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.

Partly Cloudy

72°F

22°C

Humidity 91%
Wind Speed E 6 mph
Barometer 29.91 in (1011.8 mb)
Dewpoint 69°F (21°C)
Visibility 9.00 mi
Last update 9 Jun 12:53 am CDT
Extended Forecast for

Watertown SD

  • Overnight

    Overnight: Mostly cloudy, with a low around 64. East southeast wind around 6 mph.

    Low: 64 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, then gradually becoming sunny, with a high near 86. Breezy, with a south southeast wind 8 to 13 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 33 mph.

    High: 86 °F

    Partly Sunny
    then Sunny
    and Breezy

  • Tuesday Night

    Tuesday Night: Showers and thunderstorms before 4am, then a slight chance of showers. Some of the storms could be severe. Low around 68. Breezy, with a south southeast wind 17 to 22 mph becoming south 11 to 16 mph after midnight. Winds could gust as high as 33 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

    Severe
    Thunderstorms
    and Breezy

  • Wednesday

    Wednesday: A slight chance of showers and thunderstorms after 4pm. Mostly cloudy through mid morning, then gradual clearing, with a high near 82. Breezy, with a south wind 13 to 21 mph becoming west northwest in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 20%.

    High: 82 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms and
    Breezy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 57. West wind 12 to 17 mph becoming light west southwest. Winds could gust as high as 28 mph.

    Low: 57 °F

    Partly Cloudy

  • Thursday

    Thursday: A slight chance of showers before 1pm. Mostly sunny, with a high near 72. Breezy, with a west wind 13 to 22 mph, with gusts as high as 36 mph. Chance of precipitation is 20%.

    High: 72 °F

    Slight Chance
    Showers and
    Breezy

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 54. Breezy, with a west wind 11 to 20 mph, with gusts as high as 31 mph.

    Low: 54 °F

    Partly Cloudy
    and Breezy
    then Mostly
    Clear

  • Friday

    Friday: Sunny, with a high near 78. Breezy, with a west wind 13 to 20 mph, with gusts as high as 33 mph.

    High: 78 °F

    Sunny then
    Sunny and
    Breezy

  • Friday Night

    Friday Night: Mostly clear, with a low around 54. North northwest wind 5 to 11 mph, with gusts as high as 22 mph.

    Low: 54 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 64. East southeast wind around 6 mph.
Tuesday
Mostly cloudy, then gradually becoming sunny, with a high near 86. Breezy, with a south southeast wind 8 to 13 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 33 mph.
Tuesday Night
Showers and thunderstorms before 4am, then a slight chance of showers. Some of the storms could be severe. Low around 68. Breezy, with a south southeast wind 17 to 22 mph becoming south 11 to 16 mph after midnight. Winds could gust as high as 33 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
A slight chance of showers and thunderstorms after 4pm. Mostly cloudy through mid morning, then gradual clearing, with a high near 82. Breezy, with a south wind 13 to 21 mph becoming west northwest in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 20%.
Wednesday Night
Partly cloudy, with a low around 57. West wind 12 to 17 mph becoming light west southwest. Winds could gust as high as 28 mph.
Thursday
A slight chance of showers before 1pm. Mostly sunny, with a high near 72. Breezy, with a west wind 13 to 22 mph, with gusts as high as 36 mph. Chance of precipitation is 20%.
Thursday Night
Mostly clear, with a low around 54. Breezy, with a west wind 11 to 20 mph, with gusts as high as 31 mph.
Friday
Sunny, with a high near 78. Breezy, with a west wind 13 to 20 mph, with gusts as high as 33 mph.
Friday Night
Mostly clear, with a low around 54. North northwest wind 5 to 11 mph, with gusts as high as 22 mph.
Saturday
Mostly sunny, with a high near 73.
Saturday Night
Partly cloudy, with a low around 50.
Sunday
Partly sunny, with a high near 69.
Sunday Night
Partly cloudy, with a low around 50.
Monday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 72. Chance of precipitation is 20%.
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ABOUT THIS FORECAST

 
Point Forecast:
Watertown SD
 44.91°N 97.17°W (Elev. 1755 ft)
Last Update:
1:31 am CDT Jun 9, 2026
Forecast Valid:
1am CDT Jun 9, 2026-6pm CDT Jun 15, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation