Lake Effect Snow through Saturday: A Series of Storms Impact the West

Lake effect snow showers will continue through Saturday downwind of Lakes Erie, Ontario and the eastern portion of Lake Superior. A series of storm systems will continue to impact California and the Pacific Northwest through the weekend and into next week, bringing widespread rainfall, mountain snowfall, and gusty winds. Coastal flooding is expected in northern California. Read More >

Hazardous Weather Conditions

Current conditions at

Watertown, Watertown Municipal Airport (KATY)

Lat: 44.9°NLon: 97.15°WElev: 1745ft.

Overcast

16°F

-9°C

Humidity 88%
Wind Speed NE 3 mph
Barometer 29.91 in (1015.9 mb)
Dewpoint 13°F (-11°C)
Visibility 10.00 mi
Last update 2 Jan 2:53 am CST
Extended Forecast for

Watertown SD

  • Overnight

    Overnight: Cloudy, with a steady temperature around 15. Northeast wind around 5 mph.

    Low: 15 °F

    Cloudy

  • Friday

    Friday: Patchy fog before 7am.  Otherwise, cloudy, with a high near 18. Calm wind becoming east around 6 mph in the morning.

    High: 18 °F

    Patchy Fog
    then Cloudy

  • Friday Night

    Friday Night: Cloudy, with a low around 13. East wind around 6 mph becoming calm  in the evening.

    Low: 13 °F

    Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 25. Light and variable wind becoming west northwest 5 to 7 mph in the morning.

    High: 25 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 13. North northeast wind 5 to 11 mph becoming southeast after midnight.

    Low: 13 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 36. South southeast wind 10 to 17 mph, with gusts as high as 28 mph.

    High: 36 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 23. South wind 5 to 8 mph becoming west after midnight.

    Low: 23 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 40. West wind 5 to 7 mph becoming south in the afternoon.

    High: 40 °F

    Partly Sunny

  • Monday Night

    Monday Night: A slight chance of freezing rain after midnight.  Mostly cloudy, with a low around 25. South wind 6 to 8 mph becoming west northwest after midnight.  Chance of precipitation is 20%.

    Low: 25 °F

    Mostly Cloudy
    then Slight
    Chance
    Freezing Rain

Detailed Forecast

Overnight
Cloudy, with a steady temperature around 15. Northeast wind around 5 mph.
Friday
Patchy fog before 7am. Otherwise, cloudy, with a high near 18. Calm wind becoming east around 6 mph in the morning.
Friday Night
Cloudy, with a low around 13. East wind around 6 mph becoming calm in the evening.
Saturday
Partly sunny, with a high near 25. Light and variable wind becoming west northwest 5 to 7 mph in the morning.
Saturday Night
Mostly cloudy, with a low around 13. North northeast wind 5 to 11 mph becoming southeast after midnight.
Sunday
Mostly cloudy, with a high near 36. South southeast wind 10 to 17 mph, with gusts as high as 28 mph.
Sunday Night
Partly cloudy, with a low around 23. South wind 5 to 8 mph becoming west after midnight.
Monday
Partly sunny, with a high near 40. West wind 5 to 7 mph becoming south in the afternoon.
Monday Night
A slight chance of freezing rain after midnight. Mostly cloudy, with a low around 25. South wind 6 to 8 mph becoming west northwest after midnight. Chance of precipitation is 20%.
Tuesday
Mostly sunny, with a high near 38.
Tuesday Night
Partly cloudy, with a low around 24.
Wednesday
Mostly sunny, with a high near 41.
Wednesday Night
Partly cloudy, with a low around 26.
Thursday
Partly sunny, with a high near 38.
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ABOUT THIS FORECAST

 
Point Forecast:
Watertown SD
 44.91°N 97.14°W (Elev. 1736 ft)
2:37 am CST Jan 2, 2026
3am CST Jan 2, 2026-6pm CST Jan 8, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database