A high pressure system will bring a cold front to Long Island from southern Canada on Saturday and drop the mercury to the 60s, ending three days of hot temperatures.

Friday hit 89 degrees, breaking the old record of 87 set in 1998 at Long Island MacArthur Airport, according to the weather service.

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The typical daytime temperature at this time of year is about 68 degrees, News 12 Long Island meteorologist Rich Hoffman said.

“Overnight high pressure will be building in bringing cooler air into the region, with lows overnight in the upper 50s, Matthew Tauber, a meteorologist with the National Weather Service at Upton said Friday night.

Saturday should be mostly sunny with a high near 66 with northeast winds of 10 mph, and Sunday should be partly sunny with a high near 64 and light, shifting winds, the weather service said.

With Lisa Irizarry