Severe Weather and Heavy Rainfall from the Midwest to the Ohio Valley; Mid-Summer Heat Continues

Severe thunderstorm and heavy rainfall threats will persist from the Midwest to Lower Great Lakes through Monday, shifting into the Ohio Valley and Central Appalachians Monday evening into Tuesday. Mid-summer heat will continue across much of the CONUS this week, with record highs possible well into the 100s across the south-central High Plains. Read More >

Hazardous Weather Conditions

Current conditions at

Watertown, Watertown International Airport (KART)

Lat: 43.99°NLon: 76.02°WElev: 325ft.

Fair

62°F

17°C

Humidity 93%
Wind Speed Calm
Barometer 30.02 in (1015.9 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 10 Aug 12:56 am EDT
Extended Forecast for

Watertown NY

  • Overnight

    Overnight: Mostly cloudy, with a low around 62. South wind around 6 mph.

    Low: 62 °F

    Mostly Cloudy

  • Monday

    Monday: Showers and possibly a thunderstorm before 4pm, then a chance of showers and thunderstorms between 4pm and 5pm, then showers likely and possibly a thunderstorm after 5pm.  High near 77. South wind 7 to 11 mph becoming southwest in the afternoon. Winds could gust as high as 21 mph.  Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 77 °F

    Showers

  • Monday Night

    Monday Night: Showers and thunderstorms likely before 11pm, then a chance of showers between 11pm and 2am.  Mostly cloudy, with a low around 61. Southwest wind 3 to 7 mph.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 61 °F

    Showers
    Likely then
    Chance
    Showers

  • Tuesday

    Tuesday: Mostly sunny, with a high near 77. Light west wind increasing to 5 to 9 mph in the morning.

    High: 77 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 58. Southwest wind around 5 mph becoming calm  in the evening.

    Low: 58 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 78. Light south wind becoming west 5 to 9 mph in the morning.

    High: 78 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm before 2am, then a chance of showers.  Mostly cloudy, with a low around 58. Calm wind.  Chance of precipitation is 60%.

    Low: 58 °F

    Showers
    Likely

  • Thursday

    Thursday: A chance of showers.  Partly sunny, with a high near 75. West wind 5 to 11 mph.  Chance of precipitation is 50%.

    High: 75 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 53.

    Low: 53 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 62. South wind around 6 mph.
Monday
Showers and possibly a thunderstorm before 4pm, then a chance of showers and thunderstorms between 4pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. High near 77. South wind 7 to 11 mph becoming southwest in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday Night
Showers and thunderstorms likely before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 61. Southwest wind 3 to 7 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
Mostly sunny, with a high near 77. Light west wind increasing to 5 to 9 mph in the morning.
Tuesday Night
Partly cloudy, with a low around 58. Southwest wind around 5 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 78. Light south wind becoming west 5 to 9 mph in the morning.
Wednesday Night
Showers likely and possibly a thunderstorm before 2am, then a chance of showers. Mostly cloudy, with a low around 58. Calm wind. Chance of precipitation is 60%.
Thursday
A chance of showers. Partly sunny, with a high near 75. West wind 5 to 11 mph. Chance of precipitation is 50%.
Thursday Night
Partly cloudy, with a low around 53.
Friday
Sunny, with a high near 72.
Friday Night
Mostly clear, with a low around 53.
Saturday
Sunny, with a high near 74.
Saturday Night
Partly cloudy, with a low around 54.
Sunday
Mostly sunny, with a high near 76.
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ABOUT THIS FORECAST

 
Point Forecast:
Watertown NY
 43.98°N 75.91°W (Elev. 449 ft)
9:58 pm EDT Aug 9, 2026
1am EDT Aug 10, 2026-6pm EDT Aug 16, 2026
 
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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