Land surface temperatures in the Snake River Plain reaches 150ºF based on satellite measurements

This was the temperature of the ground surface, on June 28, 2015. Not the air temperature.

From US National Weather Service Boise Idaho Facebook

https://www.facebook.com/NWSBoise/photos/a.220225831328915.62894.205950409423124/1067070226644467/?type=1&fref=nf