Powerful Storm System To Bring A Plethora Of Impacts To The Central And Eastern U.S.

A vigorous storm system will track across the Rockies into the Plains Wednesday into Thursday. Damaging winds will be possible from New Mexico east across portions of western Texas, eastern Colorado, Kansas, and Oklahoma. Widespread rain, locally heavy will spread up the eastern seaboard bringing the threat for flooding, especially over areas that received recent heavy snow. Read More >

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Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Mostly Cloudy

35°F

2°C

Humidity	59%
Wind Speed	W 5 mph
Barometer	30.19 in (1022.5 mb)
Dewpoint	22°F (-6°C)
Visibility	10.00 mi
Wind Chill	31°F (-1°C)
Last update	12 Dec 5:56 pm EST

More Information:

Local Forecast Office More Local Wx 3 Day History Mobile Weather Hourly Weather Forecast

Extended Forecast for

Port Jefferson NY

Tonight

Mostly Cloudy
Low: 27 °F
Thursday

Slight Chance
Snow Showers
then Chance
Rain/Snow
High: 40 °F
Thursday
Night

Mostly Cloudy
Low: 36 °F
Friday

Partly Sunny
then Slight
Chance Rain
High: 48 °F
Friday
Night

Rain
Low: 42 °F
Saturday

Rain
High: 51 °F
Saturday
Night

Chance Rain
then Mostly
Cloudy
Low: 38 °F
Sunday

Partly Sunny
High: 45 °F
Sunday
Night

Mostly Cloudy
Low: 36 °F

Detailed Forecast

Tonight

Mostly cloudy, with a low around 27. Wind chill values between 20 and 25. North wind 9 to 11 mph becoming east after midnight.

Thursday

A slight chance of snow showers before noon, then a chance of rain and snow showers between noon and 1pm, then a chance of rain showers after 1pm. Mostly cloudy, with a high near 40. Wind chill values between 15 and 25. East wind 10 to 13 mph. Chance of precipitation is 40%.

Thursday Night

Mostly cloudy, with a low around 36. Wind chill values between 30 and 35. East wind 9 to 11 mph.

Friday

A 20 percent chance of rain after 3pm. Partly sunny, with a high near 48. Wind chill values between 30 and 40 early. Southeast wind around 9 mph.

Friday Night

Rain, mainly after 9pm. Low around 42. Southeast wind 7 to 9 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

Saturday

Rain. High near 51. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

Saturday Night

A 30 percent chance of rain before midnight. Mostly cloudy, with a low around 38.

Sunday

Partly sunny, with a high near 45.

Sunday Night

Mostly cloudy, with a low around 36.

Monday

Partly sunny, with a high near 45.

Monday Night

Partly cloudy, with a low around 33.