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.

Fair

1°C

34°F

Humidity 59%
Wind Speed SW 11 km/h
Barometer 1026.4 mb (30.30 in)
Dewpoint -6°C (21°F)
Visibility 16 km
Wind Chill-2°C (28°F)
Last update 20 Apr 8:56 pm EDT
Extended Forecast for

Henderson Harbor NY

  • Tonight

    Tonight: Partly cloudy, with a low around -6. Southwest wind 8 to 13 km/h.

    Low: -6 °C

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 9. South wind 13 to 16 km/h.

    High: 9 °C

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 4. South wind 13 to 16 km/h.

    Low: 4 °C

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 13. Southeast wind 8 to 10 km/h becoming northwest in the afternoon.

    High: 13 °C

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 3. Calm wind.

    Low: 3 °C

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 12. North wind 5 to 10 km/h becoming west in the afternoon.

    High: 12 °C

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 4. Calm wind becoming northeast 5 to 8 km/h after midnight.

    Low: 4 °C

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 15. North wind around 10 km/h.

    High: 15 °C

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 6.

    Low: 6 °C

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around -6. Southwest wind 8 to 13 km/h.
Tuesday
Mostly cloudy, with a high near 9. South wind 13 to 16 km/h.
Tuesday Night
Mostly cloudy, with a low around 4. South wind 13 to 16 km/h.
Wednesday
Mostly sunny, with a high near 13. Southeast wind 8 to 10 km/h becoming northwest in the afternoon.
Wednesday Night
Mostly clear, with a low around 3. Calm wind.
Thursday
Mostly sunny, with a high near 12. North wind 5 to 10 km/h becoming west in the afternoon.
Thursday Night
Mostly cloudy, with a low around 4. Calm wind becoming northeast 5 to 8 km/h after midnight.
Friday
Mostly sunny, with a high near 15. North wind around 10 km/h.
Friday Night
Partly cloudy, with a low around 6.
Saturday
A chance of showers after 8am. Partly sunny, with a high near 15. Chance of precipitation is 50%.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 6. Chance of precipitation is 40%.
Sunday
A chance of showers. Partly sunny, with a high near 14. Chance of precipitation is 30%.
Sunday Night
Mostly cloudy, with a low around 6.
Monday
A chance of showers. Partly sunny, with a high near 16. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Henderson Harbor NY
 43.87°N 76.15°W (Elev. 400 m)
Last Update:
7:57 pm EDT Apr 20, 2026
Forecast Valid:
9pm EDT Apr 20, 2026-6pm EDT Apr 27, 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