North Pole Air To Freeze Long Island; Snow Possible

Monday will be a gorgeous fall day on Long Island with a high near 60 degrees. But don't get used to it. Frigid air from very close to the North Pole will send temperatures to well below freezing Tuesday night, the National Weather Service says. The expected wind chill temperature at 6 a.m. Wednesday: 5 degrees.

Both highs and lows will be around 20 degrees below normal with the possibility that temperatures do not get above freezing Wednesday afternoon, the National Weather Service says.

We may also see our first snowflakes of the season Tuesday. Precipitation will begin as rain Tuesday morning, but it could mix with or change to snow for a few hours during the afternoon.

Little to no snow accumulation is expected.

The full forecast:

Sunday Night- Mostly cloudy, with a low around 40. West wind around 6 mph becoming calm after midnight.

Monday- Mostly sunny, with a high near 59. Calm wind becoming south 5 to 7 mph in the morning.

Monday Night- A 30 percent chance of rain, mainly after 5am. Partly cloudy, with a low around 42. Southwest wind 6 to 9 mph.

Tuesday- Rain before 2pm, then a chance of rain and snow showers between 2pm and 4pm, then a slight chance of snow showers after 4pm. Temperature falling to around 34 by 5pm. Wind chill values between 20 and 30. Breezy, with a southwest wind 11 to 21 mph becoming northwest in the morning. Winds could gust as high as 31 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

Tuesday Night- Partly cloudy, with a low around 20. Blustery, with a northwest wind 17 to 21 mph.

Wednesday- Sunny, with a high near 33.

Wednesday Night- Mostly clear, with a low around 23.

Thursday- Partly sunny, with a high near 44.

Thursday Night- Mostly cloudy, with a low around 33.

Friday- Mostly sunny, with a high near 49.

Friday Night- Mostly clear, with a low around 28.