Josh Rubenstein's Weather Forecast (June 20)

STUDIO CITY (CBS) — The marine layer is not quite as deep as it has been for the last couple of days.

However, it has still done a good job of penetrating some inland valleys. High pressure will strengthen a bit today, which will help to warm inland areas up just a couple of degrees.

Deserts could surpass 100. The marine layer will still keep temperatures in check at the beach and in the coastal plain.

Nevertheless, today will be the warmest day out of the next five. An upper-level low will move into the West Coast tomorrow and it should be parked for a couple days. The location is just off the Washington coast. This big low will keep us in a general on-shore flow through the weekend, which means temperatures downtown will be running several degrees below average.

The only difficulty with this forecast will be the depth of the marine layer. If a wave of energy runs through the trough, it could break up the marine layer at the coast and warm us up a bit.

Beaches - upper 60s
Basin - mid 70s
Valleys - upper 80s
Deserts - near 100
Mountains - low 80s