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

58°F

14°C

Humidity 93%
Wind Speed S 13 G 23 mph
Barometer 29.56 in (1001.4 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 12 Apr 2:53 am CDT
Extended Forecast for

Watertown SD

  • Overnight

    Overnight: Patchy fog. Otherwise, mostly cloudy, with a steady temperature around 59. South wind around 11 mph, with gusts as high as 28 mph.

    Low: 59 °F

    Patchy Fog

  • Sunday

    Sunday: Mostly cloudy through mid morning, then gradual clearing, with a high near 79. Breezy, with a south wind 15 to 22 mph becoming west in the afternoon. Winds could gust as high as 33 mph.

    High: 79 °F

    Becoming
    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: Increasing clouds, with a low around 45. West wind 6 to 14 mph becoming east northeast after midnight. Winds could gust as high as 22 mph.

    Low: 45 °F

    Increasing
    Clouds

  • Monday

    Monday: A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 67. East wind 10 to 14 mph. Chance of precipitation is 50%.

    High: 67 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A slight chance of showers before 1am. Partly cloudy, with a low around 40. North northeast wind 7 to 10 mph. Chance of precipitation is 20%.

    Low: 40 °F

    Slight Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers after 1pm. Partly sunny, with a high near 63. North wind 7 to 10 mph. Chance of precipitation is 30%.

    High: 63 °F

    Partly Sunny
    then Chance
    Showers

  • Tuesday Night

    Tuesday Night: A slight chance of showers. Mostly cloudy, with a low around 43. North wind 5 to 8 mph becoming southeast after midnight. Chance of precipitation is 20%.

    Low: 43 °F

    Slight Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers, mainly after 1pm. Mostly sunny, with a high near 68. South southeast wind 6 to 10 mph. Chance of precipitation is 30%.

    High: 68 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A slight chance of showers before 1am. Partly cloudy, with a low around 44. Southeast wind 7 to 9 mph. Chance of precipitation is 20%.

    Low: 44 °F

    Slight Chance
    Showers

Detailed Forecast

Overnight
Patchy fog. Otherwise, mostly cloudy, with a steady temperature around 59. South wind around 11 mph, with gusts as high as 28 mph.
Sunday
Mostly cloudy through mid morning, then gradual clearing, with a high near 79. Breezy, with a south wind 15 to 22 mph becoming west in the afternoon. Winds could gust as high as 33 mph.
Sunday Night
Increasing clouds, with a low around 45. West wind 6 to 14 mph becoming east northeast after midnight. Winds could gust as high as 22 mph.
Monday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 67. East wind 10 to 14 mph. Chance of precipitation is 50%.
Monday Night
A slight chance of showers before 1am. Partly cloudy, with a low around 40. North northeast wind 7 to 10 mph. Chance of precipitation is 20%.
Tuesday
A chance of showers after 1pm. Partly sunny, with a high near 63. North wind 7 to 10 mph. Chance of precipitation is 30%.
Tuesday Night
A slight chance of showers. Mostly cloudy, with a low around 43. North wind 5 to 8 mph becoming southeast after midnight. Chance of precipitation is 20%.
Wednesday
A chance of showers, mainly after 1pm. Mostly sunny, with a high near 68. South southeast wind 6 to 10 mph. Chance of precipitation is 30%.
Wednesday Night
A slight chance of showers before 1am. Partly cloudy, with a low around 44. Southeast wind 7 to 9 mph. Chance of precipitation is 20%.
Thursday
Sunny, with a high near 75.
Thursday Night
A chance of showers. Partly cloudy, with a low around 37. Chance of precipitation is 40%.
Friday
A chance of rain and snow showers. Partly sunny, with a high near 48. Breezy. Chance of precipitation is 40%.
Friday Night
A chance of rain and snow showers. Mostly cloudy, with a low around 25. Blustery. Chance of precipitation is 30%.
Saturday
A slight chance of snow showers. Partly sunny, with a high near 44. Chance of precipitation is 20%.
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ABOUT THIS FORECAST

 
Point Forecast:
Watertown SD
 44.91°N 97.14°W (Elev. 1736 ft)
Last Update:
2:36 am CDT Apr 12, 2026
Forecast Valid:
3am CDT Apr 12, 2026-6pm CDT Apr 18, 2026
 
Forecast Discussion
 
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Additional Resources

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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