Notice of NWS' New Version of Forecast
A new version of Forecast will launch April 4, 2017.
Click here to visit the new site for details.

Severe Thunderstorm Threat Increasing This Week from the High Plains to Gulf Coast

A storm system will move from the Rockies to the East Coast during the next several days bringing a severe thunderstorm threat to many parts of the nation. On Thursday, large hail will be the main threat in the High Plains. By Friday a more widespread threat will develop in the ArkLaTex region where damaging winds, very large hail and tornadoes will be possible. Read More >

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Fair

22°F

-6°C

Humidity 44%
Wind Speed NW 13 G 22 mph
Barometer 30.47 in (1032.0 mb)
Dewpoint 3°F (-16°C)
Visibility 10.00 mi
Wind Chill10°F (-12°C)
Last update 23 Mar 4:56 am EDT
Extended Forecast for

Islip NYSimilar City Names

  • Today

    Today: Sunny, with a high near 39. Wind chill values between 10 and 20. Northwest wind 11 to 13 mph.

    Sunny

    High: 39 °F

  • Tonight

    Tonight: Partly cloudy, with a low around 28. West wind 5 to 7 mph becoming calm  in the evening.

    Partly Cloudy

    Low: 28 °F

  • Friday

    Friday: A 30 percent chance of rain, mainly between 11am and 3pm.  Mostly cloudy, with a high near 44. Wind chill values between 25 and 35. Southwest wind 7 to 17 mph, with gusts as high as 30 mph.

    Chance Rain

    High: 44 °F

  • Friday
    Night

    Friday Night: Mostly cloudy, with a temperature rising to around 45 by 5am. Southwest wind 10 to 14 mph.

    Mostly Cloudy

    Low: 42 °F

  • Saturday

    Saturday: A 40 percent chance of light rain, mainly after noon.  Mostly cloudy, with a high near 56. Southwest wind 6 to 8 mph.

    Chance Light
    Rain

    High: 56 °F

  • Saturday
    Night

    Saturday Night: Rain likely.  Cloudy, with a low around 41. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Rain Likely

    Low: 41 °F

  • Sunday

    Sunday: Rain likely.  Cloudy, with a high near 44. Chance of precipitation is 60%.

    Rain Likely

    High: 44 °F

  • Sunday
    Night

    Sunday Night: Rain likely.  Cloudy, with a low around 40. Chance of precipitation is 70%.

    Rain Likely

    Low: 40 °F

  • Monday

    Monday: Rain likely.  Cloudy, with a high near 51. Chance of precipitation is 60%.

    Rain Likely

    High: 51 °F

Detailed Forecast

Today
Sunny, with a high near 39. Wind chill values between 10 and 20. Northwest wind 11 to 13 mph.
Tonight
Partly cloudy, with a low around 28. West wind 5 to 7 mph becoming calm in the evening.
Friday
A 30 percent chance of rain, mainly between 11am and 3pm. Mostly cloudy, with a high near 44. Wind chill values between 25 and 35. Southwest wind 7 to 17 mph, with gusts as high as 30 mph.
Friday Night
Mostly cloudy, with a temperature rising to around 45 by 5am. Southwest wind 10 to 14 mph.
Saturday
A 40 percent chance of light rain, mainly after noon. Mostly cloudy, with a high near 56. Southwest wind 6 to 8 mph.
Saturday Night
Rain likely. Cloudy, with a low around 41. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday
Rain likely. Cloudy, with a high near 44. Chance of precipitation is 60%.
Sunday Night
Rain likely. Cloudy, with a low around 40. Chance of precipitation is 70%.
Monday
Rain likely. Cloudy, with a high near 51. Chance of precipitation is 60%.
Monday Night
A 40 percent chance of rain before midnight. Mostly cloudy, with a low around 41.
Tuesday
A 30 percent chance of rain. Mostly cloudy, with a high near 50.
Tuesday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 40.
Wednesday
A 30 percent chance of showers. Partly sunny, with a high near 51.
Click Map For Forecast
Point Forecast:
Islip NYSimilar City Names
 40.73°N 73.22°W (Elev. 7 ft)
3:36 am EDT Mar 23, 2017
5am EDT Mar 23, 2017-6pm EDT Mar 29, 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