Severe Thunderstorms in the Central Plains and Lower Missouri Valley; Heat Continues in the Southeast and Southwest

Severe thunderstorms capable of large hail and damaging wind gusts are forecast to impact the central Plains into the Lower Missouri Valley through this afternoon. Dangerous heat persists across the southern Plains, Southeast U.S. and Puerto Rico this week, and will return to the Southwest today. Read More >

Current conditions at

Watertown, Watertown International Airport (KART)

Lat: 43.99°NLon: 76.02°WElev: 325ft.

Fair

69°F

21°C

Humidity 78%
Wind Speed S 3 mph
Barometer 29.89 in (1012.0 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 18 Aug 7:56 pm EDT
Extended Forecast for

4 Miles SE Watertown NY

  • Tonight

    Tonight: Mostly cloudy, with a low around 61. West wind 5 to 7 mph becoming south after midnight.

    Low: 61 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm before 2pm, then a chance of showers and thunderstorms between 2pm and 5pm, then a chance of thunderstorms after 5pm.  Mostly cloudy, then gradually becoming sunny, with a high near 74. South wind 9 to 11 mph.  Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 74 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A slight chance of showers between 11pm and 2am.  Patchy fog after 10pm.  Otherwise, partly cloudy, with a low around 56. Southwest wind around 6 mph becoming calm  after midnight.  Chance of precipitation is 20%.

    Low: 56 °F

    Slight Chance
    Showers and
    Patchy Fog

  • Thursday

    Thursday: Patchy fog before 9am.  Otherwise, sunny, with a high near 73. Light southwest wind becoming west 5 to 9 mph in the morning.

    High: 73 °F

    Patchy Fog
    then Sunny

  • Thursday Night

    Thursday Night: Patchy fog after 11pm.  Otherwise, mostly clear, with a low around 54. Light and variable wind.

    Low: 54 °F

    Patchy Fog

  • Friday

    Friday: Patchy fog before 9am.  Otherwise, sunny, with a high near 76. Light and variable wind becoming northwest around 6 mph in the afternoon.

    High: 76 °F

    Patchy Fog
    then Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 59. Calm wind becoming southeast around 6 mph after midnight.

    Low: 59 °F

    Mostly Clear

  • Saturday

    Saturday: A chance of showers after 2pm.  Mostly sunny, with a high near 79. South wind around 9 mph.  Chance of precipitation is 30%.

    High: 79 °F

    Mostly Sunny
    then Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then showers after 2am.  Low around 61. Chance of precipitation is 80%.

    Low: 61 °F

    Showers

Detailed Forecast

Tonight
Mostly cloudy, with a low around 61. West wind 5 to 7 mph becoming south after midnight.
Wednesday
Showers likely and possibly a thunderstorm before 2pm, then a chance of showers and thunderstorms between 2pm and 5pm, then a chance of thunderstorms after 5pm. Mostly cloudy, then gradually becoming sunny, with a high near 74. South wind 9 to 11 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A slight chance of showers between 11pm and 2am. Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 56. Southwest wind around 6 mph becoming calm after midnight. Chance of precipitation is 20%.
Thursday
Patchy fog before 9am. Otherwise, sunny, with a high near 73. Light southwest wind becoming west 5 to 9 mph in the morning.
Thursday Night
Patchy fog after 11pm. Otherwise, mostly clear, with a low around 54. Light and variable wind.
Friday
Patchy fog before 9am. Otherwise, sunny, with a high near 76. Light and variable wind becoming northwest around 6 mph in the afternoon.
Friday Night
Mostly clear, with a low around 59. Calm wind becoming southeast around 6 mph after midnight.
Saturday
A chance of showers after 2pm. Mostly sunny, with a high near 79. South wind around 9 mph. Chance of precipitation is 30%.
Saturday Night
A chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then showers after 2am. Low around 61. Chance of precipitation is 80%.
Sunday
Showers, with thunderstorms also possible after 2pm. High near 72. Chance of precipitation is 80%.
Sunday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 56. Chance of precipitation is 60%.
Monday
A chance of showers. Partly sunny, with a high near 70. Chance of precipitation is 40%.
Monday Night
Partly cloudy, with a low around 57.
Tuesday
Mostly sunny, with a high near 73.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SE Watertown NY
 43.93°N 75.86°W (Elev. 856 ft)
3:57 pm EDT Aug 18, 2026
7pm EDT Aug 18, 2026-6pm EDT Aug 25, 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