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.

A Few Clouds

75°F

24°C

Humidity 40%
Wind Speed SW 15 G 23 mph
Barometer 29.80 in (1008.8 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Last update 16 May 3:56 pm EDT
Extended Forecast for

Watertown NY

  • This Afternoon

    This Afternoon: Showers and possibly a thunderstorm. High near 75. Southwest wind 13 to 15 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 75 °F

    Showers

  • Tonight

    Tonight: Showers and thunderstorms likely before 9pm, then a slight chance of showers between 9pm and 10pm. Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 51. Southwest wind 9 to 13 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 51 °F

    Showers
    Likely then
    Patchy Fog

  • Sunday

    Sunday: Mostly sunny, with a high near 72. West wind 7 to 9 mph.

    High: 72 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A slight chance of showers after 2am. Increasing clouds, with a low around 52. Calm wind becoming east around 5 mph after midnight. Chance of precipitation is 20%.

    Low: 52 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Monday

    Monday: Mostly sunny, with a high near 86. Southeast wind 5 to 11 mph becoming southwest in the afternoon.

    High: 86 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 64. South wind 8 to 10 mph. Chance of precipitation is 40%.

    Low: 64 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers after 2pm. Mostly sunny, with a high near 81. Southwest wind 10 to 13 mph. Chance of precipitation is 30%.

    High: 81 °F

    Mostly Sunny
    then Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then showers likely after 2am. Mostly cloudy, with a low around 61. Southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.

    Low: 61 °F

    Showers
    Likely

  • Wednesday

    Wednesday: A chance of showers before 2pm. Partly sunny, with a high near 69. Chance of precipitation is 50%.

    High: 69 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Showers and possibly a thunderstorm. High near 75. Southwest wind 13 to 15 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and thunderstorms likely before 9pm, then a slight chance of showers between 9pm and 10pm. Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 51. Southwest wind 9 to 13 mph. Chance of precipitation is 60%. 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. West wind 7 to 9 mph.
Sunday Night
A slight chance of showers after 2am. Increasing clouds, with a low around 52. Calm wind becoming east around 5 mph after midnight. Chance of precipitation is 20%.
Monday
Mostly sunny, with a high near 86. Southeast wind 5 to 11 mph becoming southwest in the afternoon.
Monday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 64. South wind 8 to 10 mph. Chance of precipitation is 40%.
Tuesday
A chance of showers after 2pm. Mostly sunny, with a high near 81. Southwest wind 10 to 13 mph. Chance of precipitation is 30%.
Tuesday Night
A chance of showers before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then showers likely after 2am. Mostly cloudy, with a low around 61. Southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Wednesday
A chance of showers before 2pm. Partly sunny, with a high near 69. Chance of precipitation is 50%.
Wednesday Night
Mostly cloudy, with a low around 43.
Thursday
Partly sunny, with a high near 59.
Thursday Night
Partly cloudy, with a low around 42.
Friday
Mostly sunny, with a high near 66.
Friday Night
Partly cloudy, with a low around 46.
Saturday
Mostly sunny, with a high near 66.
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ABOUT THIS FORECAST

 
Point Forecast:
Watertown NY
 44°N 75.91°W (Elev. 443 ft)
Last Update:
3:57 pm EDT May 16, 2026
Forecast Valid:
4pm EDT May 16, 2026-6pm EDT May 23, 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