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

Areas of Severe Thunderstorms and Heat

Scattered severe thunderstorms and excessive rainfall are possible today in the Mid Atlantic, posing a risk for damaging winds and isolated flash flooding. Extreme Heat Warnings are in effect today for northeast Texas into southern Oklahoma and Arkansas. Extreme Heat Warnings are also in effect for the Desert Southwest today into Sunday. Read More >

Current conditions at

Watertown, Watertown International Airport (KART)

Lat: 43.99°NLon: 76.02°WElev: 325ft.

Fair

70°F

21°C

Humidity 61%
Wind Speed Calm
Barometer 30.05 in (1017.2 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 20 Aug 2:56 pm EDT
Extended Forecast for

Cape Vincent NY

  • Tonight

    Tonight: Mostly clear, with a low around 57. Calm wind becoming northeast around 6 mph in the evening.

    Low: 57 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 77. Northeast wind 3 to 5 mph.

    High: 77 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 60. Calm wind becoming northeast around 6 mph in the evening.

    Low: 60 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 79. South wind 5 to 8 mph.

    High: 79 °F

    Sunny

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm, then showers after 2am. Low around 63. South wind 5 to 9 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 63 °F

    Showers

  • Sunday

    Sunday: Showers and possibly a thunderstorm. High near 74. Southwest wind 11 to 14 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 74 °F

    Showers

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 56. West wind around 10 mph. Chance of precipitation is 60%.

    Low: 56 °F

    Showers
    Likely

  • Monday

    Monday: A chance of showers. Partly sunny, with a high near 68. West wind 10 to 15 mph. Chance of precipitation is 50%.

    High: 68 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 55.

    Low: 55 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 57. Calm wind becoming northeast around 6 mph in the evening.
Friday
Sunny, with a high near 77. Northeast wind 3 to 5 mph.
Friday Night
Mostly clear, with a low around 60. Calm wind becoming northeast around 6 mph in the evening.
Saturday
Sunny, with a high near 79. South wind 5 to 8 mph.
Saturday Night
Showers likely and possibly a thunderstorm, then showers after 2am. Low around 63. South wind 5 to 9 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
Showers and possibly a thunderstorm. High near 74. Southwest wind 11 to 14 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 56. West wind around 10 mph. Chance of precipitation is 60%.
Monday
A chance of showers. Partly sunny, with a high near 68. West wind 10 to 15 mph. Chance of precipitation is 50%.
Monday Night
Mostly cloudy, with a low around 55.
Tuesday
Mostly sunny, with a high near 71.
Tuesday Night
Partly cloudy, with a low around 58.
Wednesday
Mostly sunny, with a high near 73.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 62. Chance of precipitation is 30%.
Thursday
A chance of showers. Mostly sunny, with a high near 74. Chance of precipitation is 30%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Cape Vincent NY
 44.13°N 76.34°W (Elev. 246 ft)
Last Update:
2:22 pm EDT Aug 20, 2026
Forecast Valid:
3pm EDT Aug 20, 2026-6pm EDT Aug 27, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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