Josh Rubenstein's Weather Forecast (May 9)

STUDIO CITY (CBS) — Well, it's a very tricky forecast for downtown Los Angeles because it's all based on the marine layer.

Tuesday we anticipated hitting temperatures in the low 80s, but the inversion was strong enough to keep the low cloud cover in place until the late afternoon. Downtown only reached into the low 70s and beach cities only reached into the 60s. In great contrast, the valleys were into the mid 90s.

This morning, it appears there is a dense fog layer right at the coast stretching just a bit inland. Again, this will keep coastal temperatures on the cooler side.

However, the same atmospheric weather players are in place. We still have an off-shore flow with a warm air mass, so I think with less marine layer, the off-shore flow will be able to kick it out and our downtown temperatures will finally reach into the 80s. Our valleys hit the 90s again.

The off-shore flow relaxes Thursday and the ridge flattens out. These two things will cool off inland areas and bring back a healthy marine layer.  I am still anticipating a warm weekend before a cut off low cools off next week.

Beaches -low 70s
Basin - upper 70s to low 80s
Valleys -  mid 90s
Deserts -mid 90s
Mountains - low 70s