Near or record-breaking temperatures (110s) in the inland valleys (Paso Robles) will continue through Tuesday, decreasing to the low 100s on Wednesday through mid-July, while the coastal valleys (San Luis Obispo) will reach the mid to high 80s. The beaches will remain largely overcast and cool on Sunday.

Records are tumbling across the West as a slow-moving heat wave of potentially historic proportions tightens its grip from the Pacific Northwest to Arizona.

Staying out of direct sunlight is absolutely key” a meteorologist warned residents ahead of one of the region’s stronger heat waves in recent memory.