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

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

A Few Clouds

64°F

18°C

Humidity 75%
Wind Speed N 9 mph
Barometer 30.02 in (1016.4 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 12 Jun 6:56 am EDT
Extended Forecast for

Ronkonkoma NY

  • Today

    Today: Mostly sunny, with a high near 77. North wind 5 to 9 mph becoming southwest in the afternoon.

    High: 77 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 62. Southwest wind 5 to 8 mph.

    Low: 62 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 81. South wind 5 to 14 mph.

    High: 81 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 67. South wind around 11 mph.

    Low: 67 °F

    Partly Cloudy

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 81. South wind 13 to 15 mph.

    High: 81 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: Showers and thunderstorms likely before 11pm, then showers likely between 11pm and 2am. Mostly cloudy, then gradually becoming mostly clear, with a low around 62. Chance of precipitation is 60%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 62 °F

    Showers
    Likely

  • Saturday

    Saturday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 59.

    Low: 59 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 77. North wind 5 to 9 mph becoming southwest in the afternoon.
Tonight
Partly cloudy, with a low around 62. Southwest wind 5 to 8 mph.
Thursday
Sunny, with a high near 81. South wind 5 to 14 mph.
Thursday Night
Partly cloudy, with a low around 67. South wind around 11 mph.
Friday
A 50 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 81. South wind 13 to 15 mph.
Friday Night
Showers and thunderstorms likely before 11pm, then showers likely between 11pm and 2am. Mostly cloudy, then gradually becoming mostly clear, with a low around 62. Chance of precipitation is 60%. New precipitation amounts between a half and three quarters of an inch possible.
Saturday
Sunny, with a high near 80.
Saturday Night
Mostly clear, with a low around 59.
Sunday
Sunny, with a high near 78.
Sunday Night
Partly cloudy, with a low around 62.
Monday
Mostly sunny, with a high near 81.
Monday Night
Mostly clear, with a low around 67.
Tuesday
Mostly sunny, with a high near 85.
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ABOUT THIS FORECAST

 
Point Forecast:
Ronkonkoma NY
 40.81°N 73.11°W (Elev. 98 ft)
Last Update:
7:17 am EDT Jun 12, 2024
Forecast Valid:
7am EDT Jun 12, 2024-6pm EDT Jun 18, 2024
 
Forecast Discussion
 
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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