Hi Tony,
Tomorrow is shaping up to be very hot. :P
* Valley Center Fcast Sat, 9:30am = 93 degrees. https://www.wunderground.com/hourly/us/ca/valley-center/date/2024-09-07
* Fallbrook Fcast Sat 10:30am = 94 degrees. https://www.wunderground.com/hourly/us/ca/fallbrook/date/2024-09-07
Be safe,
Daniel
Just in case interested, here's a Coastal Alternative, Starting at Windmill, Palomar A/P Road and I-5: https://ridewithgps.com/routes/48341152