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

Thunderstorms and Heavy Rainfall in the Plains; Hazardous Heat in the South and Southeast

Severe thunderstorms will be possible across the northern/central Plains through Tuesday afternoon and from the central Plains to the Mid-Mississippi Valley Tuesday evening through Wednesday morning. Storms may produce large hail and damaging wind gusts, and heavy rainfall may lead to scattered instances of flash flooding. Meanwhile, hazardous heat persists across the South and Southeast. Read More >

Current conditions at

Watertown, Watertown International Airport (KART)

Lat: 43.99°NLon: 76.02°WElev: 325ft.

Fog

60°F

16°C

Humidity 96%
Wind Speed Calm
Barometer 29.89 in (1011.9 mb)
Dewpoint 59°F (15°C)
Visibility 0.50 mi
Last update 17 Aug 11:56 pm EDT
Extended Forecast for

Clayton NYSimilar City Names

  • Overnight

    Overnight: Partly cloudy, with a low around 60. North wind around 5 mph.

    Low: 60 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Patchy fog before 7am. Otherwise, mostly sunny, with a high near 79. Calm wind becoming west 5 to 7 mph in the afternoon.

    High: 79 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers, mainly after 5am. Mostly cloudy, with a low around 63. South wind around 6 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 63 °F

    Partly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: Showers, with thunderstorms also possible after 2pm. High near 75. Southwest wind 7 to 10 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 75 °F

    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 56. Southwest wind around 5 mph becoming calm 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: 56 °F

    Chance
    Showers then
    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 76. Calm wind becoming west 5 to 7 mph in the afternoon.

    High: 76 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 55. Southwest wind around 5 mph becoming calm in the evening.

    Low: 55 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 77. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 77 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 58.

    Low: 58 °F

    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 60. North wind around 5 mph.
Tuesday
Patchy fog before 7am. Otherwise, mostly sunny, with a high near 79. Calm wind becoming west 5 to 7 mph in the afternoon.
Tuesday Night
A chance of showers, mainly after 5am. Mostly cloudy, with a low around 63. South wind around 6 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Showers, with thunderstorms also possible after 2pm. High near 75. Southwest wind 7 to 10 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 56. Southwest wind around 5 mph becoming calm 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.
Thursday
Sunny, with a high near 76. Calm wind becoming west 5 to 7 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 55. Southwest wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 77. Calm wind becoming southwest around 6 mph in the afternoon.
Friday Night
Mostly clear, with a low around 58.
Saturday
A chance of showers after 2pm. Mostly sunny, with a high near 79. Chance of precipitation is 30%.
Saturday Night
Showers likely. Mostly cloudy, with a low around 60. Chance of precipitation is 60%.
Sunday
Showers likely. Mostly cloudy, with a high near 75. Chance of precipitation is 70%.
Sunday Night
Showers likely. Mostly cloudy, with a low around 58. Chance of precipitation is 60%.
Monday
A chance of showers. Partly sunny, with a high near 72. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
Clayton NYSimilar City Names
 44.23°N 76.08°W (Elev. 256 ft)
Last Update:
9:57 pm EDT Aug 17, 2026
Forecast Valid:
12am EDT Aug 18, 2026-6pm EDT Aug 24, 2026
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation