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.

Mostly Cloudy

68°F

20°C

Humidity 44%
Wind Speed E 10 mph
Barometer 30.32 in (1026.6 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 21 Sep 12:56 pm EDT
Extended Forecast for

Bohemia NY

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 69. East wind around 10 mph.

    High: 69 °F

    Partly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 53. East wind around 6 mph becoming calm in the evening.

    Low: 53 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 73. Calm wind becoming south 5 to 7 mph in the afternoon.

    High: 73 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 61. South wind 3 to 5 mph.

    Low: 61 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A slight chance of showers between 2pm and 5pm, then a slight chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 78. Southwest wind 5 to 10 mph. Chance of precipitation is 20%.

    High: 78 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms between 8pm and 11pm, then a chance of showers after 11pm. Mostly cloudy, with a low around 64. Chance of precipitation is 50%.

    Low: 64 °F

    Chance
    T-storms then
    Chance
    Showers

  • Wednesday

    Wednesday: A 40 percent chance of showers. Mostly cloudy, with a high near 76.

    High: 76 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 62.

    Low: 62 °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

This Afternoon
Partly sunny, with a high near 69. East wind around 10 mph.
Tonight
Partly cloudy, with a low around 53. East wind around 6 mph becoming calm in the evening.
Monday
Sunny, with a high near 73. Calm wind becoming south 5 to 7 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 61. South wind 3 to 5 mph.
Tuesday
A slight chance of showers between 2pm and 5pm, then a slight chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 78. Southwest wind 5 to 10 mph. Chance of precipitation is 20%.
Tuesday Night
A chance of showers and thunderstorms between 8pm and 11pm, then a chance of showers after 11pm. Mostly cloudy, with a low around 64. Chance of precipitation is 50%.
Wednesday
A 40 percent chance of showers. Mostly cloudy, with a high near 76.
Wednesday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 62.
Thursday
A 40 percent chance of showers. Mostly cloudy, with a high near 71.
Thursday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 61.
Friday
A 40 percent chance of showers. Mostly cloudy, with a high near 75.
Friday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 63.
Saturday
A 40 percent chance of showers. Mostly cloudy, with a high near 74.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Bohemia NY
 40.76°N 73.12°W (Elev. 49 ft)
Last Update:
1:55 pm EDT Sep 21, 2025
Forecast Valid:
1pm EDT Sep 21, 2025-6pm EDT Sep 27, 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