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 and Breezy

55°F

13°C

Humidity 40%
Wind Speed S 25 G 35 mph
Barometer 30.18 in (1023.0 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Wind Chill49°F (9°C)
Last update 17 Oct 11:53 am CDT
Extended Forecast for

6 Miles NNW Altamont SD

  • This Afternoon

    This Afternoon: Sunny, with a high near 61. Windy, with a southwest wind 33 to 38 mph decreasing to 24 to 29 mph.

    High: 61 °F

    Sunny and
    Windy

  • Tonight

    Tonight: Mostly clear, with a low around 47. Breezy, with a south southwest wind 20 to 25 mph, with gusts as high as 39 mph.

    Low: 47 °F

    Mostly Clear
    and Breezy

  • Sunday

    Sunday: Sunny, with a high near 66. Breezy, with a southwest wind 16 to 21 mph becoming north northwest 5 to 10 mph in the afternoon. Winds could gust as high as 34 mph.

    High: 66 °F

    Mostly Sunny
    and Breezy
    then Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 42. Light and variable wind becoming north northwest around 5 mph after midnight.

    Low: 42 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 59. Light and variable wind becoming east 5 to 9 mph in the morning.

    High: 59 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 45. South wind around 7 mph.

    Low: 45 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 65. South wind 8 to 15 mph, with gusts as high as 25 mph.

    High: 65 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 50. South wind 8 to 10 mph, with gusts as high as 20 mph.

    Low: 50 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 69. South southwest wind 7 to 9 mph.

    High: 69 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 61. Windy, with a southwest wind 33 to 38 mph decreasing to 24 to 29 mph.
Tonight
Mostly clear, with a low around 47. Breezy, with a south southwest wind 20 to 25 mph, with gusts as high as 39 mph.
Sunday
Sunny, with a high near 66. Breezy, with a southwest wind 16 to 21 mph becoming north northwest 5 to 10 mph in the afternoon. Winds could gust as high as 34 mph.
Sunday Night
Mostly clear, with a low around 42. Light and variable wind becoming north northwest around 5 mph after midnight.
Monday
Sunny, with a high near 59. Light and variable wind becoming east 5 to 9 mph in the morning.
Monday Night
Mostly clear, with a low around 45. South wind around 7 mph.
Tuesday
Sunny, with a high near 65. South wind 8 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
Mostly clear, with a low around 50. South wind 8 to 10 mph, with gusts as high as 20 mph.
Wednesday
Sunny, with a high near 69. South southwest wind 7 to 9 mph.
Wednesday Night
Mostly clear, with a low around 48.
Thursday
Sunny, with a high near 70.
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%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles NNW Altamont SD
 44.93°N 96.72°W (Elev. 1749 ft)
Last Update:
12:21 pm CDT Oct 17, 2026
Forecast Valid:
12pm CDT Oct 17, 2026-6pm CDT Oct 23, 2026
 
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Additional Resources

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Chance of Precipitation