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

Watertown, Watertown Municipal Airport (KATY)

Lat: 44.9°NLon: 97.15°WElev: 1745ft.

Fair

58°F

14°C

Humidity 84%
Wind Speed Calm
Barometer 30.01 in (1015.4 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Last update 9 Sep 1:53 am CDT
Extended Forecast for

Hayti SD

  • Overnight

    Overnight: Mostly clear, with a low around 55. Light west northwest wind.

    Low: 55 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 76. West northwest wind 7 to 16 mph, with gusts as high as 25 mph.

    High: 76 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 53. West northwest wind 5 to 7 mph becoming calm in the evening.

    Low: 53 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 82. South wind 5 to 10 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 26 mph.

    High: 82 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 64. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 64 °F

    Clear then
    Mostly Clear
    and Breezy

  • Friday

    Friday: A slight chance of showers after 1pm. Sunny, with a high near 87. Breezy, with a south wind 20 to 22 mph, with gusts as high as 32 mph. Chance of precipitation is 20%.

    High: 87 °F

    Breezy. Sunny
    then Slight
    Chance
    Showers

  • Friday Night

    Friday Night: Mostly clear, with a low around 53. Breezy, with a west wind 15 to 20 mph becoming north 9 to 14 mph after midnight. Winds could gust as high as 29 mph.

    Low: 53 °F

    Mostly Clear
    and Breezy
    then Partly
    Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 73. North northwest wind 7 to 10 mph.

    High: 73 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A slight chance of showers after 1am. Mostly cloudy, with a low around 51. Light and variable wind becoming east 5 to 8 mph after midnight. Chance of precipitation is 20%.

    Low: 51 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

Detailed Forecast

Overnight
Mostly clear, with a low around 55. Light west northwest wind.
Wednesday
Sunny, with a high near 76. West northwest wind 7 to 16 mph, with gusts as high as 25 mph.
Wednesday Night
Mostly clear, with a low around 53. West northwest wind 5 to 7 mph becoming calm in the evening.
Thursday
Sunny, with a high near 82. South wind 5 to 10 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 26 mph.
Thursday Night
Mostly clear, with a low around 64. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph.
Friday
A slight chance of showers after 1pm. Sunny, with a high near 87. Breezy, with a south wind 20 to 22 mph, with gusts as high as 32 mph. Chance of precipitation is 20%.
Friday Night
Mostly clear, with a low around 53. Breezy, with a west wind 15 to 20 mph becoming north 9 to 14 mph after midnight. Winds could gust as high as 29 mph.
Saturday
Mostly sunny, with a high near 73. North northwest wind 7 to 10 mph.
Saturday Night
A slight chance of showers after 1am. Mostly cloudy, with a low around 51. Light and variable wind becoming east 5 to 8 mph after midnight. Chance of precipitation is 20%.
Sunday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 68. Chance of precipitation is 50%.
Sunday Night
Showers and possibly a thunderstorm. Low around 54. Chance of precipitation is 80%.
Monday
A chance of showers. Mostly cloudy, with a high near 69. Breezy. Chance of precipitation is 50%.
Monday Night
A slight chance of showers. Partly cloudy, with a low around 48. Chance of precipitation is 20%.
Tuesday
Sunny, with a high near 68.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Hayti SD
 44.65°N 97.2°W (Elev. 1699 ft)
Last Update:
1:31 am CDT Sep 9, 2026
Forecast Valid:
2am CDT Sep 9, 2026-6pm CDT Sep 15, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation