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 97%
Wind Speed S 3 mph
Barometer 29.85 in (1010.7 mb)
Dewpoint 57°F (14°C)
Visibility 7.00 mi
Last update 12 Oct 8:56 pm EDT
Extended Forecast for

2 Miles WSW Henderson Harbor NY

  • Tonight

    Tonight: A chance of showers, then showers likely and possibly a thunderstorm after 5am. Cloudy, with a low around 52. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 52 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Tuesday

    Tuesday: Showers and possibly a thunderstorm. High near 66. South wind 6 to 9 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 66 °F

    Showers

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm before 11pm, then a chance of showers between 11pm and 2am. Low around 51. East wind 5 to 7 mph becoming west in the evening. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 51 °F

    Showers then
    Chance
    Showers

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 60. West wind 6 to 9 mph.

    High: 60 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 44. North wind 7 to 9 mph.

    Low: 44 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 54. North wind 6 to 9 mph.

    High: 54 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Showers likely after 2am. Mostly cloudy, with a low around 43. Calm wind becoming southeast 5 to 7 mph in the evening. Chance of precipitation is 70%.

    Low: 43 °F

    Mostly Cloudy
    then Showers
    Likely

  • Friday

    Friday: Showers. High near 58. South wind 11 to 18 mph becoming west in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 90%.

    High: 58 °F

    Showers

  • Friday Night

    Friday Night: Showers likely, mainly before 2am. Mostly cloudy, with a low around 36. Breezy. Chance of precipitation is 60%.

    Low: 36 °F

    Showers
    Likely and
    Breezy

Detailed Forecast

Tonight
A chance of showers, then showers likely and possibly a thunderstorm after 5am. Cloudy, with a low around 52. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
Showers and possibly a thunderstorm. High near 66. South wind 6 to 9 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Tuesday Night
Showers and possibly a thunderstorm before 11pm, then a chance of showers between 11pm and 2am. Low around 51. East wind 5 to 7 mph becoming west in the evening. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
Mostly cloudy, with a high near 60. West wind 6 to 9 mph.
Wednesday Night
Mostly cloudy, with a low around 44. North wind 7 to 9 mph.
Thursday
Mostly sunny, with a high near 54. North wind 6 to 9 mph.
Thursday Night
Showers likely after 2am. Mostly cloudy, with a low around 43. Calm wind becoming southeast 5 to 7 mph in the evening. Chance of precipitation is 70%.
Friday
Showers. High near 58. South wind 11 to 18 mph becoming west in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 90%.
Friday Night
Showers likely, mainly before 2am. Mostly cloudy, with a low around 36. Breezy. Chance of precipitation is 60%.
Saturday
A chance of showers before 8am. Partly sunny, with a high near 47. Breezy. Chance of precipitation is 30%.
Saturday Night
Partly cloudy, with a low around 35.
Sunday
Mostly sunny, with a high near 51.
Sunday Night
Partly cloudy, with a low around 40.
Monday
Mostly sunny, with a high near 58.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WSW Henderson Harbor NY
 43.85°N 76.18°W (Elev. 400 ft)
Last Update:
7:57 pm EDT Oct 12, 2026
Forecast Valid:
9pm EDT Oct 12, 2026-6pm EDT Oct 19, 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