On July 7, 2015, NWS implemented changes to the icons depicted on all of its point-forecast pages. Changes include new icon images with increased clarity, 6-hour increments for rapidly changing weather and new color blocks to highlight forecast hazards.

A page depicting all of the new icon images can be accessed here: www.weather.gov/forecast-icons

Changes to the icons were based on analysis of 6,700 public comments collected in 2014. Also, many of these changes are based on the results of a research project led by the National Center for Atmospheric Research.

Users are encouraged to continue to provide comments regarding these changes via email at icons@noaa.gov. NWS will continue to analyze incoming feedback and refine the icons as necessary. Any substantial change to the icons will be facilitated through the NWS public comment/review process.

Active weather from Northern Rockies to Upper Midwest

A storm system in the northern U.S. will bring a variety of weather across several states from the Northern Rockies to the Upper Midwest on Saturday. Several inches of early-season snow are forecast in the higher elevations of Idaho and western Montana. Locally-heavy rain will accompany strong thunderstorms in the northern Plains and Upper Midwest.
Read More...

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

A Few Clouds

67°F

19°C

Humidity 79%
Wind Speed NE 9 mph
Barometer 30.27 in (1024.9 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 5 Sep 7:56 am EDT

Detailed Forecast

Today
Mostly sunny. Highs around 80. East winds around 10 mph with gusts up to 20 mph.
Tonight
Clear. Lows in the lower 60s. East winds 5 to 10 mph.
Sunday
Sunny. Highs in the lower 80s. Northeast winds around 5 mph...becoming southeast in the afternoon.
Sunday Night
Mostly clear. Lows in the mid 60s. Southwest winds 5 to 10 mph.
Labor Day
Sunny. Highs in the upper 80s. West winds around 5 mph...becoming southwest in the afternoon.
Monday Night
Clear. Lows in the upper 60s.
Tuesday
Sunny. Highs in the upper 80s.
Tuesday Night
Mostly clear. Lows in the lower 70s.
Wednesday
Mostly sunny. Highs in the upper 80s.
Wednesday Night
Partly cloudy in the evening...then becoming mostly cloudy. Lows in the upper 60s.
Thursday
Partly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 30 percent.
Thursday Night
Mostly cloudy. A chance of showers and thunderstorms in the evening...then a chance of showers after midnight. Lows in the upper 60s. Chance of rain 30 percent.
Friday
Partly sunny. A chance of showers in the morning...then a chance of showers and thunderstorms in the afternoon. Highs in the lower 80s. Chance of rain 30 percent.



  Click Map For Detailed Forecast
340 AM EDT SAT SEP 5 2015
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Northeast Radar Mosaic Link to Satellite Data

Hourly Weather Graph

National Digital Forecast Database