Today is the first "official" day of summer, and accordingly, temperatures start rising toward what could be the season's first heat wave next week.

There also is an air-quality alert today, from noon to 10 p.m., as the combination of rising heat and humidity prompted the state to warn of potentially unhealthy ozone levels.

Meanwhile, today's skies will be sunny as temperatures rise to the low-80s, with a south wind 5 to 9 mph, the National Weather Service says.

Tonight will be mostly clear, with the temperature dipping to a low of about 60 degrees and a south wind 5 to 7 mph.

Tomorrow should also be sunny with a high temperature in the low-80s. There will be patchy fog overnight and skies will be partly cloudy, and the temperature registers in the low-60s.

Sunday morning will see patchy fog, which will burn off under sunny skies as the temperature rises to the mid-80s. Nighttime will be cloudy with patchy fog and a low temperature in the upper-60s.

Monday should be mostly sunny, with a high temperature in the upper-80s. Night skies will be partly cloudy, with the low temperature dipping to the upper-60s.

The outlook for Tuesday, according to the weather service, is partly sunny and temperatures rising to about 90 degrees.