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.

A Few Clouds

38°F

3°C

Humidity 70%
Wind Speed Calm
Barometer 30.22 in (1023.2 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Last update 19 Nov 6:56 pm EST
Extended Forecast for

Bohemia NY

  • Tonight

    Tonight: Patchy frost between 9pm and 1am. Otherwise, increasing clouds, with a low around 33. Calm wind.

    Low: 33 °F

    Patchy Frost

  • Thursday

    Thursday: Mostly cloudy, then gradually becoming sunny, with a high near 48. Calm wind becoming north around 6 mph.

    High: 48 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 35. Calm wind.

    Low: 35 °F

    Increasing
    Clouds

  • Friday

    Friday: A 20 percent chance of rain after 4pm. Mostly cloudy, with a high near 54. Light southwest wind increasing to 5 to 10 mph in the morning.

    High: 54 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Friday Night

    Friday Night: Rain likely, mainly after 1am. Cloudy, with a low around 43. Southwest wind around 6 mph becoming light and variable. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 43 °F

    Rain Likely

  • Saturday

    Saturday: Cloudy, then gradually becoming mostly sunny, with a high near 52.

    High: 52 °F

    Decreasing
    Clouds

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 33.

    Low: 33 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 49.

    High: 49 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 39.

    Low: 39 °F

    Partly Cloudy

Detailed Forecast

Tonight
Patchy frost between 9pm and 1am. Otherwise, increasing clouds, with a low around 33. Calm wind.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 48. Calm wind becoming north around 6 mph.
Thursday Night
Increasing clouds, with a low around 35. Calm wind.
Friday
A 20 percent chance of rain after 4pm. Mostly cloudy, with a high near 54. Light southwest wind increasing to 5 to 10 mph in the morning.
Friday Night
Rain likely, mainly after 1am. Cloudy, with a low around 43. Southwest wind around 6 mph becoming light and variable. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
Cloudy, then gradually becoming mostly sunny, with a high near 52.
Saturday Night
Partly cloudy, with a low around 33.
Sunday
Mostly sunny, with a high near 49.
Sunday Night
Partly cloudy, with a low around 39.
Monday
Mostly sunny, with a high near 55.
Monday Night
Partly cloudy, with a low around 40.
Tuesday
Partly sunny, with a high near 55.
Tuesday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 44.
Wednesday
A 40 percent chance of rain. Partly sunny, with a high near 58.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Bohemia NY
 40.78°N 73.12°W (Elev. 72 ft)
Last Update:
6:37 pm EST Nov 19, 2025
Forecast Valid:
7pm EST Nov 19, 2025-6pm EST Nov 26, 2025
 
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