The National Weather Service has issued a dense fog advisory for Long Island overnight Tuesday into early Wednesday.
The 9:49 p.m. advisory out of Upton will be in effect from midnight to 6 a.m. and visibility is predicted to be a quarter mile or less during that time.
After the morning fog, Wednesday is forecast to have mostly sunny skies, forecasters say.
Temperatures — falling from the summerlike conditions of Monday — were predicted to warm up to the low 70s, cooler on the East End, the National Weather Service said.
Thursday then sees highs in the upper 60s to around 70 degrees, with chances for showers. That opens the door to a stretch of unsettled conditions, with some of the moisture associated with the remnants of Alberto, the first named storm of the Atlantic hurricane season, which made landfall near Laguna Beach, Florida, Monday.
Friday was looking like it could bring a “little break between two systems” that are coming, said Adrienne Leptich, weather service meteorologist in Upton.
As of the late Tuesday afternoon forecast, Friday was expected to bring cloudy skies, with chances of rain picking up again at night. Temperatures were forecast to head up to the mid-70s, the weather service said.