Heavy to Excessive Rainfall and Flooding Threats in the Central and Eastern U.S.; Heat and Fire Weather Concerns in the West

Thunderstorms producing excessive rainfall and potential flooding concerns will continue through tonight from the Southern Plains to the East Coast. Areas of greatest concern for flooding are over central Texas and the Mid-Atlantic. Heat will continue to build across the West through Tuesday. Heat Advisories and Extreme Heat Warnings are in effect. Fire Weather concerns continue through Monday. Read More >

Current conditions at

Watertown, Watertown Municipal Airport (KATY)

Lat: 44.9°NLon: 97.15°WElev: 1745ft.

Fair

78°F

26°C

Humidity 71%
Wind Speed N 8 mph
Barometer 29.94 in (1012.7 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 13 Jul 8:53 pm CDT
Extended Forecast for

Watertown SD

  • Tonight

    Tonight: Mostly clear, with a low around 61. Light and variable wind.

    Low: 61 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 88. Light south southeast wind becoming south 8 to 13 mph in the morning.

    High: 88 °F

    Sunny

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms after midnight.  Increasing clouds, with a low around 69. South southeast wind around 14 mph, with gusts as high as 25 mph.  Chance of precipitation is 20%.

    Low: 69 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Tuesday

    Tuesday: A slight chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 1pm, then a chance of showers and thunderstorms after 1pm.  Partly sunny, with a high near 85. South wind 10 to 13 mph becoming north northwest in the afternoon. Winds could gust as high as 21 mph.  Chance of precipitation is 50%.

    High: 85 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm.  Low around 60. North northeast wind 10 to 14 mph, with gusts as high as 23 mph.  Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible.

    Low: 60 °F

    Showers

  • Wednesday

    Wednesday: A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm, then a chance of showers and thunderstorms after 1pm.  Mostly cloudy, with a high near 68. North northeast wind 11 to 15 mph, with gusts as high as 25 mph.  Chance of precipitation is 40%.

    High: 68 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 54. North northeast wind 9 to 15 mph, with gusts as high as 24 mph.  Chance of precipitation is 40%.

    Low: 54 °F

    Chance
    Showers

  • Thursday

    Thursday: Partly sunny, with a high near 71. Northeast wind around 9 mph.

    High: 71 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 54. East northeast wind 6 to 9 mph becoming southeast after midnight.

    Low: 54 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 61. Light and variable wind.
Monday
Sunny, with a high near 88. Light south southeast wind becoming south 8 to 13 mph in the morning.
Monday Night
A slight chance of showers and thunderstorms after midnight. Increasing clouds, with a low around 69. South southeast wind around 14 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Tuesday
A slight chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 85. South wind 10 to 13 mph becoming north northwest in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 50%.
Tuesday Night
Showers and possibly a thunderstorm. Low around 60. North northeast wind 10 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible.
Wednesday
A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 68. North northeast wind 11 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 54. North northeast wind 9 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 40%.
Thursday
Partly sunny, with a high near 71. Northeast wind around 9 mph.
Thursday Night
Partly cloudy, with a low around 54. East northeast wind 6 to 9 mph becoming southeast after midnight.
Friday
A slight chance of showers before 1pm. Partly sunny, with a high near 75. Chance of precipitation is 20%.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 60. Chance of precipitation is 40%.
Saturday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 78. Chance of precipitation is 20%.
Saturday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 60. Chance of precipitation is 20%.
Sunday
Mostly sunny, with a high near 79.
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ABOUT THIS FORECAST

 
Point Forecast:
Watertown SD
 44.91°N 97.14°W (Elev. 1736 ft)
8:48 pm CDT Jul 13, 2025
9pm CDT Jul 13, 2025-6pm CDT Jul 20, 2025
 
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