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.

Overcast

58°F

14°C

Humidity 84%
Wind Speed W 13 mph
Barometer 29.92 in (1012.9 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Last update 14 Oct 12:56 pm EDT
Extended Forecast for

Henderson Harbor NY

  • This Afternoon

    This Afternoon: A chance of showers, mainly before 2pm. Mostly cloudy, with a high near 59. West wind 11 to 14 mph. Chance of precipitation is 30%.

    High: 59 °F

    Chance
    Showers

  • Tonight

    Tonight: Mostly cloudy, with a low around 42. Northwest wind around 11 mph becoming south after midnight.

    Low: 42 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 54. Northeast wind 7 to 10 mph.

    High: 54 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Showers, mainly after 2am. Low around 44. Northeast wind 5 to 9 mph becoming southeast after midnight. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 44 °F

    Slight Chance
    Showers then
    Showers

  • Friday

    Friday: Showers and possibly a thunderstorm. High near 57. Southeast wind 13 to 17 mph becoming west in the afternoon. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 57 °F

    Showers

  • Friday Night

    Friday Night: A chance of showers, mainly before 2am. Mostly cloudy, with a low around 35. Breezy, with a northwest wind 18 to 23 mph, with gusts as high as 33 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 35 °F

    Chance
    Showers and
    Breezy

  • Saturday

    Saturday: Mostly sunny, with a high near 47. Northwest wind 16 to 18 mph, with gusts as high as 30 mph.

    High: 47 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 36. West wind 9 to 14 mph.

    Low: 36 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 54.

    High: 54 °F

    Sunny

Detailed Forecast

This Afternoon
A chance of showers, mainly before 2pm. Mostly cloudy, with a high near 59. West wind 11 to 14 mph. Chance of precipitation is 30%.
Tonight
Mostly cloudy, with a low around 42. Northwest wind around 11 mph becoming south after midnight.
Thursday
Mostly sunny, with a high near 54. Northeast wind 7 to 10 mph.
Thursday Night
Showers, mainly after 2am. Low around 44. Northeast wind 5 to 9 mph becoming southeast after midnight. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Showers and possibly a thunderstorm. High near 57. Southeast wind 13 to 17 mph becoming west in the afternoon. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Friday Night
A chance of showers, mainly before 2am. Mostly cloudy, with a low around 35. Breezy, with a northwest wind 18 to 23 mph, with gusts as high as 33 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Mostly sunny, with a high near 47. Northwest wind 16 to 18 mph, with gusts as high as 30 mph.
Saturday Night
Partly cloudy, with a low around 36. West wind 9 to 14 mph.
Sunday
Sunny, with a high near 54.
Sunday Night
Mostly clear, with a low around 41.
Monday
Mostly sunny, with a high near 59.
Monday Night
Mostly cloudy, with a low around 45.
Tuesday
Mostly sunny, with a high near 59.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Henderson Harbor NY
 43.87°N 76.15°W (Elev. 400 ft)
Last Update:
11:53 am EDT Oct 14, 2026
Forecast Valid:
1pm EDT Oct 14, 2026-6pm EDT Oct 20, 2026
 
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