Hot, sunny conditions continued Tuesday across Long Island with the daily high temperature breaking the 90-degree mark, the National Weather Service said.

The thermometer has hit at least 90 in three of the last four days at Long Island MacArthur Airport, with the exception being Monday, which saw a high of 86 degrees, the weather service said.

Heavy afternoon rain touched parts of Nassau and Suffolk counties Monday, pushing out humid conditions. So it was a bit less muggy for most of Tuesday, the service’s Upton office said.

News 12 Long Island meteorologist Matt Hammer said some high, fair-weather clouds will dot the sky Tuesday and that it might be slightly cooler on the East End.

“You’ll still notice the humidity but it will be less noticeable than Monday,” Hammer said. “Not as oppressive.”

Overnight conditions call for clear skies and lows in the upper 60s, Hammer said.

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And then it’s more summer heat.

“Wednesday looks great, too, with highs near 90,” Hammer said. “We’re forecasting a high of 89 for Thursday.”

Hammer said both days look to be mostly dry with a small chance for a late shower on Thursday.

The best chance for wet weather is Friday, when some showers and storms are possible, he said.

That rain is associated with an incoming cold front, expected to pass through the area Thursday night and into Friday, the service said.

The front is likely to bring more rain and “more seasonable temperatures in the lower to mid 80s” through the weekend, Hammer said.