Official Fall, Bringing Chill: Weekend Weather for Tarrytown

TARRYTOWN, NY — Summer gave way to autumn at 10:21 a.m. September 22, but will hang on in the Hudson Valley until Friday night.

"The fall season officially begins on Thursday, but we’ll have to wait about 48 hours for Mother Nature to catch up," said Bill Potter of Hudson Valley Weather. "Some beautiful late summer weather is lined up for the Hudson Valley on Thursday and Friday, with rather comfortable humidity levels… and afternoon highs in the mid 80s on average."

Then things will begin to change. A cold front — accompanied by some isolated showers and thunderstorms — will sweep across the Hudson Valley Friday night and bring much cooler temperatures, with highs only in the 60s during the day, and in the lower 40s both Saturday and Sunday nights.

Here's the National Weather Service forecast for southern Westchester County:

• Today: Sunny, with a high near 82. Southeast wind 3 to 7 mph.
• Tonight: Partly cloudy, with a low around 60. Southeast wind around 5 mph becoming calm in the evening.
• Friday: Mostly sunny, with a high near 83. Calm wind becoming west 5 to 7 mph in the morning.
• Friday Night: Scattered showers and thunderstorms, mainly before 1am. Cloudy, then becoming partly cloudy toward daybreak, with a low around 58. North wind 7 to 10 mph. Chance of precipitation is 30%.
• Saturday: Mostly sunny, with a high near 71. Northwest wind 8 to 11 mph.
• Saturday Night: Mostly clear, with a low around 50.
• Sunday: Sunny, with a high near 68.
• Sunday Night: Mostly clear, with a low around 47.

MAP: AccuWeather.com