National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Storm Impacting the Southwest U.S.

A slow moving weather disturbance will continue to bring periodic rain showers, a few isolated thunderstorms, and a localized flash flooding across the Southwest. The threat will expand into the Southern Plains Wednesday night. Moderate to heavy snow across the Sierra Nevada and southern Utah Ranges will continue into the overnight period. Read More >

Hazardous Weather Conditions

Current conditions at

Watertown, Watertown Municipal Airport (KATY)

Lat: 44.9°NLon: 97.15°WElev: 1745ft.

Fair

31°F

-1°C

Humidity 96%
Wind Speed Calm
Barometer 30.08 in (1020.6 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Last update 18 Nov 7:53 pm CST
Extended Forecast for

3 Miles ESE Watertown Municipal Airport SD

  • Tonight

    Tonight: Patchy fog after 2am. Otherwise, cloudy, with a low around 31. South wind 3 to 6 mph.

    Low: 31 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Wednesday

    Wednesday: Patchy fog before 11am. Otherwise, mostly cloudy, with a high near 48. South wind 7 to 11 mph, with gusts as high as 20 mph.

    High: 48 °F

    Patchy Fog
    then Partly
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 33. South wind 5 to 7 mph becoming northwest after midnight.

    Low: 33 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 45. Northwest wind 7 to 10 mph.

    High: 45 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 25. West wind 3 to 6 mph.

    Low: 25 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 46. Light and variable wind becoming south southwest 5 to 8 mph in the morning.

    High: 46 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 31. South southwest wind 7 to 9 mph.

    Low: 31 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 50. West wind 9 to 13 mph, with gusts as high as 22 mph.

    High: 50 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 30. West wind 6 to 9 mph.

    Low: 30 °F

    Partly Cloudy

Detailed Forecast

Tonight
Patchy fog after 2am. Otherwise, cloudy, with a low around 31. South wind 3 to 6 mph.
Wednesday
Patchy fog before 11am. Otherwise, mostly cloudy, with a high near 48. South wind 7 to 11 mph, with gusts as high as 20 mph.
Wednesday Night
Mostly cloudy, with a low around 33. South wind 5 to 7 mph becoming northwest after midnight.
Thursday
Mostly sunny, with a high near 45. Northwest wind 7 to 10 mph.
Thursday Night
Mostly clear, with a low around 25. West wind 3 to 6 mph.
Friday
Sunny, with a high near 46. Light and variable wind becoming south southwest 5 to 8 mph in the morning.
Friday Night
Mostly clear, with a low around 31. South southwest wind 7 to 9 mph.
Saturday
Mostly sunny, with a high near 50. West wind 9 to 13 mph, with gusts as high as 22 mph.
Saturday Night
Partly cloudy, with a low around 30. West wind 6 to 9 mph.
Sunday
Mostly sunny, with a high near 50.
Sunday Night
Partly cloudy, with a low around 31.
Monday
Mostly sunny, with a high near 49.
Monday Night
Mostly cloudy, with a low around 31.
Tuesday
Partly sunny, with a high near 43.
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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:
8:36 pm CST Nov 18, 2025
Forecast Valid:
8pm CST Nov 18, 2025-6pm CST Nov 25, 2025
 
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Additional Resources

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Chance of Precipitation