South Floridians can expect a crisp, cool start to December with another dip into cooler temperatures and near-zero chances of rain. Temperatures aren’t likely to budge past the upper 60s and low-70s across South Florida this week as the region feels the effects of cold, dry air from the northern United States, according to the National Weather Service Miami. Overnight lows will hover around the 50s in Palm Beach, Broward and Miami-Dade counties, with lows in the 40s and even 30s near Lake Okeechobee. “Coupled with the breezy conditions, it’ll feel like the 60s across pretty much all of South Florida on Tuesday,” the National Weather Service in Miami wrote in a forecast discussion on Monday morning. 12/2: Breezy northerly winds will result in wind chill values tonight several degrees below actual forecast low temperatures. How low?