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

Heavy Rainfall Threat Continues in the Southwest on Monday; Record Warmth in the Plains and Midwest

Remnant moisture from Tropical Storm Rachel will persist over portions of the Great Basin and Southwest on Monday, bringing a potential heavy to excessive rainfall risk. Well above average and potentially record breaking temperatures will develop across the Plains and Midwest early this week, spreading into the Lower Mississippi Valley and Southeast midweek. Read More >

Hazardous Weather Conditions

Current conditions at

Watertown, Watertown Municipal Airport (KATY)

Lat: 44.9°NLon: 97.15°WElev: 1745ft.

Fog/Mist

53°F

12°C

Humidity 100%
Wind Speed NE 10 mph
Barometer 29.70 in (1006.2 mb)
Dewpoint 53°F (12°C)
Visibility 4.00 mi
Wind Chill50°F (10°C)
Last update 12 Oct 10:53 am CDT
Extended Forecast for

Watertown SD

Dense Fog Advisory October 12, 11:31am until October 12, 01:00pm
Click here for hazard details and duration
Dense Fog Advisory
  •  
    Dense Fog Advisory October 12, 11:31am until October 12, 01:00pm

    NOW until 1:00pm Mon

    Dense Fog Advisory

  • Columbus Day

    High: 64 °F

    Slight Chance
    Showers and
    Areas Dense
    Fog

  • Tonight

    Tonight: Mostly cloudy, with a low around 43. Northwest wind 10 to 13 mph, with gusts as high as 22 mph.

    Low: 43 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Cloudy, then gradually becoming mostly sunny, with a high near 57. North northwest wind around 10 mph.

    High: 57 °F

    Decreasing
    Clouds

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 38. North wind 6 to 8 mph.

    Low: 38 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 58. North wind 5 to 8 mph.

    High: 58 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A chance of showers after 1am. Partly cloudy, with a low around 40. East northeast wind around 6 mph becoming calm in the evening. Chance of precipitation is 30%.

    Low: 40 °F

    Mostly Clear
    then Chance
    Showers

  • Thursday

    Thursday: A slight chance of showers before 1pm. Partly sunny, with a high near 59. Breezy, with a light west wind becoming northwest 15 to 20 mph in the morning. Winds could gust as high as 32 mph. Chance of precipitation is 20%.

    High: 59 °F

    Slight Chance
    Showers and
    Breezy

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 36. Breezy, with a north northwest wind 21 to 24 mph, with gusts as high as 40 mph.

    Low: 36 °F

    Partly Cloudy
    and Breezy

Detailed Forecast

Columbus Day
A slight chance of showers before 2pm, then a slight chance of drizzle between 2pm and 4pm. Areas of dense fog between 2pm and 3pm. Otherwise, cloudy, with a high near 64. Northeast wind around 9 mph becoming north northwest in the afternoon. Chance of precipitation is 20%.
Tonight
Mostly cloudy, with a low around 43. Northwest wind 10 to 13 mph, with gusts as high as 22 mph.
Tuesday
Cloudy, then gradually becoming mostly sunny, with a high near 57. North northwest wind around 10 mph.
Tuesday Night
Partly cloudy, with a low around 38. North wind 6 to 8 mph.
Wednesday
Sunny, with a high near 58. North wind 5 to 8 mph.
Wednesday Night
A chance of showers after 1am. Partly cloudy, with a low around 40. East northeast wind around 6 mph becoming calm in the evening. Chance of precipitation is 30%.
Thursday
A slight chance of showers before 1pm. Partly sunny, with a high near 59. Breezy, with a light west wind becoming northwest 15 to 20 mph in the morning. Winds could gust as high as 32 mph. Chance of precipitation is 20%.
Thursday Night
Partly cloudy, with a low around 36. Breezy, with a north northwest wind 21 to 24 mph, with gusts as high as 40 mph.
Friday
Sunny, with a high near 53. Breezy, with a north northwest wind 10 to 20 mph, with gusts as high as 31 mph.
Friday Night
Mostly clear, with a low around 33.
Saturday
Sunny, with a high near 60. Breezy.
Saturday Night
Mostly clear, with a low around 43. Breezy.
Sunday
Sunny, with a high near 68.
Basemap Options
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Watertown SD
 44.91°N 97.14°W (Elev. 1736 ft)
Last Update:
11:21 am CDT Oct 12, 2026
Forecast Valid:
11am CDT Oct 12, 2026-6pm CDT Oct 18, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation