Mariposa projected high temperature for Monday: 96 degrees, Tuesday: 97 degrees

Oakhurst projected high temperature for Monday: 97 degrees, Tuesday: 98 degrees

Yosemite Valley projected high temperature for Monday: 91 degrees, Tuesday: 91 degrees


August 25, 2019 - The National Weather Service Hanford Office reports temperatures will gradually warm over the next several days.

At this time Tuesday afternoon is expected to be the peak of the heat for this week.

Maximum temperatures the next several days will be several degrees above normal levels for this time of year.

Be sure to take proper precautions in the heat, such as staying hydrated and taking periodic breaks from the heat.

Never leave people or animals in an enclosed vehicle for even short periods as the temperatures inside of the vehicle can reach deadly levels very quickly.

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  Area Forecast Discussion 
  National Weather Service Hanford CA 
  154 PM PDT Sun Aug 25 2019 
   
   
  .SYNOPSIS... 
  Ridge of high pressure remains over Central California today, 
  meaning another day of above normal heat. This warming trend will 
  continue early this week, with Tuesday being the hottest day of  
  the week. Modest cooling trend starting Wednesday due to an upper  
  level trough weakening the ridge over California. Additionally,  
  there is a slight chance of afternoon convection over the Sierra  
  Nevada Tuesday and Wednesday afternoon. 
   
  && 
   
  .DISCUSSION... 
  With the northern stream remaining fairly active across the  
  northern CONUS. Here in our neck of the woods we are quite the 
  opposite. Ridging has continued to build into the region and 
  temperatures are gradually rising in response along with clear to 
  mostly clear conditions. This warming will continue through at 
  least Tuesday when we expect the peak to the warming to take 
  place. The remains of the tropical system Ivo will bring a 
  weakness along the western periphery of the ridging as it moves  
  northward and is pushed inland over northern California. This  
  weakness will allow temperatures to synoptically cool and even  
  bring in some high clouds that will also help to keep temperatures  
  lower for mid to later part of the week. A few showers and even a  
  thunderstorm or two will be possible over the highest parts of the 
  Sierra as the tropical remnants get pushed inland late Tuesday  
  afternoon and into Wednesday afternoon. High pressure then  
  reasserts its dominance back into the region into the weekend once 
  again slightly warming temperatures back up. 
   
  Looking further into the future, there are the makings of a more 
  blocky pattern across the western third of the CONUS. This could 
  considerably slow things down in the atmosphere and push the 
  timing further back on guidance. That also could keep high 
  pressure over the region a bit longer and keep things warm around 
  here well into next week. However, a fairly strong trough progged 
  to move into the Pacific Northwest could break things up. So a 
  little bit of uncertainty in longer term.  
  

Source: NWS