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

78°F

26°C

Humidity 48%
Wind Speed S 18 G 26 mph
Barometer 29.94 in (1013.0 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 1 Oct 4:53 pm CDT
Extended Forecast for

3 Miles ESE Watertown Municipal Airport SD

  • Tonight

    Tonight: A slight chance of showers and thunderstorms between midnight and 1am. Partly cloudy, with a low around 60. South wind 10 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 20%.

    Low: 60 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Thursday

    Thursday: Sunny, with a high near 83. South wind 6 to 8 mph becoming west in the afternoon.

    High: 83 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 60. Calm wind becoming southeast around 6 mph after midnight.

    Low: 60 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 88. South wind 8 to 16 mph, with gusts as high as 28 mph.

    High: 88 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 67. South wind 14 to 18 mph, with gusts as high as 32 mph.

    Low: 67 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 88. Breezy, with a south wind 18 to 22 mph, with gusts as high as 36 mph.

    High: 88 °F

    Mostly Sunny
    and Breezy

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 60. Breezy, with a south wind 18 to 21 mph, with gusts as high as 34 mph. Chance of precipitation is 30%.

    Low: 60 °F

    Chance
    Showers and
    Breezy

  • Sunday

    Sunday: A chance of showers, mainly before 1pm. Partly sunny, with a high near 70. Breezy, with a south southwest wind 20 to 22 mph becoming northwest in the afternoon. Winds could gust as high as 33 mph. Chance of precipitation is 30%.

    High: 70 °F

    Chance
    Showers and
    Breezy

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 42. Northwest wind 7 to 14 mph, with gusts as high as 24 mph.

    Low: 42 °F

    Partly Cloudy

Detailed Forecast

Tonight
A slight chance of showers and thunderstorms between midnight and 1am. Partly cloudy, with a low around 60. South wind 10 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 20%.
Thursday
Sunny, with a high near 83. South wind 6 to 8 mph becoming west in the afternoon.
Thursday Night
Mostly clear, with a low around 60. Calm wind becoming southeast around 6 mph after midnight.
Friday
Sunny, with a high near 88. South wind 8 to 16 mph, with gusts as high as 28 mph.
Friday Night
Mostly clear, with a low around 67. South wind 14 to 18 mph, with gusts as high as 32 mph.
Saturday
Mostly sunny, with a high near 88. Breezy, with a south wind 18 to 22 mph, with gusts as high as 36 mph.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 60. Breezy, with a south wind 18 to 21 mph, with gusts as high as 34 mph. Chance of precipitation is 30%.
Sunday
A chance of showers, mainly before 1pm. Partly sunny, with a high near 70. Breezy, with a south southwest wind 20 to 22 mph becoming northwest in the afternoon. Winds could gust as high as 33 mph. Chance of precipitation is 30%.
Sunday Night
Partly cloudy, with a low around 42. Northwest wind 7 to 14 mph, with gusts as high as 24 mph.
Monday
Mostly sunny, with a high near 61.
Monday Night
Partly cloudy, with a low around 42.
Tuesday
Sunny, with a high near 63.
Tuesday Night
Mostly clear, with a low around 39.
Wednesday
Sunny, with a high near 65.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ESE Watertown Municipal Airport SD
 44.91°N 97.11°W (Elev. 1752 ft)
Last Update:
5:46 pm CDT Oct 1, 2025
Forecast Valid:
5pm CDT Oct 1, 2025-6pm CDT Oct 8, 2025
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation