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.

Mostly Cloudy

79°F

26°C

Humidity 47%
Wind Speed S 13 mph
Barometer 30.02 in (1016.5 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 2 Jun 1:56 pm EDT
Extended Forecast for

Ronkonkoma NY

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 82. Southwest wind around 11 mph.

    High: 82 °F

    Mostly Sunny

  • Tonight

    Tonight: A 40 percent chance of showers after 2am. Mostly cloudy, with a low around 63. Southwest wind 6 to 10 mph.

    Low: 63 °F

    Mostly Cloudy
    then Chance
    Showers

  • Monday

    Monday: A 30 percent chance of showers, mainly before 8am. Partly sunny, with a high near 81. West wind 5 to 7 mph becoming light and variable.

    High: 81 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 58. Southeast wind 3 to 7 mph.

    Low: 58 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 74. East wind 6 to 10 mph.

    High: 74 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 75.

    High: 75 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers after 2am. Clear, with a low around 62.

    Low: 62 °F

    Clear then
    Chance
    Showers

  • Thursday

    Thursday: Showers likely, mainly after 8am. Sunny, with a high near 76. Chance of precipitation is 60%.

    High: 76 °F

    Showers
    Likely

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 82. Southwest wind around 11 mph.
Tonight
A 40 percent chance of showers after 2am. Mostly cloudy, with a low around 63. Southwest wind 6 to 10 mph.
Monday
A 30 percent chance of showers, mainly before 8am. Partly sunny, with a high near 81. West wind 5 to 7 mph becoming light and variable.
Monday Night
Partly cloudy, with a low around 58. Southeast wind 3 to 7 mph.
Tuesday
Mostly sunny, with a high near 74. East wind 6 to 10 mph.
Tuesday Night
Partly cloudy, with a low around 58.
Wednesday
Sunny, with a high near 75.
Wednesday Night
A 40 percent chance of showers after 2am. Clear, with a low around 62.
Thursday
Showers likely, mainly after 8am. Sunny, with a high near 76. Chance of precipitation is 60%.
Thursday Night
Showers likely, with thunderstorms also possible after 2am. Clear, with a low around 63. Chance of precipitation is 60%.
Friday
A 30 percent chance of showers and thunderstorms. Sunny, with a high near 78.
Friday Night
Clear, with a low around 61.
Saturday
Sunny, with a high near 78.
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ABOUT THIS FORECAST

 
Point Forecast:
Ronkonkoma NY
 40.81°N 73.14°W (Elev. 49 ft)
Last Update:
10:31 am EDT Jun 2, 2024
Forecast Valid:
2pm EDT Jun 2, 2024-6pm EDT Jun 8, 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