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

Watertown, Watertown International Airport (KART)

Lat: 43.99°NLon: 76.02°WElev: 325ft.

A Few Clouds

64°F

18°C

Humidity 96%
Wind Speed Calm
Barometer 30.21 in (1022.9 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 17 Sep 9:56 am EDT
Extended Forecast for

4 Miles W Henderson Harbor NY

  • Today

    Today: Cloudy, with a high near 72. Calm wind becoming northwest 5 to 7 mph in the afternoon.

    High: 72 °F

    Cloudy

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 59. North wind 3 to 6 mph.

    Low: 59 °F

    Decreasing
    Clouds

  • Friday

    Friday: Mostly sunny, with a high near 68. North wind 9 to 11 mph.

    High: 68 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 49. Northeast wind 8 to 10 mph.

    Low: 49 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 64. Northeast wind 3 to 8 mph.

    High: 64 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Showers likely, mainly after 2am. Mostly cloudy, with a low around 54. Southeast wind 5 to 7 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 54 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Sunday

    Sunday: Showers likely, mainly before 8am. Mostly cloudy, with a high near 65. North wind 9 to 11 mph. Chance of precipitation is 60%.

    High: 65 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 51. North wind 9 to 13 mph.

    Low: 51 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 63.

    High: 63 °F

    Mostly Sunny

Detailed Forecast

Today
Cloudy, with a high near 72. Calm wind becoming northwest 5 to 7 mph in the afternoon.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 59. North wind 3 to 6 mph.
Friday
Mostly sunny, with a high near 68. North wind 9 to 11 mph.
Friday Night
Mostly cloudy, with a low around 49. Northeast wind 8 to 10 mph.
Saturday
Mostly sunny, with a high near 64. Northeast wind 3 to 8 mph.
Saturday Night
Showers likely, mainly after 2am. Mostly cloudy, with a low around 54. Southeast wind 5 to 7 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday
Showers likely, mainly before 8am. Mostly cloudy, with a high near 65. North wind 9 to 11 mph. Chance of precipitation is 60%.
Sunday Night
Partly cloudy, with a low around 51. North wind 9 to 13 mph.
Monday
Mostly sunny, with a high near 63.
Monday Night
Mostly cloudy, with a low around 50.
Tuesday
Mostly sunny, with a high near 65.
Tuesday Night
Partly cloudy, with a low around 52.
Wednesday
A chance of showers. Partly sunny, with a high near 67. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles W Henderson Harbor NY
 43.88°N 76.23°W (Elev. 322 ft)
Last Update:
9:57 am EDT Sep 17, 2026
Forecast Valid:
10am EDT Sep 17, 2026-6pm EDT Sep 23, 2026
 
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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