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.

Overcast

51°F

11°C

Humidity 61%
Wind Speed SE 15 mph
Barometer 30.20 in (1022.7 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Wind Chill46°F (8°C)
Last update 21 Apr 4:56 pm EDT
Extended Forecast for

Terryville NY

  • Tonight

    Tonight: Showers likely before 2am, then showers and possibly a thunderstorm between 2am and 5am, then a chance of showers and thunderstorms after 5am. Steady temperature around 52. South wind 10 to 13 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 52 °F

    Showers

  • Tuesday

    Tuesday: A 30 percent chance of showers before 8am. Cloudy, then gradually becoming mostly sunny, with a high near 77. West wind 7 to 15 mph.

    High: 77 °F

    Chance
    Showers then
    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 49. North wind 5 to 8 mph.

    Low: 49 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 72. Northwest wind 5 to 11 mph becoming west in the afternoon.

    High: 72 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 47. Southwest wind 5 to 7 mph becoming calm in the evening.

    Low: 47 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 64.

    High: 64 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 47.

    Low: 47 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 64.

    High: 64 °F

    Partly Sunny

  • Friday Night

    Friday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 50.

    Low: 50 °F

    Chance
    Showers

Detailed Forecast

Tonight
Showers likely before 2am, then showers and possibly a thunderstorm between 2am and 5am, then a chance of showers and thunderstorms after 5am. Steady temperature around 52. South wind 10 to 13 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
A 30 percent chance of showers before 8am. Cloudy, then gradually becoming mostly sunny, with a high near 77. West wind 7 to 15 mph.
Tuesday Night
Partly cloudy, with a low around 49. North wind 5 to 8 mph.
Wednesday
Mostly sunny, with a high near 72. Northwest wind 5 to 11 mph becoming west in the afternoon.
Wednesday Night
Mostly clear, with a low around 47. Southwest wind 5 to 7 mph becoming calm in the evening.
Thursday
Mostly sunny, with a high near 64.
Thursday Night
Partly cloudy, with a low around 47.
Friday
Partly sunny, with a high near 64.
Friday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 50.
Saturday
Showers likely. Mostly cloudy, with a high near 65. Chance of precipitation is 70%.
Saturday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 47.
Sunday
Sunny, with a high near 62.
Sunday Night
Mostly clear, with a low around 46.
Monday
Mostly sunny, with a high near 63.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Terryville NY
 40.91°N 73.06°W (Elev. 154 ft)
Last Update:
5:09 pm EDT Apr 21, 2025
Forecast Valid:
5pm EDT Apr 21, 2025-6pm EDT Apr 28, 2025
 
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