Cooldown in the forecast next weekHigh temperatures expected to fall into the low 80s– A cooldown is in the forecast for Paso Robles next week, with high temperatures expected to fall from 90 degrees Monday to 80 degrees Friday. Thursday will be sunny with a high of 92 and a low of 58. Friday will be sunny with a high of 96 and a low of 60. Monday will be mostly sunny with a high of 90 and a low of 57. Click here to view a 10-day forecast for Paso Robles from Weather Underground.