Severe Thunderstorms and Heavy Rain Across the Ohio Valley;

Severe thunderstorms with damaging wind gusts will be possible from the mid-Mississippi Valley into parts of the Ohio Valley and central Appalachians. Heavy rain associated with these storms may lead to considerable flash and urban flooding impacts across portions of the Ohio Valley. Mid-summer heat persists from the Central Plains to the Southeast. Read More >

Hazardous Weather Conditions

Current conditions at

Watertown, Watertown Municipal Airport (KATY)

Lat: 44.9°NLon: 97.15°WElev: 1745ft.

Fog/Mist

68°F

20°C

Humidity 100%
Wind Speed NE 5 mph
Barometer 29.93 in (1012.4 mb)
Dewpoint 68°F (20°C)
Visibility 0.75 mi
Last update 11 Aug 8:53 am CDT
Extended Forecast for

Hayti SD

  • Today

    Today: Areas of fog before 10am.  Otherwise, partly sunny, with a high near 82. East wind 3 to 7 mph.

    High: 82 °F

    Areas Fog
    then Partly
    Sunny

  • Tonight

    Tonight: A slight chance of showers and thunderstorms before 4am, then a slight chance of showers and thunderstorms after 5am.  Mostly cloudy, with a low around 63. East wind around 5 mph.  Chance of precipitation is 20%.

    Low: 63 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Wednesday

    Wednesday: A chance of showers and thunderstorms, mainly between 7am and noon.  Mostly cloudy, then gradually becoming sunny, with a high near 81. East northeast wind 5 to 8 mph.  Chance of precipitation is 40%.

    High: 81 °F

    Chance
    T-storms then
    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms.  Increasing clouds, with a low around 62. East northeast wind 6 to 8 mph.  Chance of precipitation is 50%.

    Low: 62 °F

    Chance
    T-storms then
    Chance
    Showers

  • Thursday

    Thursday: Partly sunny, with a high near 75. East northeast wind 9 to 14 mph, with gusts as high as 22 mph.

    High: 75 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 59. East wind 9 to 11 mph, with gusts as high as 20 mph.

    Low: 59 °F

    Mostly Cloudy

  • Friday

    Friday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm.  Mostly cloudy, with a high near 72. East southeast wind 13 to 17 mph, with gusts as high as 28 mph.  Chance of precipitation is 40%.

    High: 72 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am.  Cloudy, with a low around 60. Southeast wind 9 to 15 mph, with gusts as high as 24 mph.  Chance of precipitation is 60%.

    Low: 60 °F

    Chance
    T-storms then
    Showers
    Likely

  • Saturday

    Saturday: A chance of showers and thunderstorms.  Cloudy, with a high near 74. South southeast wind 8 to 10 mph becoming northwest in the afternoon.  Chance of precipitation is 40%.

    High: 74 °F

    Chance
    T-storms

Detailed Forecast

Today
Areas of fog before 10am. Otherwise, partly sunny, with a high near 82. East wind 3 to 7 mph.
Tonight
A slight chance of showers and thunderstorms before 4am, then a slight chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 63. East wind around 5 mph. Chance of precipitation is 20%.
Wednesday
A chance of showers and thunderstorms, mainly between 7am and noon. Mostly cloudy, then gradually becoming sunny, with a high near 81. East northeast wind 5 to 8 mph. Chance of precipitation is 40%.
Wednesday Night
A chance of showers and thunderstorms. Increasing clouds, with a low around 62. East northeast wind 6 to 8 mph. Chance of precipitation is 50%.
Thursday
Partly sunny, with a high near 75. East northeast wind 9 to 14 mph, with gusts as high as 22 mph.
Thursday Night
Mostly cloudy, with a low around 59. East wind 9 to 11 mph, with gusts as high as 20 mph.
Friday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 72. East southeast wind 13 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 40%.
Friday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Cloudy, with a low around 60. Southeast wind 9 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 60%.
Saturday
A chance of showers and thunderstorms. Cloudy, with a high near 74. South southeast wind 8 to 10 mph becoming northwest in the afternoon. Chance of precipitation is 40%.
Saturday Night
A slight chance of showers before 1am. Mostly cloudy, with a low around 58. Chance of precipitation is 20%.
Sunday
Partly sunny, with a high near 73.
Sunday Night
Partly cloudy, with a low around 57.
Monday
Mostly sunny, with a high near 76.
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ABOUT THIS FORECAST

 
Point Forecast:
Hayti SD
 44.67°N 97.17°W (Elev. 1755 ft)
9:47 am CDT Aug 11, 2026
9am CDT Aug 11, 2026-6pm CDT Aug 17, 2026
 
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Additional Resources

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