Thunderstorms and Heavy Rain in the Mid-South; Heat Continues in the Southeast and Southwest

Severe thunderstorms and heavy rain are expected across portions of the mid-Mississippi Valley into the Ohio Valley and portions of Arizona. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that, when combined with oppressive dew points, little-to-no relief from the scorching daytime highs will be available. Read More >

Current conditions at

Watertown, Watertown International Airport (KART)

Lat: 43.99°NLon: 76.02°WElev: 325ft.

Fair

66°F

19°C

Humidity 87%
Wind Speed S 5 mph
Barometer 29.90 in (1012.2 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 18 Aug 9:56 pm EDT
Extended Forecast for

Belleville NY

  • Tonight

    Tonight: Mostly cloudy, with a low around 60. South wind 3 to 5 mph.

    Low: 60 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Showers and thunderstorms likely, mainly before 4pm, then a slight chance of thunderstorms after 5pm.  Mostly cloudy, with a high near 75. South wind 8 to 11 mph becoming west in the afternoon.  Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 75 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A slight chance of showers between 11pm and 2am.  Partly cloudy, with a low around 58. Southwest wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 20%.

    Low: 58 °F

    Slight Chance
    Showers

  • Thursday

    Thursday: Sunny, with a high near 74. Calm wind becoming west 5 to 9 mph in the morning.

    High: 74 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 55. Light and variable wind.

    Low: 55 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 77. Light and variable wind becoming west around 6 mph in the afternoon.

    High: 77 °F

    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 80. South wind 8 to 10 mph.  Chance of precipitation is 30%.

    High: 80 °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 90%.

    Low: 61 °F

    Showers

Detailed Forecast

Tonight
Mostly cloudy, with a low around 60. South wind 3 to 5 mph.
Wednesday
Showers and thunderstorms likely, mainly before 4pm, then a slight chance of thunderstorms after 5pm. Mostly cloudy, with a high near 75. South wind 8 to 11 mph becoming west in the afternoon. 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. Partly cloudy, with a low around 58. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.
Thursday
Sunny, with a high near 74. Calm wind becoming west 5 to 9 mph in the morning.
Thursday Night
Mostly clear, with a low around 55. Light and variable wind.
Friday
Sunny, with a high near 77. Light and variable wind becoming west 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 80. South wind 8 to 10 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 90%.
Sunday
Showers, with thunderstorms also possible after 2pm. High near 74. Chance of precipitation is 80%.
Sunday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 57. Chance of precipitation is 70%.
Monday
A chance of showers. Partly sunny, with a high near 71. Chance of precipitation is 40%.
Monday Night
A chance of showers. Partly cloudy, with a low around 57. Chance of precipitation is 30%.
Tuesday
Mostly sunny, with a high near 74.
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ABOUT THIS FORECAST

 
Point Forecast:
Belleville NY
 43.78°N 76.1°W (Elev. 499 ft)
9:57 pm EDT Aug 18, 2026
10pm EDT Aug 18, 2026-6pm EDT Aug 25, 2026
 
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Additional Resources

Radar & Satellite Image

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