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.

Fog/Mist

47°F

8°C

Humidity 97%
Wind Speed S 9 mph
Barometer 29.53 in (999.9 mb)
Dewpoint 46°F (8°C)
Visibility 5.00 mi
Wind Chill43°F (6°C)
Last update 12 Mar 6:56 am EDT
Extended Forecast for

3 Miles SE Bellport NY

  • Today

    Today: Rain likely before 5pm, then rain and snow. Patchy fog before 9am. Temperature rising to near 48 by 9am, then falling to around 38 during the remainder of the day. Breezy, with a southwest wind 7 to 12 mph becoming northwest 17 to 22 mph in the morning. Chance of precipitation is 80%. Total daytime snow accumulation of less than a half inch possible.

    High: 48 °F⇓

    Chance Rain
    and Patchy
    Fog then
    Rain/Snow and
    Breezy

  • Tonight

    Tonight: Snow, possibly mixed with rain, becoming all snow after 7pm, then gradually ending. Low around 32. Wind chill values between 20 and 25. Breezy, with a northwest wind 20 to 22 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 32 °F

    Breezy.
    Rain/Snow
    then Mostly
    Clear

  • Friday

    Friday: Increasing clouds, with a high near 43. Wind chill values between 25 and 30. Breezy, with a west wind 10 to 15 mph becoming south 16 to 21 mph in the afternoon.

    High: 43 °F

    Sunny then
    Mostly Cloudy
    and Breezy

  • Friday Night

    Friday Night: Mostly cloudy, then gradually becoming mostly clear, with a steady temperature around 42. Windy, with a south wind around 26 mph.

    Low: 42 °F

    Decreasing
    Clouds and
    Windy

  • Saturday

    Saturday: Sunny, with a high near 46. Windy, with a west wind 22 to 28 mph.

    High: 46 °F

    Sunny and
    Windy

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 35.

    Low: 35 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Cloudy, with a high near 46.

    High: 46 °F

    Cloudy

  • Sunday Night

    Sunday Night: Rain, mainly after 2am. Low around 42. Breezy. Chance of precipitation is 80%.

    Low: 42 °F

    Breezy.
    Chance Rain
    then Rain

  • Monday

    Monday: Rain before 8am, then rain and possibly a thunderstorm between 8am and 2pm, then rain after 2pm. High near 52. Windy. Chance of precipitation is 90%.

    High: 52 °F

    Rain and
    Windy

Detailed Forecast

Today
Rain likely before 5pm, then rain and snow. Patchy fog before 9am. Temperature rising to near 48 by 9am, then falling to around 38 during the remainder of the day. Breezy, with a southwest wind 7 to 12 mph becoming northwest 17 to 22 mph in the morning. Chance of precipitation is 80%. Total daytime snow accumulation of less than a half inch possible.
Tonight
Snow, possibly mixed with rain, becoming all snow after 7pm, then gradually ending. Low around 32. Wind chill values between 20 and 25. Breezy, with a northwest wind 20 to 22 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Friday
Increasing clouds, with a high near 43. Wind chill values between 25 and 30. Breezy, with a west wind 10 to 15 mph becoming south 16 to 21 mph in the afternoon.
Friday Night
Mostly cloudy, then gradually becoming mostly clear, with a steady temperature around 42. Windy, with a south wind around 26 mph.
Saturday
Sunny, with a high near 46. Windy, with a west wind 22 to 28 mph.
Saturday Night
Increasing clouds, with a low around 35.
Sunday
Cloudy, with a high near 46.
Sunday Night
Rain, mainly after 2am. Low around 42. Breezy. Chance of precipitation is 80%.
Monday
Rain before 8am, then rain and possibly a thunderstorm between 8am and 2pm, then rain after 2pm. High near 52. Windy. Chance of precipitation is 90%.
Monday Night
Rain likely, mainly before 2am. Cloudy, with a low around 34. Windy. Chance of precipitation is 70%.
Tuesday
A 30 percent chance of rain. Mostly sunny, with a high near 39. Breezy.
Tuesday Night
Partly cloudy, with a low around 27. Breezy.
Wednesday
Mostly sunny, with a high near 36.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SE Bellport NY
 40.71°N 72.9°W (Elev. 0 ft)
Last Update:
7:04 am EDT Mar 12, 2026
Forecast Valid:
7am EDT Mar 12, 2026-6pm EDT Mar 18, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation