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

Hazardous Weather Conditions

Current conditions at

Shirley, Brookhaven Airport (KHWV)

Lat: 40.82°NLon: 72.87°WElev: 82ft.

Fog

65°F

18°C

Humidity 97%
Wind Speed S 5 mph
Barometer 29.96 in (1014.5 mb)
Dewpoint 64°F (18°C)
Visibility 0.50 mi
Last update 18 Jun 4:56 am EDT
Extended Forecast for

Mid Island NY

Dense Fog Advisory until June 18, 07:00am
Click here for hazard details and duration
Dense Fog Advisory
  •  
    Dense Fog Advisory until June 18, 07:00am

    NOW until 7:00am Wed

    Dense Fog Advisory

  • Overnight

    Low: 65 °F

    Chance
    Showers and
    Dense Fog

  • Wednesday

    Wednesday: A chance of showers, with thunderstorms also possible after 2pm. Widespread dense fog, mainly before 7am. Otherwise, cloudy, with a high near 79. South wind around 6 mph. Chance of precipitation is 40%.

    High: 79 °F

    Chance
    Showers and
    Dense Fog

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms before 11pm. Mostly cloudy, with a low around 67. Light south wind.

    Low: 67 °F

    Chance
    Showers then
    Mostly Cloudy

  • Juneteenth

    Juneteenth: A 30 percent chance of showers and thunderstorms after 2pm. Some of the storms could be severe. Increasing clouds, with a high near 87. Southwest wind 6 to 13 mph.

    High: 87 °F

    Partly Sunny
    then Severe
    Thunderstorms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Some of the storms could be severe. Cloudy, then gradually becoming partly cloudy, with a low around 65. Southwest wind 9 to 11 mph. Chance of precipitation is 40%.

    Low: 65 °F

    Severe
    Thunderstorms
    then Chance
    Showers

  • Friday

    Friday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 64.

    Low: 64 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

Detailed Forecast

Overnight
A 50 percent chance of showers. Widespread dense fog. Otherwise, cloudy, with a low around 65. Light south wind.
Wednesday
A chance of showers, with thunderstorms also possible after 2pm. Widespread dense fog, mainly before 7am. Otherwise, cloudy, with a high near 79. South wind around 6 mph. Chance of precipitation is 40%.
Wednesday Night
A 30 percent chance of showers and thunderstorms before 11pm. Mostly cloudy, with a low around 67. Light south wind.
Juneteenth
A 30 percent chance of showers and thunderstorms after 2pm. Some of the storms could be severe. Increasing clouds, with a high near 87. Southwest wind 6 to 13 mph.
Thursday Night
A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Some of the storms could be severe. Cloudy, then gradually becoming partly cloudy, with a low around 65. Southwest wind 9 to 11 mph. Chance of precipitation is 40%.
Friday
Sunny, with a high near 83.
Friday Night
Mostly clear, with a low around 64.
Saturday
Sunny, with a high near 84.
Saturday Night
Mostly cloudy, with a low around 67.
Sunday
Partly sunny, with a high near 85.
Sunday Night
Partly cloudy, with a low around 70.
Monday
Sunny, with a high near 90.
Monday Night
Mostly clear, with a low around 70.
Tuesday
Sunny, with a high near 91.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mid Island NY
 40.9°N 72.95°W (Elev. 92 ft)
Last Update:
3:06 am EDT Jun 18, 2025
Forecast Valid:
5am EDT Jun 18, 2025-6pm EDT Jun 24, 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