Notice of NWS' New Version of Forecast
A new version of Forecast is coming soon!
Click here to visit the new site for details.

Risk Severe Thunderstorms for Tennessee & Ohio Valleys on Thursday

Severe weather is expected in the Tennessee and lower Ohio Valleys on Thursday. The greatest risk of severe thunderstorms is forecast across northern Alabama, western Tennessee, and the far southwestern portions of Kentucky. Very large hail, damaging winds, and tornadoes can be expected. Read More >

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Partly Cloudy

47°F

8°C

Humidity 36%
Wind Speed N 6 mph
Barometer 30.21 in (1023.1 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 30 Mar 12:56 pm EDT
Extended Forecast for

Stony Brook NY

  • This
    Afternoon

    This Afternoon: Mostly sunny, with a high near 51. Light east wind.

    Mostly Sunny

    High: 51 °F

  • Tonight

    Tonight: A 40 percent chance of rain after midnight.  Mostly cloudy, with a low around 36. South wind 3 to 5 mph.

    Mostly Cloudy
    then Chance
    Rain

    Low: 36 °F

  • Friday

    Friday: Rain.  Steady temperature around 38. Wind chill values between 30 and 35. Southeast wind 10 to 18 mph, with gusts as high as 29 mph.  Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Rain Likely
    then Rain

    High: 38 °F

  • Friday
    Night

    Friday Night: Rain.  Low around 38. Wind chill values between 30 and 35. Windy, with an east wind 23 to 28 mph, with gusts as high as 38 mph.  Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.

    Rain and
    Windy

    Low: 38 °F

  • Saturday

    Saturday: Rain, mainly before 8am.  High near 46. Breezy, with a north wind 16 to 21 mph.  Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Breezy. Rain
    then Chance
    Rain

    High: 46 °F

  • Saturday
    Night

    Saturday Night: Mostly cloudy, with a low around 34.

    Mostly Cloudy

    Low: 34 °F

  • Sunday

    Sunday: Mostly cloudy, then gradually becoming sunny, with a high near 53.

    Decreasing
    Clouds

    High: 53 °F

  • Sunday
    Night

    Sunday Night: Mostly clear, with a low around 37.

    Mostly Clear

    Low: 37 °F

  • Monday

    Monday: Partly sunny, with a high near 51.

    Partly Sunny

    High: 51 °F

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 51. Light east wind.
Tonight
A 40 percent chance of rain after midnight. Mostly cloudy, with a low around 36. South wind 3 to 5 mph.
Friday
Rain. Steady temperature around 38. Wind chill values between 30 and 35. Southeast wind 10 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Friday Night
Rain. Low around 38. Wind chill values between 30 and 35. Windy, with an east wind 23 to 28 mph, with gusts as high as 38 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.
Saturday
Rain, mainly before 8am. High near 46. Breezy, with a north wind 16 to 21 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday Night
Mostly cloudy, with a low around 34.
Sunday
Mostly cloudy, then gradually becoming sunny, with a high near 53.
Sunday Night
Mostly clear, with a low around 37.
Monday
Partly sunny, with a high near 51.
Monday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 41.
Tuesday
A 50 percent chance of rain. Cloudy, with a high near 55.
Tuesday Night
Partly cloudy, with a low around 40.
Wednesday
Sunny, with a high near 58.
Click Map For Forecast
Point Forecast:
Stony Brook NY
 40.92°N 73.12°W (Elev. 112 ft)
8:52 am EDT Mar 30, 2017
1pm EDT Mar 30, 2017-6pm EDT Apr 5, 2017
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Northeast Radar Mosaic Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database