin Sunday and 
  temperatures by Tuesday will be back down to near normal levels  
  for mid July. Dry weather will continue with mostly clear skies. 
   
  &&  
   
  .DISCUSSION...Satellite imagery shows clear skies across the 
  central California interior this morning as high pressure over 
  the Four Corners region remains in control. Temperatures are 
  running about the same as this time last night. Winds are light 
  across most of the district though some breezy conditions are 
  occurring through the Kern County Mountain passes. 
   
  The Four Corners High will bring further synoptic warming today 
  with widespread triple digit heat across the San Joaquin Valley, 
  the lower foothills, and the Kern County Desert. Maximum temps 
  today will be around 5-10 degrees above climatological normals. 
  Much of the SJV is forecast to top out around 105 degrees this  
  afternoon. This will bring an enhanced heat risk today. Those 
  who are sensitive to heat or new to the area should take extra 
  precautions to stay cool and hydrated. Also, area rivers might 
  seem very inviting to cool off this weekend; but they are very 
  dangerous as the water is cold and swift. 
   
  An upper trough off the Pacific Northwest coast will begin to  
  nudge inland on Sunday. This will start to loosen the grip of the 
  Four Corners High and commence a cooling trend. Temperatures will 
  nudge down a couple degrees on Sunday, meaning triple digits will 
  still be prevalent across the lower elevations. The trough pushes 
  inland on Monday with a few more degrees of cooling & near normal 
  temperatures. A bit more cooling on Tuesday will drop temps to  
  slightly below normal. Models keep the trough over the region  
  through next week with minor fluctuations in temperatures. Winds  
  will increase Monday as the trough pushes inland. Windy conditions 
  will develop in the Kern County Mountains, strongest through and  
  just below the passes into the Desert. Dry weather will persist  
  for at least the next 7 days with mostly clear skies prevailing. 

Source: NWS