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.

Severe weather possible across central and northern Plains

The NWS Storm Prediction Center is forecasting a risk of severe thunderstorms Monday afternoon and evening across parts of the central and northern Plains. There is an Enhanced Risk across the western Dakotas and extreme eastern Montana, where there is the potential for very large hail, damaging winds and a few tornadoes.
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Hazardous Weather Conditions

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Mostly Cloudy

75°F

24°C

Humidity 82%
Wind Speed SW 7 mph
Barometer 30.00 in (1015.6 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Last update 27 Jul 8:56 pm EDT

Detailed Forecast

Tonight
Partly cloudy late this evening...then becoming mostly cloudy. Lows in the upper 60s. Southwest winds 5 to 10 mph.
Tuesday
Mostly sunny. Humid with highs in the upper 80s. Southwest winds 5 to 10 mph.
Tuesday Night
Partly cloudy in the evening...then becoming mostly clear. Humid with lows in the lower 70s. Southwest winds 5 to 10 mph.
Wednesday
Sunny...hot. Humid with highs in the lower 90s. Southwest winds 5 to 10 mph with gusts up to 20 mph. Heat index values in the upper 90s.
Wednesday Night
Mostly clear. Humid with lows in the mid 70s. Southwest winds 5 to 10 mph. Gusts up to 20 mph in the evening.
Thursday
Mostly sunny. Highs in the upper 80s.
Thursday Night
Mostly cloudy with a chance of showers and thunderstorms. Lows around 70. Chance of rain 40 percent.
Friday
Partly sunny. A chance of showers and thunderstorms in the morning. Highs in the mid 80s. Chance of rain 30 percent.
Friday Night
Mostly clear. Lows in the upper 60s.
Saturday
Sunny. Highs in the upper 80s.
Saturday Night
Mostly clear. Lows around 70.
Sunday
Sunny. Highs in the mid 80s.
Sunday Night
Partly cloudy. Lows in the lower 70s.
Monday
Mostly sunny. Highs in the upper 80s.



  Click Map For Detailed Forecast
912 PM EDT MON JUL 27 2015
 
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Additional Resources

Radar & Satellite Image

Northeast Radar Mosaic Link to Satellite Data

Hourly Weather Graph

National Digital Forecast Database