Calm Before The Storm For Southeast and East; A Brief Respite For West

Another large scale low pressure system will impact the Southeast and East, today through at least Saturday; which could disrupt travel. Hazards include heavy to excessive rain with flood concerns, severe t-storms, and perhaps some snow on the backside of the system. Meanwhile, another series of moist Pacific storms will begin to roll into the West Coast and West later today through the weekend. Read More >

Hazardous Weather Conditions

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

A Few Clouds

34°F

1°C

Humidity 50%
Wind Speed W 6 mph
Barometer 30.16 in (1021.3 mb)
Dewpoint 17°F (-8°C)
Visibility 10.00 mi
Wind Chill29°F (-2°C)
Last update 19 Dec 10:56 am EST
Extended Forecast for

Islip, Long Island Mac Arthur Airport NY

  • Today

    Today: Sunny, with a high near 42. Wind chill values between 30 and 35. Southwest wind around 10 mph.

    Sunny

    High: 42 °F

  • Tonight

    Tonight: Mostly clear, with a steady temperature around 34. Southwest wind around 5 mph becoming calm  after midnight.

    Mostly Clear

    Low: 34 °F

  • Thursday

    Thursday: A 30 percent chance of rain, mainly after 4pm.  Increasing clouds, with a high near 51. Calm wind becoming south 5 to 7 mph in the morning.

    Sunny then
    Chance Rain

    High: 51 °F

  • Thursday
    Night

    Thursday Night: Rain, mainly after 7pm. The rain could be heavy at times.  Temperature rising to around 55 by 5am. Breezy, with an east wind 8 to 13 mph increasing to 16 to 21 mph after midnight. Winds could gust as high as 37 mph.  Chance of precipitation is 90%. New precipitation amounts between three quarters and one inch possible.

    Heavy Rain
    and Breezy

    Low: 46 °F

  • Friday

    Friday: Rain and possibly a thunderstorm. Some of the storms could produce gusty winds and heavy rain.  High near 58. Breezy, with a south wind 14 to 23 mph, with gusts as high as 38 mph.  Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

    Heavy Rain
    and Breezy

    High: 58 °F

  • Friday
    Night

    Friday Night: Intermittent showers.  Patchy fog.  Otherwise, mostly cloudy, with a low around 47. Chance of precipitation is 50%.

    Intermittent
    Showers and
    Patchy Fog

    Low: 47 °F

  • Saturday

    Saturday: Partly sunny, with a high near 49. Breezy.

    Partly Sunny
    then Partly
    Sunny and
    Breezy

    High: 49 °F

  • Saturday
    Night

    Saturday Night: Partly cloudy, with a low around 32.

    Partly Cloudy

    Low: 32 °F

  • Sunday

    Sunday: Sunny, with a high near 43.

    Sunny

    High: 43 °F

Detailed Forecast

Today
Sunny, with a high near 42. Wind chill values between 30 and 35. Southwest wind around 10 mph.
Tonight
Mostly clear, with a steady temperature around 34. Southwest wind around 5 mph becoming calm after midnight.
Thursday
A 30 percent chance of rain, mainly after 4pm. Increasing clouds, with a high near 51. Calm wind becoming south 5 to 7 mph in the morning.
Thursday Night
Rain, mainly after 7pm. The rain could be heavy at times. Temperature rising to around 55 by 5am. Breezy, with an east wind 8 to 13 mph increasing to 16 to 21 mph after midnight. Winds could gust as high as 37 mph. Chance of precipitation is 90%. New precipitation amounts between three quarters and one inch possible.
Friday
Rain and possibly a thunderstorm. Some of the storms could produce gusty winds and heavy rain. High near 58. Breezy, with a south wind 14 to 23 mph, with gusts as high as 38 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Friday Night
Intermittent showers. Patchy fog. Otherwise, mostly cloudy, with a low around 47. Chance of precipitation is 50%.
Saturday
Partly sunny, with a high near 49. Breezy.
Saturday Night
Partly cloudy, with a low around 32.
Sunday
Sunny, with a high near 43.
Sunday Night
Partly cloudy, with a low around 32.
Monday
Partly sunny, with a high near 43.
Monday Night
Partly cloudy, with a low around 30.
Christmas Day
Mostly sunny, with a high near 40.
Click Map For Forecast
Point Forecast:
Islip, Long Island Mac Arthur Airport NY
 40.78°N 73.09°W (Elev. 49 ft)
9:26 am EST Dec 19, 2018
11am EST Dec 19, 2018-6pm EST Dec 25, 2018
 
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Additional Resources

Radar & Satellite Image

Northeast Radar Mosaic Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database