Heavy rain from the central Gulf Coast to Southeast U.S. this weekend

Heavy rain is expected from eastern Texas across the Lower Miss. Valley to the Southeast U.S. this weekend. This rain could lead to flash flooding. Meanwhile, heavy rain will also spread into the Northwest U.S., with heavy snow in the higher elevations of the Cascades and northern Rockies. Snow and hazardous travel conditions will impact the upper Midwest and parts of the Great Lake States. Read More >

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Partly Cloudy

44°F

7°C

Humidity 45%
Wind Speed N 9 mph
Barometer 30.18 in (1022.1 mb)
Dewpoint 24°F (-4°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 4 Dec 12:56 pm EST
Extended Forecast for

Stony Brook NY

  • This
    Afternoon

    This Afternoon: Sunny, with a high near 45. Northwest wind 9 to 11 mph.

    Sunny

    High: 45 °F

  • Tonight

    Tonight: A chance of rain and snow, mainly after 3am.  Increasing clouds, with a low around 33. Northeast wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 50%.

    Partly Cloudy
    then Chance
    Rain/Snow

    Low: 33 °F

  • Monday

    Monday: Rain and snow likely, becoming all rain after 8am, then gradually ending.  Cloudy, then gradually becoming mostly sunny, with a high near 46. Southeast wind 5 to 10 mph becoming northwest in the afternoon.  Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    Rain/Snow
    Likely then
    Chance Light
    Rain

    High: 46 °F

  • Monday
    Night

    Monday Night: Partly cloudy, with a low around 36. Northwest wind 7 to 9 mph.

    Partly Cloudy

    Low: 36 °F

  • Tuesday

    Tuesday: Partly sunny, with a high near 46. North wind 7 to 13 mph becoming east in the afternoon.

    Partly Sunny

    High: 46 °F

  • Tuesday
    Night

    Tuesday Night: Drizzle or light rain likely, mainly after 8pm.  Cloudy, with a low around 40. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Light Rain
    Likely

    Low: 40 °F

  • Wednesday

    Wednesday: A chance of drizzle or light rain.  Mostly cloudy, with a high near 47. Chance of precipitation is 40%.

    Chance Light
    Rain

    High: 47 °F

  • Wednesday
    Night

    Wednesday Night: A chance of drizzle or light rain.  Mostly cloudy, with a low around 39. Chance of precipitation is 30%.

    Chance Light
    Rain

    Low: 39 °F

  • Thursday

    Thursday: A 50 percent chance of showers.  Mostly cloudy, with a high near 49.

    Chance
    Showers

    High: 49 °F

Detailed Forecast

This Afternoon
Sunny, with a high near 45. Northwest wind 9 to 11 mph.
Tonight
A chance of rain and snow, mainly after 3am. Increasing clouds, with a low around 33. Northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 50%.
Monday
Rain and snow likely, becoming all rain after 8am, then gradually ending. Cloudy, then gradually becoming mostly sunny, with a high near 46. Southeast wind 5 to 10 mph becoming northwest in the afternoon. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Monday Night
Partly cloudy, with a low around 36. Northwest wind 7 to 9 mph.
Tuesday
Partly sunny, with a high near 46. North wind 7 to 13 mph becoming east in the afternoon.
Tuesday Night
Drizzle or light rain likely, mainly after 8pm. Cloudy, with a low around 40. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
A chance of drizzle or light rain. Mostly cloudy, with a high near 47. Chance of precipitation is 40%.
Wednesday Night
A chance of drizzle or light rain. Mostly cloudy, with a low around 39. Chance of precipitation is 30%.
Thursday
A 50 percent chance of showers. Mostly cloudy, with a high near 49.
Thursday Night
A chance of rain showers before midnight, then scattered flurries. Mostly cloudy, with a low around 34. Chance of precipitation is 30%.
Friday
Scattered sprinkles and flurries. Partly sunny, with a high near 42. Breezy.
Friday Night
Partly cloudy, with a low around 29. Breezy.
Saturday
Mostly sunny, with a high near 39. Breezy.
Click Map For Forecast
Point Forecast:
Stony Brook NY
 40.92°N 73.12°W (Elev. 112 ft)
12:45 pm EST Dec 4, 2016
1pm EST Dec 4, 2016-6pm EST Dec 10, 2016
 
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Additional Resources

Radar & Satellite Image

Northeast Radar Mosaic Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database