Northern Tier Snow and Heavy Rain in the South; Blizzard Conditions in Alaska

A storm system originating from the Pacific Northwest will spread snow from the Upper Midwest to the Northeast into Tuesday. Locally heavy rain will be possible Tuesday in the Deep South. In Alaska, a storm will rapidly strengthen over the Bering Sea Monday where it will sweep strong winds and heavy snow across the state through midweek. Localized Blizzard conditions are forecast around Bethel. Read More >

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Overcast

30°F

-1°C

Humidity 88%
Wind Speed Calm
Barometer 30.16 in (1021.3 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Last update 17 Feb 5:56 am EST
Extended Forecast for

Port Jefferson NYSimilar City Names

  • Washington's
    Birthday

    Washington's Birthday: Sunny, with a high near 43. Wind chill values between 30 and 40. Northwest wind 5 to 8 mph.

    Sunny

    High: 43 °F

  • Tonight

    Tonight: Increasing clouds, with a low around 32. Wind chill values between 25 and 30. Northeast wind 6 to 11 mph.

    Increasing
    Clouds

    Low: 32 °F

  • Tuesday

    Tuesday: Rain, mainly after 10am.  High near 47. Wind chill values between 25 and 35 early. East wind 9 to 15 mph becoming south in the afternoon.  Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Rain

    High: 47 °F

  • Tuesday
    Night

    Tuesday Night: Rain likely, mainly before 11pm.  Mostly cloudy, with a low around 36. Southwest wind 9 to 11 mph becoming northwest after midnight.  Chance of precipitation is 60%.

    Rain Likely
    then Slight
    Chance Rain

    Low: 36 °F

  • Wednesday

    Wednesday: Mostly sunny, with a high near 44. Northwest wind 10 to 15 mph.

    Mostly Sunny

    High: 44 °F

  • Wednesday
    Night

    Wednesday Night: Mostly clear, with a low around 25.

    Mostly Clear

    Low: 25 °F

  • Thursday

    Thursday: Mostly sunny, with a high near 32.

    Mostly Sunny

    High: 32 °F

  • Thursday
    Night

    Thursday Night: Partly cloudy, with a low around 17.

    Partly Cloudy

    Low: 17 °F

  • Friday

    Friday: Sunny, with a high near 34.

    Sunny

    High: 34 °F

Detailed Forecast

Washington's Birthday
Sunny, with a high near 43. Wind chill values between 30 and 40. Northwest wind 5 to 8 mph.
Tonight
Increasing clouds, with a low around 32. Wind chill values between 25 and 30. Northeast wind 6 to 11 mph.
Tuesday
Rain, mainly after 10am. High near 47. Wind chill values between 25 and 35 early. East wind 9 to 15 mph becoming south in the afternoon. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday Night
Rain likely, mainly before 11pm. Mostly cloudy, with a low around 36. Southwest wind 9 to 11 mph becoming northwest after midnight. Chance of precipitation is 60%.
Wednesday
Mostly sunny, with a high near 44. Northwest wind 10 to 15 mph.
Wednesday Night
Mostly clear, with a low around 25.
Thursday
Mostly sunny, with a high near 32.
Thursday Night
Partly cloudy, with a low around 17.
Friday
Sunny, with a high near 34.
Friday Night
Clear, with a low around 24.
Saturday
Sunny, with a high near 43.
Saturday Night
Mostly clear, with a low around 32.
Sunday
Sunny, with a high near 46.
Click Map For Forecast
Point Forecast:
Port Jefferson NYSimilar City Names
 40.95°N 73.05°W (Elev. 151 ft)
5:57 am EST Feb 17, 2020
6am EST Feb 17, 2020-6pm EST Feb 23, 2020
 
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Additional Resources

Radar & Satellite Image

Northeast Radar Mosaic Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database