National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Mostly Cloudy

69°F

21°C

Humidity 87%
Wind Speed SW 6 mph
Barometer 30.31 in (1026.2 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Last update 20 Jun 5:56 am EDT
Extended Forecast for

Ronkonkoma NY

  • Today

    Today: Mostly sunny, with a high near 85. Southwest wind 9 to 14 mph.

    High: 85 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 70. Southwest wind 8 to 11 mph.

    Low: 70 °F

    Partly Cloudy

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 87. South wind 8 to 11 mph.

    High: 87 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms, mainly after 8pm. Mostly cloudy, with a low around 68. South wind 5 to 9 mph.

    Low: 68 °F

    Chance
    T-storms

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms, mainly after 2pm. Partly sunny, with a high near 82. South wind 7 to 10 mph.

    High: 82 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 70.

    Low: 70 °F

    Chance
    T-storms

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 85.

    High: 85 °F

    Partly Sunny
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 8pm. Mostly cloudy, with a low around 72. Chance of precipitation is 70%.

    Low: 72 °F

    Showers
    Likely

  • Monday

    Monday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 85.

    High: 85 °F

    Chance
    T-storms

Detailed Forecast

Today
Mostly sunny, with a high near 85. Southwest wind 9 to 14 mph.
Tonight
Partly cloudy, with a low around 70. Southwest wind 8 to 11 mph.
Friday
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 87. South wind 8 to 11 mph.
Friday Night
A 30 percent chance of showers and thunderstorms, mainly after 8pm. Mostly cloudy, with a low around 68. South wind 5 to 9 mph.
Saturday
A 30 percent chance of showers and thunderstorms, mainly after 2pm. Partly sunny, with a high near 82. South wind 7 to 10 mph.
Saturday Night
A 30 percent chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 70.
Sunday
A 30 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 85.
Sunday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 8pm. Mostly cloudy, with a low around 72. Chance of precipitation is 70%.
Monday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 85.
Monday Night
Mostly clear, with a low around 68.
Tuesday
Sunny, with a high near 84.
Tuesday Night
Mostly clear, with a low around 68.
Wednesday
Mostly sunny, with a high near 85.
Click Map For Forecast
Disclaimer
Map Legend

ABOUT THIS FORECAST

 
Point Forecast:
Ronkonkoma NY
 40.81°N 73.11°W (Elev. 98 ft)
Last Update:
5:58 am EDT Jun 20, 2024
Forecast Valid:
6am EDT Jun 20, 2024-6pm EDT Jun 26, 2024
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation