National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Heavy Mountain Snow in the Northwest; Flooding Possible in the South

Heavy mountain snow and high winds have returned to the Northwestern U.S. today into Friday. Total snow accumulations could reach 3 feet in the higher elevations. Several rounds of heavy showers and thunderstorms tracking from the ArkLaTex into the Tennessee Valley may result in localized flash, urban, and small stream flooding into early next week, along with new river flooding. Read More >

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

A Few Clouds

46°F

8°C

Humidity 38%
Wind Speed NW 16 mph
Barometer 30.07 in (1018.4 mb)
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 25 Feb 10:56 am EST
Extended Forecast for

Port Jefferson Station NY

  • Today

    Today: Sunny, with a steady temperature around 43. West wind 13 to 15 mph.

    Sunny

    High: 43 °F

  • Tonight

    Tonight: Mostly clear, with a low around 26. Northwest wind 5 to 11 mph.

    Mostly Clear

    Low: 26 °F

  • Friday

    Friday: Sunny, with a high near 42. Wind chill values between 20 and 30. Northwest wind around 5 mph becoming light and variable.

    Sunny

    High: 42 °F

  • Friday
    Night

    Friday Night: A 40 percent chance of snow, mainly after 3am. Increasing clouds, with a low around 32. Southeast wind around 7 mph.

    Mostly Clear
    then Chance
    Snow

    Low: 32 °F

  • Saturday

    Saturday: Rain and snow likely, becoming all rain after 9am. Cloudy, with a high near 48. Southeast wind 8 to 14 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

    Rain/Snow
    Likely then
    Rain Likely

    High: 48 °F

  • Saturday
    Night

    Saturday Night: A 30 percent chance of rain before midnight. Mostly cloudy, with a low around 37.

    Chance Rain
    then Mostly
    Cloudy

    Low: 37 °F

  • Sunday

    Sunday: A 30 percent chance of rain after noon. Mostly cloudy, with a high near 48.

    Mostly Cloudy
    then Chance
    Rain

    High: 48 °F

  • Sunday
    Night

    Sunday Night: A 40 percent chance of rain before midnight. Cloudy, with a low around 38.

    Chance Rain
    then Cloudy

    Low: 38 °F

  • Monday

    Monday: Mostly cloudy, with a high near 45.

    Mostly Cloudy

    High: 45 °F

Detailed Forecast

Today
Sunny, with a steady temperature around 43. West wind 13 to 15 mph.
Tonight
Mostly clear, with a low around 26. Northwest wind 5 to 11 mph.
Friday
Sunny, with a high near 42. Wind chill values between 20 and 30. Northwest wind around 5 mph becoming light and variable.
Friday Night
A 40 percent chance of snow, mainly after 3am. Increasing clouds, with a low around 32. Southeast wind around 7 mph.
Saturday
Rain and snow likely, becoming all rain after 9am. Cloudy, with a high near 48. Southeast wind 8 to 14 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Saturday Night
A 30 percent chance of rain before midnight. Mostly cloudy, with a low around 37.
Sunday
A 30 percent chance of rain after noon. Mostly cloudy, with a high near 48.
Sunday Night
A 40 percent chance of rain before midnight. Cloudy, with a low around 38.
Monday
Mostly cloudy, with a high near 45.
Monday Night
Partly cloudy, with a low around 27.
Tuesday
Sunny, with a high near 37.
Tuesday Night
Partly cloudy, with a low around 29.
Wednesday
Partly sunny, with a high near 42.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
Port Jefferson Station NY
 40.93°N 73.06°W (Elev. 161 ft)
Last Update:
9:48 am EST Feb 25, 2021
Forecast Valid:
11am EST Feb 25, 2021-6pm EST Mar 3, 2021
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation