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

Coastal Storm Along the East Coast; Pacific Storm System in the West on Friday

A strengthening coastal storm will bring soaking rains to portions of the Mid-Atlantic and Northeast, with accumulating snow likely across the higher elevations of northern New England through Friday. A Pacific storm system will bring heavy low elevation rain, and gusty winds to northern California and the Pacific Northwest, as well as possible blizzard conditions to the Sierra Nevada on Friday. Read More >

Current conditions at

Watertown, Watertown Municipal Airport (KATY)

Lat: 44.9°NLon: 97.15°WElev: 1745ft.

Fair

31°F

-1°C

Humidity 76%
Wind Speed N 6 mph
Barometer 30.20 in (1025.2 mb)
Dewpoint 24°F (-4°C)
Visibility 10.00 mi
Wind Chill25°F (-4°C)
Last update 12 Nov 4:53 pm CST
Extended Forecast for

Watertown SD

  • Tonight

    Tonight: Partly cloudy, with a low around 20. North northeast wind 5 to 7 mph becoming calm in the evening.

    Low: 20 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 37. Calm wind becoming southeast 5 to 7 mph in the morning.

    High: 37 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 21. South southeast wind around 8 mph.

    Low: 21 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 38. South southeast wind 9 to 14 mph, with gusts as high as 23 mph.

    High: 38 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 27. South wind around 11 mph, with gusts as high as 21 mph.

    Low: 27 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 45. South wind 10 to 16 mph, with gusts as high as 26 mph.

    High: 45 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 34. South wind 15 to 17 mph, with gusts as high as 29 mph.

    Low: 34 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 50. Breezy, with a south wind 16 to 20 mph, with gusts as high as 33 mph.

    High: 50 °F

    Sunny and
    Breezy

  • Monday Night

    Monday Night: Mostly clear, with a low around 38. South wind 16 to 18 mph, with gusts as high as 30 mph.

    Low: 38 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 20. North northeast wind 5 to 7 mph becoming calm in the evening.
Friday
Sunny, with a high near 37. Calm wind becoming southeast 5 to 7 mph in the morning.
Friday Night
Mostly clear, with a low around 21. South southeast wind around 8 mph.
Saturday
Sunny, with a high near 38. South southeast wind 9 to 14 mph, with gusts as high as 23 mph.
Saturday Night
Partly cloudy, with a low around 27. South wind around 11 mph, with gusts as high as 21 mph.
Sunday
Sunny, with a high near 45. South wind 10 to 16 mph, with gusts as high as 26 mph.
Sunday Night
Mostly clear, with a low around 34. South wind 15 to 17 mph, with gusts as high as 29 mph.
Monday
Sunny, with a high near 50. Breezy, with a south wind 16 to 20 mph, with gusts as high as 33 mph.
Monday Night
Mostly clear, with a low around 38. South wind 16 to 18 mph, with gusts as high as 30 mph.
Tuesday
Mostly sunny, with a high near 49. Breezy.
Tuesday Night
Mostly cloudy, with a low around 41.
Wednesday
Partly sunny, with a high near 52.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 41. Chance of precipitation is 40%.
Thursday
A chance of rain. Mostly cloudy, with a high near 50. 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:
5:21 pm CST Nov 12, 2026
Forecast Valid:
5pm CST Nov 12, 2026-6pm CST Nov 19, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation