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Hazardous Weather Conditions

Current conditions at

Shirley, Brookhaven Airport (KHWV)

Lat: 40.82°NLon: 72.87°WElev: 82ft.

Fair

4°C

39°F

Humidity 89%
Wind Speed SW 7 km/h
Barometer 1008.4 mb (29.78 in)
Dewpoint 2°C (36°F)
Visibility 16 km
Wind Chill2°C (35°F)
Last update 14 Mar 4:56 am EDT
Extended Forecast for

Upton NY

  • Today

    Today: Sunny, with a high near 8. Breezy, with a west wind 16 to 26 km/h increasing to 29 to 39 km/h. Winds could gust as high as 65 km/h.

    High: 8 °C

    Sunny and
    Breezy

  • Tonight

    Tonight: Increasing clouds, with a low around -2. Northwest wind 16 to 21 km/h decreasing to 5 to 10 km/h after midnight.

    Low: -2 °C

    Increasing
    Clouds

  • Sunday

    Sunday: Partly sunny, with a high near 8. Northeast wind 5 to 10 km/h becoming southeast 11 to 16 km/h in the afternoon.

    High: 8 °C

    Partly Sunny

  • Sunday Night

    Sunday Night: Rain after 2am. Temperature rising to around 9 by 5am. Southeast wind 10 to 16 km/h, with gusts as high as 37 km/h. Chance of precipitation is 80%. New precipitation amounts between 5 and 7.5 mm possible.

    Low: 6 °C⇑

    Mostly Cloudy
    then Rain

  • Monday

    Monday: Rain, with thunderstorms also possible after 11am. Some of the storms could produce heavy rainfall. High near 14. South wind 24 to 29 km/h, with gusts as high as 65 km/h. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 cm possible.

    High: 14 °C

    Heavy Rain

  • Monday Night

    Monday Night: Rain before 5am, then rain and snow likely. The rain could be heavy at times. Low around 1. Breezy. Chance of precipitation is 100%. Little or no snow accumulation expected.

    Low: 1 °C

    Breezy. Heavy
    Rain then
    Rain/Snow

  • Tuesday

    Tuesday: Rain and snow likely before 8am. Mostly cloudy, then gradually becoming sunny, with a high near 7. Chance of precipitation is 60%.

    High: 7 °C

    Rain/Snow
    Likely then
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around -5.

    Low: -5 °C

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 3.

    High: 3 °C

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 8. Breezy, with a west wind 16 to 26 km/h increasing to 29 to 39 km/h. Winds could gust as high as 65 km/h.
Tonight
Increasing clouds, with a low around -2. Northwest wind 16 to 21 km/h decreasing to 5 to 10 km/h after midnight.
Sunday
Partly sunny, with a high near 8. Northeast wind 5 to 10 km/h becoming southeast 11 to 16 km/h in the afternoon.
Sunday Night
Rain after 2am. Temperature rising to around 9 by 5am. Southeast wind 10 to 16 km/h, with gusts as high as 37 km/h. Chance of precipitation is 80%. New precipitation amounts between 5 and 7.5 mm possible.
Monday
Rain, with thunderstorms also possible after 11am. Some of the storms could produce heavy rainfall. High near 14. South wind 24 to 29 km/h, with gusts as high as 65 km/h. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 cm possible.
Monday Night
Rain before 5am, then rain and snow likely. The rain could be heavy at times. Low around 1. Breezy. Chance of precipitation is 100%. Little or no snow accumulation expected.
Tuesday
Rain and snow likely before 8am. Mostly cloudy, then gradually becoming sunny, with a high near 7. Chance of precipitation is 60%.
Tuesday Night
Mostly clear, with a low around -5.
Wednesday
Mostly sunny, with a high near 3.
Wednesday Night
Mostly cloudy, with a low around -2.
Thursday
Mostly sunny, with a high near 7.
Thursday Night
Partly cloudy, with a low around 1.
Friday
Mostly sunny, with a high near 8.
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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 m)
Last Update:
3:09 am EDT Mar 14, 2026
Forecast Valid:
5am EDT Mar 14, 2026-6pm EDT Mar 20, 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