Hazardous Weather Conditions

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Mostly Cloudy

81°F

27°C

Humidity 67%
Wind Speed SW 13 mph
Barometer 30.31 in (1026.4 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Heat Index84°F (29°C)
Last update 20 Jun 11:56 am EDT
Extended Forecast for

Stony Brook NY

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 87. Southwest wind 5 to 14 mph.

    High: 87 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 69. Southwest wind 7 to 13 mph.

    Low: 69 °F

    Partly Cloudy

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms after 2pm.  Mostly sunny, with a high near 89. Southwest wind 7 to 9 mph.

    High: 89 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 68. South wind 5 to 8 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 85. Southeast wind 6 to 9 mph.

    High: 85 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms before 2am.  Mostly cloudy, with a low around 69.

    Low: 69 °F

    Chance
    T-storms

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms after 2pm.  Partly sunny, with a high near 87.

    High: 87 °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 71. Chance of precipitation is 70%.

    Low: 71 °F

    Showers
    Likely

  • Monday

    Monday: A 50 percent chance of showers and thunderstorms.  Partly sunny, with a high near 87.

    High: 87 °F

    Chance
    T-storms

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 87. Southwest wind 5 to 14 mph.
Tonight
Partly cloudy, with a low around 69. Southwest wind 7 to 13 mph.
Friday
A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 89. Southwest wind 7 to 9 mph.
Friday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 68. South wind 5 to 8 mph.
Saturday
A 30 percent chance of showers and thunderstorms, mainly after 2pm. Partly sunny, with a high near 85. Southeast wind 6 to 9 mph.
Saturday Night
A 30 percent chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 69.
Sunday
A 30 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 87.
Sunday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 8pm. Mostly cloudy, with a low around 71. Chance of precipitation is 70%.
Monday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 87.
Monday Night
Mostly clear, with a low around 67.
Tuesday
Sunny, with a high near 86.
Tuesday Night
Mostly clear, with a low around 67.
Wednesday
Mostly sunny, with a high near 87.
Click Map For Forecast

ABOUT THIS FORECAST

 
Point Forecast:
Stony Brook NY
 40.92°N 73.12°W (Elev. 112 ft)
12:25 pm EDT Jun 20, 2024
12pm EDT Jun 20, 2024-6pm EDT Jun 26, 2024
 
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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