Forecast: System exits as heat is set to return

THURSDAY: Fog and low clouds return for the early commute and 50s. We'll see plenty of afternoon sunshine away from the coast and 70s to low 80s inland, 60s to 70s bay and 50s to 60s coast. Moret on what's causing a surge in temperatures by this weekend and how much hotter in your full Microclimate Forecast VIDEO. Chief Meteorologist Jeff Ranieri