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

42°F

6°C

Humidity 47%
Wind Speed SE 9 mph
Barometer 29.92 in (1014.2 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Wind Chill37°F (3°C)
Last update 28 Mar 11:53 pm CDT
Extended Forecast for

Watertown SD

  • Overnight

    Overnight: Mostly cloudy, with a low around 33. South wind around 8 mph.

    Low: 33 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy through mid morning, then gradual clearing, with a high near 70. South southeast wind around 7 mph becoming west in the afternoon.

    High: 70 °F

    Becoming
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 36. Northwest wind 5 to 9 mph becoming east after midnight.

    Low: 36 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 66. East northeast wind 10 to 14 mph.

    High: 66 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A slight chance of rain after 1am. Mostly cloudy, with a low around 32. Northeast wind 9 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 20%.

    Low: 32 °F

    Partly Cloudy
    then Slight
    Chance Rain

  • Tuesday

    Tuesday: Partly sunny, with a high near 43. Breezy, with a northwest wind 18 to 22 mph, with gusts as high as 32 mph.

    High: 43 °F

    Partly Sunny
    and Breezy

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 18. Blustery, with a north wind 15 to 20 mph decreasing to 8 to 13 mph after midnight.

    Low: 18 °F

    Mostly Clear
    and Blustery
    then Partly
    Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 44. East northeast wind 7 to 15 mph becoming southeast in the afternoon.

    High: 44 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of snow after 1am. Partly cloudy, with a low around 28. Southeast wind 15 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.

    Low: 28 °F

    Partly Cloudy
    then Slight
    Chance Snow

Detailed Forecast

Overnight
Mostly cloudy, with a low around 33. South wind around 8 mph.
Sunday
Mostly cloudy through mid morning, then gradual clearing, with a high near 70. South southeast wind around 7 mph becoming west in the afternoon.
Sunday Night
Mostly clear, with a low around 36. Northwest wind 5 to 9 mph becoming east after midnight.
Monday
Mostly sunny, with a high near 66. East northeast wind 10 to 14 mph.
Monday Night
A slight chance of rain after 1am. Mostly cloudy, with a low around 32. Northeast wind 9 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 20%.
Tuesday
Partly sunny, with a high near 43. Breezy, with a northwest wind 18 to 22 mph, with gusts as high as 32 mph.
Tuesday Night
Partly cloudy, with a low around 18. Blustery, with a north wind 15 to 20 mph decreasing to 8 to 13 mph after midnight.
Wednesday
Mostly sunny, with a high near 44. East northeast wind 7 to 15 mph becoming southeast in the afternoon.
Wednesday Night
A slight chance of snow after 1am. Partly cloudy, with a low around 28. Southeast wind 15 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.
Thursday
A chance of snow before 1pm, then a chance of rain and snow. Partly sunny, with a high near 48. Breezy. Chance of precipitation is 30%.
Thursday Night
A chance of rain and snow. Mostly cloudy, with a low around 31. Breezy. Chance of precipitation is 40%.
Friday
A chance of rain and snow. Mostly cloudy, with a high near 48. Breezy. Chance of precipitation is 50%.
Friday Night
A chance of rain and snow. Mostly cloudy, with a low around 30. Chance of precipitation is 50%.
Saturday
A chance of rain and snow. Mostly cloudy, with a high near 45. Breezy. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Watertown SD
 44.91°N 97.14°W (Elev. 1736 ft)
Last Update:
11:36 pm CDT Mar 28, 2026
Forecast Valid:
12am CDT Mar 29, 2026-6pm CDT Apr 4, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation