Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Mostly Cloudy

61°F

16°C

Humidity 81%
Wind Speed N 6 mph
Barometer 29.98 in (1015.2 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 22 Sep 5:56 am EDT
Extended Forecast for

Smithtown NY

Coastal Flood Advisory September 22, 12:00pm until September 22, 05:00pm
Click here for hazard details and duration
Coastal Flood Advisory
  • Today

    Today: Mostly sunny, with a high near 73. Northeast wind 9 to 11 mph.

    High: 73 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 55. Northeast wind around 10 mph.

    Low: 55 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 68. Northeast wind around 10 mph.

    High: 68 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 56. Northeast wind around 8 mph.

    Low: 56 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 67. Northeast wind around 11 mph.

    High: 67 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 57.

    Low: 57 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 30 percent chance of showers after 2pm.  Cloudy, with a high near 68.

    High: 68 °F

    Cloudy then
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers.  Cloudy, with a low around 59.

    Low: 59 °F

    Chance
    Showers

  • Thursday

    Thursday: A 40 percent chance of showers.  Mostly cloudy, with a high near 71.

    High: 71 °F

    Chance
    Showers

Detailed Forecast

Today
Mostly sunny, with a high near 73. Northeast wind 9 to 11 mph.
Tonight
Partly cloudy, with a low around 55. Northeast wind around 10 mph.
Monday
Partly sunny, with a high near 68. Northeast wind around 10 mph.
Monday Night
Mostly cloudy, with a low around 56. Northeast wind around 8 mph.
Tuesday
Partly sunny, with a high near 67. Northeast wind around 11 mph.
Tuesday Night
Mostly cloudy, with a low around 57.
Wednesday
A 30 percent chance of showers after 2pm. Cloudy, with a high near 68.
Wednesday Night
A 50 percent chance of showers. Cloudy, with a low around 59.
Thursday
A 40 percent chance of showers. Mostly cloudy, with a high near 71.
Thursday Night
A 30 percent chance of showers before 2am. Mostly cloudy, with a low around 57.
Friday
Partly sunny, with a high near 72.
Friday Night
Mostly cloudy, with a low around 57.
Saturday
Partly sunny, with a high near 71.
Click Map For Forecast

ABOUT THIS FORECAST

 
Point Forecast:
Smithtown NY
 40.86°N 73.19°W (Elev. 98 ft)
5:50 am EDT Sep 22, 2024
6am EDT Sep 22, 2024-6pm EDT Sep 28, 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