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Heavy Snow from the Wasatch to the Upper Midwest through Friday; Severe storms for Ohio Valley on Friday

A strong weather system will bring heavy snow, gusty winds - with blizzard conditions - to a broad area from the Great Basin to the Upper Midwest through Friday creating treacherous travel conditions. Also, strong winds and dry conditions are creating extreme wildfire threats in the southern Plains. Meanwhile, this system will bring a threat of severe thunderstorms to the Ohio Valley on Friday. Read More >

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Fog/Mist

52°F

11°C

Humidity 93%
Wind Speed SW 10 mph
Barometer 29.83 in (1010.3 mb)
Dewpoint 50°F (10°C)
Visibility 5.00 mi
Wind Chill49°F (9°C)
Last update 23 Feb 2:56 pm EST
Extended Forecast for

Stony Brook NY

  • Tonight

    Tonight: Scattered showers between 11pm and 3am, then patchy drizzle with scattered showers after 3am.  Areas of fog after 7pm.  Otherwise, mostly cloudy, with a low around 47. South wind 5 to 8 mph becoming calm  after midnight.  Chance of precipitation is 30%.

    Scattered
    Showers and
    Areas Fog

    Low: 47 °F

  • Friday

    Friday: Patchy drizzle with scattered showers before 11am, then scattered showers between 11am and 4pm, then patchy drizzle with isolated showers after 4pm.  Areas of fog before 2pm.  Otherwise, cloudy, with a high near 56. Calm wind becoming southeast around 6 mph in the afternoon.  Chance of precipitation is 30%.

    Scattered
    Showers and
    Areas Fog

    High: 56 °F

  • Friday
    Night

    Friday Night: Patchy drizzle with a slight chance of rain before 7pm, then a slight chance of rain or drizzle after 7pm.  Cloudy, with a low around 47. South wind around 8 mph.  Chance of precipitation is 20%.

    Patchy
    Drizzle

    Low: 47 °F

  • Saturday

    Saturday: A chance of rain before 2pm, then a chance of rain or drizzle after 2pm.  Mostly cloudy, with a high near 57. Southeast wind 7 to 16 mph.  Chance of precipitation is 50%.

    Chance Rain

    High: 57 °F

  • Saturday
    Night

    Saturday Night: Rain likely and possibly a thunderstorm before 11pm, then a chance of rain.  Cloudy, then gradual clearing toward daybreak, with a low around 39. South wind 13 to 16 mph becoming west after midnight.  Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    Rain Likely

    Low: 39 °F

  • Sunday

    Sunday: Mostly sunny, with a high near 46.

    Mostly Sunny

    High: 46 °F

  • Sunday
    Night

    Sunday Night: Mostly clear, with a low around 31.

    Mostly Clear

    Low: 31 °F

  • Monday

    Monday: Partly sunny, with a high near 44.

    Partly Sunny

    High: 44 °F

  • Monday
    Night

    Monday Night: Mostly cloudy, with a low around 35.

    Mostly Cloudy

    Low: 35 °F

Detailed Forecast

Tonight
Scattered showers between 11pm and 3am, then patchy drizzle with scattered showers after 3am. Areas of fog after 7pm. Otherwise, mostly cloudy, with a low around 47. South wind 5 to 8 mph becoming calm after midnight. Chance of precipitation is 30%.
Friday
Patchy drizzle with scattered showers before 11am, then scattered showers between 11am and 4pm, then patchy drizzle with isolated showers after 4pm. Areas of fog before 2pm. Otherwise, cloudy, with a high near 56. Calm wind becoming southeast around 6 mph in the afternoon. Chance of precipitation is 30%.
Friday Night
Patchy drizzle with a slight chance of rain before 7pm, then a slight chance of rain or drizzle after 7pm. Cloudy, with a low around 47. South wind around 8 mph. Chance of precipitation is 20%.
Saturday
A chance of rain before 2pm, then a chance of rain or drizzle after 2pm. Mostly cloudy, with a high near 57. Southeast wind 7 to 16 mph. Chance of precipitation is 50%.
Saturday Night
Rain likely and possibly a thunderstorm before 11pm, then a chance of rain. Cloudy, then gradual clearing toward daybreak, with a low around 39. South wind 13 to 16 mph becoming west after midnight. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Sunday
Mostly sunny, with a high near 46.
Sunday Night
Mostly clear, with a low around 31.
Monday
Partly sunny, with a high near 44.
Monday Night
Mostly cloudy, with a low around 35.
Tuesday
A 30 percent chance of showers after noon. Partly sunny, with a high near 48.
Tuesday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 39.
Wednesday
A 30 percent chance of rain. Mostly cloudy, with a high near 52.
Wednesday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 44.
Thursday
Click Map For Forecast
Point Forecast:
Stony Brook NY
 40.92°N 73.12°W (Elev. 112 ft)
12:20 pm EST Feb 23, 2017
3pm EST Feb 23, 2017-6pm EST Mar 2, 2017
 
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Additional Resources

Radar & Satellite Image

Northeast Radar Mosaic Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database