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

Shirley, Brookhaven Airport (KHWV)

Lat: 40.82°NLon: 72.87°WElev: 82ft.

Fair

71°F

22°C

Humidity 66%
Wind Speed NW 7 mph
Barometer 30.01 in (1016.1 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 25 Aug 9:56 am EDT
Extended Forecast for

Mid Island NY

  • Today

    Today: Sunny, with a high near 77. West wind 7 to 10 mph, with gusts as high as 20 mph.

    High: 77 °F

    Sunny

  • Tonight

    Tonight: Patchy fog after 5am. Otherwise, mostly clear, with a low around 61. Northwest wind 3 to 6 mph.

    Low: 61 °F

    Partly Cloudy
    then Patchy
    Fog

  • Wednesday

    Wednesday: Patchy fog before 8am. Otherwise, sunny, with a high near 78. Light and variable wind becoming west around 6 mph in the afternoon.

    High: 78 °F

    Patchy Fog
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 66. South wind around 6 mph.

    Low: 66 °F

    Partly Cloudy

  • Thursday

    Thursday: A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 78. South wind 7 to 13 mph. Chance of precipitation is 40%.

    High: 78 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Showers likely, mainly after 8pm. Mostly cloudy, with a low around 66. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 66 °F

    Showers
    Likely

  • Friday

    Friday: A 40 percent chance of showers before 2pm. Partly sunny, with a high near 80.

    High: 80 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 65.

    Low: 65 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 78.

    High: 78 °F

    Partly Sunny

Detailed Forecast

Today
Sunny, with a high near 77. West wind 7 to 10 mph, with gusts as high as 20 mph.
Tonight
Patchy fog after 5am. Otherwise, mostly clear, with a low around 61. Northwest wind 3 to 6 mph.
Wednesday
Patchy fog before 8am. Otherwise, sunny, with a high near 78. Light and variable wind becoming west around 6 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 66. South wind around 6 mph.
Thursday
A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 78. South wind 7 to 13 mph. Chance of precipitation is 40%.
Thursday Night
Showers likely, mainly after 8pm. Mostly cloudy, with a low around 66. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
A 40 percent chance of showers before 2pm. Partly sunny, with a high near 80.
Friday Night
Mostly cloudy, with a low around 65.
Saturday
Partly sunny, with a high near 78.
Saturday Night
Partly cloudy, with a low around 63.
Sunday
Mostly sunny, with a high near 79.
Sunday Night
Partly cloudy, with a low around 66.
Monday
Mostly sunny, with a high near 81.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mid Island NY
 40.87°N 72.92°W (Elev. 108 ft)
Last Update:
8:48 am EDT Aug 25, 2026
Forecast Valid:
10am EDT Aug 25, 2026-6pm EDT Aug 31, 2026
 
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