Pleasanton and the Tri-Valley are expected to be be increasingly hot with a high temperature of 99 degrees today and 100 on Friday before a "cooling" trend starts on the weekend. Variable winds of 5 to 10 mph are expected for today and tomorrow.
Tonight the Tri-Valley is expected to be mostly clear. Low in the lower 60s and variable winds of 5 to 10 mph are anticipated.
Besides the 100 degree temperature expected Friday, the Tri-Valley will remain sunny, with clear skies continuing into the weekend. Temperatures are expected to drop to 88 degrees Saturday and into the low 80s on Sunday.