The weather forecast for Friday includes partly sunny skies and...

The weather forecast for Friday includes partly sunny skies and slightly below average temperatures. Credit: Newsday

Friday should be about as fine a summer day as one could hope for: partly sunny skies, with a high of about 78 degrees — slightly below average, according to the National Weather Service.

The weekend looks almost equally pleasant, though on both Saturday and Sunday there is a 20 percent chance of rain or thunderstorms after noon, the weather service said.

"Subtropical high pressure will affect the region from Friday through the weekend keeping conditions mainly dry," the weather service said. It added: "Each afternoon there is a small chance for a brief shower or thunderstorm."

Saturday's high should reach about 81 degrees, Sunday's about 85.

The workweek starts off warmer: mostly sunny skies on Monday will push the high up to 88 degrees, forecasters said.

Tuesday could see afternoon showers, with the thermometer reaching 87 degrees.

The odds of showers rise on Wednesday — reaching 40 percent — with a high of 84 degrees, according to the weather service.

The NewsdayTV team looks at the most wonderful time of the year and the traditions that make it special on LI.  Credit: Newsday

'Tis the season for the NewsdayTV Holiday Show! The NewsdayTV team looks at the most wonderful time of the year and the traditions that make it special on LI.

The NewsdayTV team looks at the most wonderful time of the year and the traditions that make it special on LI.  Credit: Newsday

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