Heavy Rainfall and Flooding Threats in the Midwest and Ohio Valley; Heat Continues in the Plains and Southeast

An active pattern will continue to bring heavy to excessive rainfall and flash flooding threats to the Midwest and Ohio Valley over the next couple of days. Dangerous heat continues across the central/southern Plains and Southeast U.S. into next week. There is potential for record-tying/breaking temperatures with many areas forecast to see their hottest temperatures so far this year. Read More >

Current conditions at

Watertown, Watertown International Airport (KART)

Lat: 43.99°NLon: 76.02°WElev: 325ft.

Fog/Mist

63°F

17°C

Humidity 100%
Wind Speed Calm
Barometer 29.81 in (1009.0 mb)
Dewpoint 63°F (17°C)
Visibility 4.00 mi
Last update 13 Aug 5:56 am EDT
Extended Forecast for

Watertown International Airport NY

  • Today

    Today: Patchy fog before 9am.  Otherwise, mostly sunny, with a high near 78. Light west wind increasing to 5 to 10 mph in the afternoon.

    High: 78 °F

    Patchy Fog
    then Sunny

  • Tonight

    Tonight: A chance of showers and thunderstorms, mainly before 7pm.  Patchy fog after midnight.  Otherwise, partly cloudy, with a low around 55. Light and variable wind.  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
    Patchy Fog

  • Friday

    Friday: Patchy fog before 9am.  Otherwise, sunny, with a high near 78. Calm wind becoming north 5 to 8 mph in the afternoon.

    High: 78 °F

    Patchy Fog
    then Sunny

  • Friday Night

    Friday Night: Patchy fog after midnight.  Otherwise, clear during the early evening, then becoming mostly cloudy, with a low around 52. Light northeast wind.

    Low: 52 °F

    Partly Cloudy
    then Patchy
    Fog

  • Saturday

    Saturday: Patchy fog before 9am.  Otherwise, sunny, with a high near 76. Calm wind becoming north around 6 mph in the afternoon.

    High: 76 °F

    Patchy Fog
    then Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 55. Light southeast wind.

    Low: 55 °F

    Partly Cloudy

  • Sunday

    Sunday: A chance of showers, then showers likely and possibly a thunderstorm after 2pm.  Partly sunny, with a high near 78. South wind 6 to 9 mph.  Chance of precipitation is 70%.

    High: 78 °F

    Chance
    Showers then
    Showers
    Likely

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am.  Mostly cloudy, with a low around 59. Southwest wind around 6 mph becoming light and variable  after midnight.  Chance of precipitation is 60%.

    Low: 59 °F

    Showers
    Likely

  • Monday

    Monday: Partly sunny, with a high near 77.

    High: 77 °F

    Partly Sunny

Detailed Forecast

Today
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 78. Light west wind increasing to 5 to 10 mph in the afternoon.
Tonight
A chance of showers and thunderstorms, mainly before 7pm. Patchy fog after midnight. Otherwise, partly cloudy, with a low around 55. Light and variable wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
Patchy fog before 9am. Otherwise, sunny, with a high near 78. Calm wind becoming north 5 to 8 mph in the afternoon.
Friday Night
Patchy fog after midnight. Otherwise, clear during the early evening, then becoming mostly cloudy, with a low around 52. Light northeast wind.
Saturday
Patchy fog before 9am. Otherwise, sunny, with a high near 76. Calm wind becoming north around 6 mph in the afternoon.
Saturday Night
Partly cloudy, with a low around 55. Light southeast wind.
Sunday
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 78. South wind 6 to 9 mph. Chance of precipitation is 70%.
Sunday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 59. Southwest wind around 6 mph becoming light and variable after midnight. Chance of precipitation is 60%.
Monday
Partly sunny, with a high near 77.
Monday Night
Partly cloudy, with a low around 55.
Tuesday
Sunny, with a high near 78.
Tuesday Night
Partly cloudy, with a low around 59.
Wednesday
Mostly sunny, with a high near 78.
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ABOUT THIS FORECAST

 
Point Forecast:
Watertown International Airport NY
 43.99°N 76.03°W (Elev. 299 ft)
5:14 am EDT Aug 13, 2026
6am EDT Aug 13, 2026-6pm EDT Aug 19, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database