National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Watertown, Watertown Municipal Airport (KATY)

Lat: 44.9°NLon: 97.15°WElev: 1745ft.

Fair

66°F

19°C

Humidity 70%
Wind Speed S 9 mph
Barometer 29.74 in (1005.9 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 30 Jun 6:53 am CDT
Extended Forecast for

Hayti SD

  • Today

    Today: Mostly sunny, with a high near 85. West southwest wind 7 to 14 mph, with gusts as high as 22 mph.

    High: 85 °F

    Mostly Sunny

  • Tonight

    Tonight: A chance of showers and thunderstorms, mainly after 5am. Increasing clouds, with a low around 64. West southwest wind 5 to 8 mph becoming light and variable. Chance of precipitation is 30%.

    Low: 64 °F

    Mostly Clear
    then Chance
    Showers

  • Wednesday

    Wednesday: Showers and thunderstorms likely, mainly before 3pm. Partly sunny, with a high near 86. East wind 6 to 8 mph becoming west in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 86 °F

    Showers
    Likely then
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 64. West northwest wind around 5 mph becoming calm in the evening.

    Low: 64 °F

    Mostly Clear

  • Thursday

    Thursday: A chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 91. Light southeast wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 30%.

    High: 91 °F

    Sunny then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm. Low around 68. Southeast wind 6 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 68 °F

    Showers

  • Friday

    Friday: Mostly sunny and hot, with a high near 90. East southeast wind 7 to 10 mph.

    High: 90 °F

    Hot

  • Friday Night

    Friday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 68. East wind around 11 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.

    Low: 68 °F

    Chance
    T-storms then
    Showers
    Likely

  • Independence Day

    Independence Day: A chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 87. East northeast wind 9 to 11 mph. Chance of precipitation is 30%.

    High: 87 °F

    Chance
    T-storms

Detailed Forecast

Today
Mostly sunny, with a high near 85. West southwest wind 7 to 14 mph, with gusts as high as 22 mph.
Tonight
A chance of showers and thunderstorms, mainly after 5am. Increasing clouds, with a low around 64. West southwest wind 5 to 8 mph becoming light and variable. Chance of precipitation is 30%.
Wednesday
Showers and thunderstorms likely, mainly before 3pm. Partly sunny, with a high near 86. East wind 6 to 8 mph becoming west in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Mostly clear, with a low around 64. West northwest wind around 5 mph becoming calm in the evening.
Thursday
A chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 91. Light southeast wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 30%.
Thursday Night
Showers and possibly a thunderstorm. Low around 68. Southeast wind 6 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
Mostly sunny and hot, with a high near 90. East southeast wind 7 to 10 mph.
Friday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 68. East wind around 11 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Independence Day
A chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 87. East northeast wind 9 to 11 mph. Chance of precipitation is 30%.
Saturday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 65. Chance of precipitation is 50%.
Sunday
A slight chance of showers. Mostly sunny, with a high near 85. Chance of precipitation is 20%.
Sunday Night
Mostly clear, with a low around 64.
Monday
A slight chance of showers. Mostly sunny, with a high near 87. Chance of precipitation is 20%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Hayti SD
 44.65°N 97.2°W (Elev. 1699 ft)
Last Update:
7:36 am CDT Jun 30, 2026
Forecast Valid:
7am CDT Jun 30, 2026-6pm CDT Jul 6, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation