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

48°F

9°C

Humidity 52%
Wind Speed NW 17 G 23 mph
Barometer 30.19 in (1022.4 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Wind Chill42°F (6°C)
Last update 24 Nov 9:56 am EST
Extended Forecast for

Upton NY

  • Today

    Today: Sunny, with a temperature falling to around 46 by 5pm. Northwest wind 6 to 13 mph.

    High: 51 °F⇓

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 34. Calm wind.

    Low: 34 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: A 30 percent chance of rain after 1pm. Cloudy, with a high near 56. Light southwest wind increasing to 5 to 10 mph in the morning.

    High: 56 °F

    Cloudy then
    Chance Rain

  • Tuesday Night

    Tuesday Night: Rain. Steady temperature around 52. South wind around 6 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 52 °F

    Rain

  • Wednesday

    Wednesday: Rain likely, mainly before 1pm. Cloudy, with a high near 61. Southwest wind 5 to 8 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 61 °F

    Rain Likely

  • Wednesday Night

    Wednesday Night: A 30 percent chance of rain before 1am. Cloudy, then gradually becoming partly cloudy, with a low around 38.

    Low: 38 °F

    Chance Rain

  • Thanksgiving Day

    Thanksgiving Day: Mostly sunny, with a high near 46.

    High: 46 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 31.

    Low: 31 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 43. Breezy.

    High: 43 °F

    Mostly Sunny
    then Mostly
    Sunny and
    Breezy

Detailed Forecast

Today
Sunny, with a temperature falling to around 46 by 5pm. Northwest wind 6 to 13 mph.
Tonight
Increasing clouds, with a low around 34. Calm wind.
Tuesday
A 30 percent chance of rain after 1pm. Cloudy, with a high near 56. Light southwest wind increasing to 5 to 10 mph in the morning.
Tuesday Night
Rain. Steady temperature around 52. South wind around 6 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
Rain likely, mainly before 1pm. Cloudy, with a high near 61. Southwest wind 5 to 8 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
A 30 percent chance of rain before 1am. Cloudy, then gradually becoming partly cloudy, with a low around 38.
Thanksgiving Day
Mostly sunny, with a high near 46.
Thursday Night
Mostly clear, with a low around 31.
Friday
Mostly sunny, with a high near 43. Breezy.
Friday Night
Mostly clear, with a low around 30.
Saturday
Sunny, with a high near 43.
Saturday Night
Mostly cloudy, with a low around 31.
Sunday
Mostly cloudy, with a high near 51.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Upton NY
 40.87°N 72.89°W (Elev. 89 ft)
Last Update:
9:54 am EST Nov 24, 2025
Forecast Valid:
10am EST Nov 24, 2025-6pm EST Nov 30, 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