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Heavy snow and hazardous travel for portions of the Great Lakes, Northeast, and New England

Heavy snow, bitterly cold temperatures, and treacherous travel will be likely from the Great Lakes to the Northeast, and into New England over the next couple of days. Heavy Lake Effect snow of one to two feet will impact areas downwind of Lake Eerie and Ontario. Widespread snowfall of 6 to 12 inches will also impact much of northern New England. Read More >

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79° N Lon: 73.1° W Elev: 98 ft.




Humidity 66%
Wind Speed S 12 mph
Barometer 29.54 in (1000.5 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Wind Chill48°F (9°C)
Last update 12 Dec 10:56 am EST
Detailed forecast for

Southwest Suffolk

Cloudy. Rain likely late this morning, then a chance of showers this afternoon. Highs in the lower 50s. Temperature falling into the mid 40s this afternoon. South winds 15 to 20 mph, becoming southwest this afternoon. Gusts up to 30 mph. Chance of rain 70 percent.
A slight chance of rain showers in the evening. Mostly cloudy with a slight chance of snow showers. Breezy with lows in the upper 20s. West winds 15 to 25 mph with gusts up to 40 mph. Chance of precipitation 20 percent.
Partly sunny. A slight chance of snow showers in the morning. Windy and much cooler with highs in the lower 30s. West winds 20 to 30 mph with gusts up to 45 mph. Chance of snow 20 percent.
Wednesday Night
Partly cloudy and blustery. Lows in the lower 20s. West winds 15 to 25 mph. Gusts up to 45 mph, decreasing to 35 mph after midnight.
Mostly cloudy in the morning, then becoming partly sunny. A 20 percent chance of light snow. Highs in the mid 30s. West winds 10 to 15 mph with gusts up to 25 mph.
Thursday Night
Partly cloudy. Lows in the lower 20s.
Mostly cloudy. Highs in the mid 30s.
Friday Night
Mostly cloudy. A chance of snow in the evening. Lows in the mid 20s. Chance of snow 40 percent.
Partly sunny. Highs in the upper 30s.
Saturday Night
Partly cloudy in the evening, then becoming mostly cloudy. Lows around 30.
Partly sunny. Highs in the mid 40s.
Sunday Night
Mostly cloudy. A chance of rain in the evening, then a chance of rain and snow after midnight. Lows in the mid 30s. Chance of precipitation 40 percent.
Partly sunny. A chance of rain and snow in the morning. Highs in the mid 40s. Chance of precipitation 30 percent.

Click Map For Forecast
934 AM EST Tue Dec 12 2017

Additional Resources

Radar & Satellite Image

Northeast Radar Mosaic Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database