Notice of NWS' New Version of Forecast
A new version of Forecast will launch March 7, 2017.
Click here to visit the new site for details.

Active Weather Pattern Continues across the West

Another weather system will spread rain and high elevation mountain snows across the Western states. Warmer temperatures is causing some of the rain to fall as freezing rain and sleet in the Cascades and Columbia Gorge, as well as some interior locations. Heavy mountain snow will be possible from California into the Southern Rockies. Strong winds will accompany this storm. Read More >

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Overcast

38°F

3°C

Humidity 97%
Wind Speed N 6 mph
Barometer 29.99 in (1015.6 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill33°F (1°C)
Last update 18 Jan 9:56 pm EST
Extended Forecast for

Islip NYSimilar City Names

  • Tonight

    Tonight: A 20 percent chance of rain or drizzle before 3am.  Cloudy, with a low around 34. North wind 3 to 7 mph.

    Slight Chance
    Rain

    Low: 34 °F

  • Thursday

    Thursday: Patchy fog before 9am.  Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 51. Northwest wind 5 to 8 mph.

    Patchy Fog
    then Sunny

    High: 51 °F

  • Thursday
    Night

    Thursday Night: Partly cloudy, with a low around 33. North wind around 6 mph.

    Partly Cloudy

    Low: 33 °F

  • Friday

    Friday: A 20 percent chance of rain after 4pm.  Partly sunny, with a high near 44. Wind chill values between 30 and 40. North wind around 5 mph becoming light and variable.

    Partly Sunny
    then Slight
    Chance Rain

    High: 44 °F

  • Friday
    Night

    Friday Night: A 40 percent chance of rain, mainly after 7pm.  Mostly cloudy, with a steady temperature around 40. Light and variable wind.

    Chance Rain

    Low: 40 °F

  • Saturday

    Saturday: Partly sunny, with a high near 50.

    Partly Sunny

    High: 50 °F

  • Saturday
    Night

    Saturday Night: Mostly cloudy, with a low around 39.

    Mostly Cloudy

    Low: 39 °F

  • Sunday

    Sunday: A 40 percent chance of rain after 1pm.  Mostly cloudy, with a high near 45.

    Mostly Cloudy
    then Chance
    Rain

    High: 45 °F

  • Sunday
    Night

    Sunday Night: A 40 percent chance of rain.  Cloudy, with a low around 37.

    Chance Rain

    Low: 37 °F

Detailed Forecast

Tonight
A 20 percent chance of rain or drizzle before 3am. Cloudy, with a low around 34. North wind 3 to 7 mph.
Thursday
Patchy fog before 9am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 51. Northwest wind 5 to 8 mph.
Thursday Night
Partly cloudy, with a low around 33. North wind around 6 mph.
Friday
A 20 percent chance of rain after 4pm. Partly sunny, with a high near 44. Wind chill values between 30 and 40. North wind around 5 mph becoming light and variable.
Friday Night
A 40 percent chance of rain, mainly after 7pm. Mostly cloudy, with a steady temperature around 40. Light and variable wind.
Saturday
Partly sunny, with a high near 50.
Saturday Night
Mostly cloudy, with a low around 39.
Sunday
A 40 percent chance of rain after 1pm. Mostly cloudy, with a high near 45.
Sunday Night
A 40 percent chance of rain. Cloudy, with a low around 37.
Monday
Rain likely. Cloudy, with a high near 46. Breezy. Chance of precipitation is 60%.
Monday Night
Rain likely. Cloudy, with a low around 41. Breezy. Chance of precipitation is 70%.
Tuesday
A 50 percent chance of rain. Mostly cloudy, with a high near 51.
Tuesday Night
Mostly cloudy, with a low around 40.
Wednesday
Mostly sunny, with a high near 50.
Click Map For Forecast
Point Forecast:
Islip NYSimilar City Names
 40.73°N 73.22°W (Elev. 7 ft)
9:19 pm EST Jan 18, 2017
10pm EST Jan 18, 2017-6pm EST Jan 25, 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