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

Autumn Temperatures for Eastern Third of the Country; Super Typhoon Approaching Guam

Cooler and less humid conditions for the eastern third of the nation as a cold slides off the east coast. Combination of dry and breezy conditions may result in spread of wildfires across the lower Mississippi Valley. In addition, fire weather conditions linger into portions of Southern California. For Guam, a super typhoon is approaching. Read More >

Hazardous Weather Conditions

Current conditions at

Watertown, Watertown Municipal Airport (KATY)

Lat: 44.9°NLon: 97.15°WElev: 1745ft.

Fair

60°F

16°C

Humidity 38%
Wind Speed S 14 G 30 mph
Barometer 30.05 in (1018.2 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 17 Oct 5:53 pm CDT
Extended Forecast for

3 Miles SSW Watertown SD

  • Tonight

    Tonight: Mostly clear, with a low around 45. Breezy, with a south wind 15 to 23 mph, with gusts as high as 33 mph.

    Low: 45 °F

    Clear and
    Breezy then
    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 66. South wind 5 to 13 mph becoming east in the afternoon. Winds could gust as high as 23 mph.

    High: 66 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 42. Calm wind becoming east northeast around 5 mph after midnight.

    Low: 42 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 61. East southeast wind 6 to 10 mph, with gusts as high as 20 mph.

    High: 61 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 44. South southeast wind 6 to 8 mph.

    Low: 44 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 66. South wind 9 to 15 mph, with gusts as high as 26 mph.

    High: 66 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 49. South wind 8 to 10 mph, with gusts as high as 21 mph.

    Low: 49 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 70. South wind around 8 mph.

    High: 70 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 48. East wind 3 to 6 mph.

    Low: 48 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 45. Breezy, with a south wind 15 to 23 mph, with gusts as high as 33 mph.
Sunday
Sunny, with a high near 66. South wind 5 to 13 mph becoming east in the afternoon. Winds could gust as high as 23 mph.
Sunday Night
Mostly clear, with a low around 42. Calm wind becoming east northeast around 5 mph after midnight.
Monday
Sunny, with a high near 61. East southeast wind 6 to 10 mph, with gusts as high as 20 mph.
Monday Night
Mostly clear, with a low around 44. South southeast wind 6 to 8 mph.
Tuesday
Sunny, with a high near 66. South wind 9 to 15 mph, with gusts as high as 26 mph.
Tuesday Night
Mostly clear, with a low around 49. South wind 8 to 10 mph, with gusts as high as 21 mph.
Wednesday
Sunny, with a high near 70. South wind around 8 mph.
Wednesday Night
Mostly clear, with a low around 48. East wind 3 to 6 mph.
Thursday
Sunny, with a high near 71.
Thursday Night
Partly cloudy, with a low around 55.
Friday
A slight chance of showers. Partly sunny, with a high near 73. Breezy. Chance of precipitation is 20%.
Friday Night
A chance of showers. Mostly cloudy, with a low around 57. Breezy. Chance of precipitation is 30%.
Saturday
A chance of showers. Partly sunny, with a high near 67. Breezy. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSW Watertown SD
 44.86°N 97.17°W (Elev. 1716 ft)
Last Update:
6:21 pm CDT Oct 17, 2026
Forecast Valid:
6pm CDT Oct 17, 2026-6pm CDT Oct 24, 2026
 
Forecast Discussion
 
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Additional Resources

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