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

Risks of Severe Thunderstorms and Excessive Rainfall; Fire Weather Concerns and Record Warmth

Severe thunderstorms and flash flooding risks increase across the center of the nation today. Meanwhile, ongoing thunderstorms and flash flooding will linger along the Gulf Coast states through the evening. The Great Basin and Intermountain West, warm temperatures and dry fuels with dry lightning may enhance fire weather potential. In addition, across interior Alaska, Red Flag Warning are posted. Read More >

Hazardous Weather Conditions

Current conditions at

Watertown, Watertown International Airport (KART)

Lat: 43.99°NLon: 76.02°WElev: 325ft.

Overcast

64°F

18°C

Humidity 68%
Wind Speed SW 13 mph
Barometer 29.79 in (1008.5 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Last update 20 Jun 2:56 pm EDT
Extended Forecast for

2 Miles S Henderson Harbor NY

  • This Afternoon

    This Afternoon: A chance of showers and thunderstorms. Partly sunny, with a high near 69. West wind around 15 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 69 °F

    Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 9pm. Partly cloudy, with a low around 55. West wind around 5 mph becoming light and variable in the evening. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 55 °F

    Chance
    Showers then
    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 72. Light southwest wind becoming west 5 to 10 mph in the morning.

    High: 72 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Increasing clouds, with a low around 57. Light south wind.

    Low: 57 °F

    Increasing
    Clouds

  • Monday

    Monday: A chance of showers. Mostly cloudy, with a high near 75. South wind around 6 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    High: 75 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A chance of showers before 2am. Mostly cloudy, with a low around 58. Light and variable wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 58 °F

    Chance
    Showers

  • Tuesday

    Tuesday: Mostly sunny, with a high near 77. North wind 6 to 9 mph becoming west in the afternoon.

    High: 77 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 58. Light west wind.

    Low: 58 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

Detailed Forecast

This Afternoon
A chance of showers and thunderstorms. Partly sunny, with a high near 69. West wind around 15 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 9pm. Partly cloudy, with a low around 55. West wind around 5 mph becoming light and variable in the evening. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
Mostly sunny, with a high near 72. Light southwest wind becoming west 5 to 10 mph in the morning.
Sunday Night
Increasing clouds, with a low around 57. Light south wind.
Monday
A chance of showers. Mostly cloudy, with a high near 75. South wind around 6 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
A chance of showers before 2am. Mostly cloudy, with a low around 58. Light and variable wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
Mostly sunny, with a high near 77. North wind 6 to 9 mph becoming west in the afternoon.
Tuesday Night
Partly cloudy, with a low around 58. Light west wind.
Wednesday
Sunny, with a high near 74.
Wednesday Night
Partly cloudy, with a low around 60.
Thursday
A chance of showers. Partly sunny, with a high near 79. Chance of precipitation is 50%.
Thursday Night
Showers likely. Mostly cloudy, with a low around 61. Chance of precipitation is 60%.
Friday
A chance of showers. Partly sunny, with a high near 76. Chance of precipitation is 50%.
Friday Night
A chance of showers. Mostly cloudy, with a low around 60. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 75.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles S Henderson Harbor NY
 43.83°N 76.15°W (Elev. 381 ft)
Last Update:
2:22 pm EDT Jun 20, 2026
Forecast Valid:
3pm EDT Jun 20, 2026-6pm EDT Jun 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