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.

Mostly Cloudy

73°F

23°C

Humidity 64%
Wind Speed Vrbl 7 mph
Barometer 30.15 in (1020.8 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 2 Sep 11:56 am EDT
Extended Forecast for

Mid Island NY

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 73. East wind around 10 mph.

    High: 73 °F

    Mostly Cloudy

  • Tonight

    Tonight: A chance of showers and thunderstorms between 2am and 5am, then showers likely and possibly a thunderstorm after 5am. Mostly cloudy, with a low around 64. Southeast wind 3 to 5 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 64 °F

    Mostly Cloudy
    then Showers
    Likely

  • Thursday

    Thursday: Showers and thunderstorms likely, mainly before 2pm. Mostly cloudy, with a high near 81. Southwest wind 6 to 9 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 81 °F

    Showers
    Likely then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Mostly cloudy, with a low around 67. Southwest wind around 5 mph becoming light and variable in the evening. Chance of precipitation is 30%.

    Low: 67 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Friday

    Friday: Mostly sunny, with a high near 82. Northwest wind 5 to 8 mph.

    High: 82 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 62.

    Low: 62 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 76.

    High: 76 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 59.

    Low: 59 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 73.

    High: 73 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 73. East wind around 10 mph.
Tonight
A chance of showers and thunderstorms between 2am and 5am, then showers likely and possibly a thunderstorm after 5am. Mostly cloudy, with a low around 64. Southeast wind 3 to 5 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
Showers and thunderstorms likely, mainly before 2pm. Mostly cloudy, with a high near 81. Southwest wind 6 to 9 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Mostly cloudy, with a low around 67. Southwest wind around 5 mph becoming light and variable in the evening. Chance of precipitation is 30%.
Friday
Mostly sunny, with a high near 82. Northwest wind 5 to 8 mph.
Friday Night
Mostly clear, with a low around 62.
Saturday
Sunny, with a high near 76.
Saturday Night
Partly cloudy, with a low around 59.
Sunday
Sunny, with a high near 73.
Sunday Night
Mostly clear, with a low around 58.
Labor Day
Sunny, with a high near 74.
Monday Night
Partly cloudy, with a low around 61.
Tuesday
Mostly sunny, with a high near 77.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mid Island NY
 40.9°N 72.95°W (Elev. 92 ft)
Last Update:
11:17 am EDT Sep 2, 2026
Forecast Valid:
12pm EDT Sep 2, 2026-6pm EDT Sep 8, 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