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.

Isolated Severe Thunderstorms Will Continue

Isolated severe thunderstorms will continue from Minnesota to southwestern Kansas and vicinity. Within that swath, the most probable area for greater concentrations of severe weather is from eastern Nebraska across parts of Iowa. A marginal risk for severe thunderstorms also exists over eastern New England.

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.




Humidity 42%
Wind Speed Calm
Barometer 29.97 in (1014.7 mb)
Dewpoint 65°F (18°C)
Visibility 8.00 mi
Heat Index93°F (34°C)
Last update 29 Jul 10:56 am EDT

Detailed Forecast

This Afternoon
Mostly sunny. Hot with highs in the lower 90s. West winds around 5 mph...becoming southwest 10 to 15 mph. Heat index values in the upper 90s.
Mostly clear. Humid with lows in the mid 70s. Southwest winds 10 to 15 mph.
Partly sunny. A chance of showers and thunderstorms in the afternoon. Breezy and humid with highs in the mid 80s. Southwest winds 5 to 10 mph...increasing to south 15 to 20 mph in the afternoon. Chance of rain 40 percent.
Thursday Night
Mostly cloudy. Showers likely with a chance of thunderstorms in the evening...then a chance of showers and thunderstorms after midnight. Some thunderstorms may produce heavy rainfall in the evening. Humid with lows in the lower 70s. Southwest winds 10 to 15 mph. Chance of rain 60 percent.
Mostly sunny. Highs in the upper 80s. West winds 5 to 10 mph.
Friday Night
Mostly clear. Lows in the upper 60s.
Sunny. Highs in the upper 80s.
Saturday Night
Mostly cloudy in the evening...then becoming partly cloudy. Lows around 70.
Mostly sunny. Highs in the mid 80s.
Sunday Night
Partly cloudy. Lows around 70.
Partly sunny. Highs in the mid 80s.
Monday Night
Mostly cloudy. Lows in the lower 70s.
Partly sunny. Highs in the mid 80s.

  Click Map For Detailed Forecast
1126 AM EDT WED JUL 29 2015
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Additional Resources

Radar & Satellite Image

Northeast Radar Mosaic Link to Satellite Data

Hourly Weather Graph

National Digital Forecast Database