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

72°F

22°C

Humidity 28%
Wind Speed S 5 mph
Barometer 29.54 in (1000.1 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 16 Apr 7:53 pm CDT
Extended Forecast for

Watertown SD

  • Tonight

    Tonight: A slight chance of showers before 10pm. Mostly cloudy, with a low around 36. South wind 13 to 17 mph becoming north after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 20%.

    Low: 36 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Friday

    Friday: A chance of rain and snow showers before noon, then a chance of snow showers between noon and 1pm. Mostly cloudy, with a high near 39. Breezy, with a north northwest wind 20 to 24 mph, with gusts as high as 36 mph. Chance of precipitation is 40%.

    High: 39 °F

    Breezy.
    Chance
    Rain/Snow
    then Chance
    Snow Showers

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 22. Blustery, with a northwest wind 18 to 25 mph, with gusts as high as 36 mph.

    Low: 22 °F

    Mostly Cloudy
    and Blustery

  • Saturday

    Saturday: Sunny, with a high near 43. Breezy, with a west northwest wind 18 to 22 mph, with gusts as high as 33 mph.

    High: 43 °F

    Sunny and
    Breezy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 24. Blustery, with a northwest wind 15 to 20 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 30 mph.

    Low: 24 °F

    Mostly Clear
    and Blustery
    then Mostly
    Clear

  • Sunday

    Sunday: Sunny, with a high near 50. North northwest wind 6 to 9 mph.

    High: 50 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 32. North northeast wind 6 to 11 mph becoming southeast after midnight. Winds could gust as high as 21 mph.

    Low: 32 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 70. Breezy, with a south southeast wind 13 to 20 mph, with gusts as high as 28 mph.

    High: 70 °F

    Sunny then
    Mostly Sunny
    and Breezy

  • Monday Night

    Monday Night: Mostly clear, with a low around 42. South southwest wind 9 to 13 mph becoming north after midnight. Winds could gust as high as 21 mph.

    Low: 42 °F

    Mostly Clear

Detailed Forecast

Tonight
A slight chance of showers before 10pm. Mostly cloudy, with a low around 36. South wind 13 to 17 mph becoming north after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 20%.
Friday
A chance of rain and snow showers before noon, then a chance of snow showers between noon and 1pm. Mostly cloudy, with a high near 39. Breezy, with a north northwest wind 20 to 24 mph, with gusts as high as 36 mph. Chance of precipitation is 40%.
Friday Night
Mostly cloudy, with a low around 22. Blustery, with a northwest wind 18 to 25 mph, with gusts as high as 36 mph.
Saturday
Sunny, with a high near 43. Breezy, with a west northwest wind 18 to 22 mph, with gusts as high as 33 mph.
Saturday Night
Mostly clear, with a low around 24. Blustery, with a northwest wind 15 to 20 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 30 mph.
Sunday
Sunny, with a high near 50. North northwest wind 6 to 9 mph.
Sunday Night
Mostly clear, with a low around 32. North northeast wind 6 to 11 mph becoming southeast after midnight. Winds could gust as high as 21 mph.
Monday
Sunny, with a high near 70. Breezy, with a south southeast wind 13 to 20 mph, with gusts as high as 28 mph.
Monday Night
Mostly clear, with a low around 42. South southwest wind 9 to 13 mph becoming north after midnight. Winds could gust as high as 21 mph.
Tuesday
Sunny, with a high near 69.
Tuesday Night
Mostly clear, with a low around 45.
Wednesday
Sunny, with a high near 74.
Wednesday Night
A chance of showers. Partly cloudy, with a low around 50. Chance of precipitation is 30%.
Thursday
A chance of showers. Partly sunny, with a high near 70. Breezy. Chance of precipitation is 50%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Watertown SD
 44.91°N 97.17°W (Elev. 1755 ft)
Last Update:
8:36 pm CDT Apr 16, 2026
Forecast Valid:
8pm CDT Apr 16, 2026-6pm CDT Apr 23, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation