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

43°F

6°C

Humidity 89%
Wind Speed Calm
Barometer 29.88 in (1012.1 mb)
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Last update 30 Apr 9:56 pm EDT
Extended Forecast for

2 Miles WSW Henderson Harbor NY

  • Tonight

    Tonight: Mostly cloudy, with a low around 37. West wind around 6 mph becoming calm after midnight.

    Low: 37 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 49. Calm wind becoming west 5 to 8 mph in the morning.

    High: 49 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Areas of frost after 4am. Otherwise, partly cloudy, with a low around 36. Southwest wind 3 to 5 mph.

    Low: 36 °F

    Partly Cloudy
    then Areas
    Frost

  • Saturday

    Saturday: Areas of frost before 8am. Otherwise, mostly sunny, with a high near 48. West wind 6 to 10 mph.

    High: 48 °F

    Areas Frost
    then Sunny

  • Saturday Night

    Saturday Night: Areas of frost after 4am. Otherwise, partly cloudy, with a low around 35. Southwest wind around 5 mph.

    Low: 35 °F

    Partly Cloudy
    then Areas
    Frost

  • Sunday

    Sunday: Areas of frost before 7am. Otherwise, sunny, with a high near 49. West wind 6 to 13 mph.

    High: 49 °F

    Areas Frost
    then Sunny

  • Sunday Night

    Sunday Night: A chance of showers after 2am. Partly cloudy, with a low around 40. South wind 7 to 10 mph. Chance of precipitation is 30%.

    Low: 40 °F

    Partly Cloudy
    then Chance
    Showers

  • Monday

    Monday: A chance of showers. Mostly cloudy, with a high near 57. Southwest wind 11 to 14 mph. Chance of precipitation is 50%.

    High: 57 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A chance of showers. Mostly cloudy, with a low around 47. Chance of precipitation is 50%.

    Low: 47 °F

    Chance
    Showers

Detailed Forecast

Tonight
Mostly cloudy, with a low around 37. West wind around 6 mph becoming calm after midnight.
Friday
Mostly sunny, with a high near 49. Calm wind becoming west 5 to 8 mph in the morning.
Friday Night
Areas of frost after 4am. Otherwise, partly cloudy, with a low around 36. Southwest wind 3 to 5 mph.
Saturday
Areas of frost before 8am. Otherwise, mostly sunny, with a high near 48. West wind 6 to 10 mph.
Saturday Night
Areas of frost after 4am. Otherwise, partly cloudy, with a low around 35. Southwest wind around 5 mph.
Sunday
Areas of frost before 7am. Otherwise, sunny, with a high near 49. West wind 6 to 13 mph.
Sunday Night
A chance of showers after 2am. Partly cloudy, with a low around 40. South wind 7 to 10 mph. Chance of precipitation is 30%.
Monday
A chance of showers. Mostly cloudy, with a high near 57. Southwest wind 11 to 14 mph. Chance of precipitation is 50%.
Monday Night
A chance of showers. Mostly cloudy, with a low around 47. Chance of precipitation is 50%.
Tuesday
A chance of showers. Partly sunny, with a high near 59. Chance of precipitation is 50%.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 46. Chance of precipitation is 40%.
Wednesday
Showers likely. Mostly cloudy, with a high near 58. Chance of precipitation is 70%.
Wednesday Night
Showers likely. Mostly cloudy, with a low around 41. Chance of precipitation is 60%.
Thursday
Showers likely. Mostly cloudy, with a high near 54. Chance of precipitation is 60%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WSW Henderson Harbor NY
 43.85°N 76.18°W (Elev. 400 ft)
Last Update:
9:57 pm EDT Apr 30, 2026
Forecast Valid:
10pm EDT Apr 30, 2026-6pm EDT May 7, 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