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

Hazardous Weather Conditions

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Fog/Mist

41°F

5°C

Humidity 100%
Wind Speed S 3 mph
Barometer 30.02 in (1016.6 mb)
Dewpoint 41°F (5°C)
Visibility 0.75 mi
Last update 10 Mar 12:56 am EDT
Extended Forecast for

Selden NY

  • Overnight

    Overnight: Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 40. Calm wind.

    Low: 40 °F

    Patchy Fog

  • Tuesday

    Tuesday: Patchy fog before 8am. Otherwise, mostly sunny, with a high near 66. Calm wind becoming south around 6 mph in the afternoon.

    High: 66 °F

    Patchy Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Patchy fog. Otherwise, partly cloudy, with a low around 40. Light south wind.

    Low: 40 °F

    Patchy Fog

  • Wednesday

    Wednesday: A 20 percent chance of showers. Mostly cloudy, with a high near 59. Light south wind increasing to 5 to 10 mph in the morning.

    High: 59 °F

    Slight Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 47. Southwest wind around 10 mph, with gusts as high as 22 mph.

    Low: 47 °F

    Chance
    Showers

  • Thursday

    Thursday: Rain likely, mainly before 2pm. Mostly cloudy, with a temperature rising to near 51 by 9am, then falling to around 44 during the remainder of the day. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 51 °F⇓

    Rain Likely

  • Thursday Night

    Thursday Night: A 30 percent chance of rain before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 29.

    Low: 29 °F

    Chance Rain
    then Partly
    Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 44.

    High: 44 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 30 percent chance of rain before 2am. Mostly cloudy, with a low around 34.

    Low: 34 °F

    Chance Rain

Detailed Forecast

Overnight
Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 40. Calm wind.
Tuesday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 66. Calm wind becoming south around 6 mph in the afternoon.
Tuesday Night
Patchy fog. Otherwise, partly cloudy, with a low around 40. Light south wind.
Wednesday
A 20 percent chance of showers. Mostly cloudy, with a high near 59. Light south wind increasing to 5 to 10 mph in the morning.
Wednesday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 47. Southwest wind around 10 mph, with gusts as high as 22 mph.
Thursday
Rain likely, mainly before 2pm. Mostly cloudy, with a temperature rising to near 51 by 9am, then falling to around 44 during the remainder of the day. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
A 30 percent chance of rain before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 29.
Friday
Mostly sunny, with a high near 44.
Friday Night
A 30 percent chance of rain before 2am. Mostly cloudy, with a low around 34.
Saturday
Mostly sunny, with a high near 47.
Saturday Night
Partly cloudy, with a low around 32.
Sunday
Mostly cloudy, with a high near 50.
Sunday Night
Rain likely. Mostly cloudy, with a low around 38. Chance of precipitation is 60%.
Monday
Rain likely. Cloudy, with a high near 48. Chance of precipitation is 60%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Selden NY
 40.86°N 73.04°W (Elev. 115 ft)
Last Update:
11:38 pm EDT Mar 9, 2026
Forecast Valid:
1am EDT Mar 10, 2026-6pm EDT Mar 16, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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