* Heat Advisory - through 9pm - Heat Index 95 to 104 degrees * Air Quality Alert - through midnight - Poor Air Quality from high levels of ground ozone. Areas of smoke from wildfires.

We're in for another hot summer day across Long Island with plenty of sunshine, although the sky may look a little hazy at times because of some lingering smoke. A Heat Advisory remains in effect, with afternoon temperatures climbing into the 90s and heat index values reaching the upper 90s to near 100 degrees. Take it easy if you're spending time outdoors, stay hydrated, and don't forget the sunscreen since the UV index is running very high. If you're heading to the beach to cool off, be aware of dangerous rip currents and always swim at a beach where lifeguards are on duty.

Tonight will stay warm and muggy with partly cloudy skies and continued hazy conditions. Overnight lows will only fall into the 70s, so it won't offer much relief from the heat. There is also a slight chance of a spotty shower or thunderstorm developing overnight, but most locations will remain dry.

Thursday brings another mostly sunny day with a bit of haze or smoke lingering overhead. High temperatures will be near 90 degrees, but lower humidity will make it feel noticeably more comfortable than today. Sunshine continues into Friday with just a touch of haze possible. Afternoon highs will be in the mid to upper 80s, making for a pleasant midsummer day.

Looking ahead to the weekend, the weather turns a little more unsettled. Saturday will start with a mix of sun and clouds before showers and perhaps a thunderstorm develop during the afternoon. High temperatures will reach the lower 80s. By Sunday, an early morning shower is possible, followed by increasing sunshine during the afternoon as temperatures climb back into the mid-80s, giving us a nice finish to the weekend.