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

49°F

9°C

Humidity 59%
Wind Speed S 14 G 23 mph
Barometer 29.99 in (1016.0 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 18 Oct 12:53 am CDT
Extended Forecast for

5 Miles S Wallace SD

  • Overnight

    Overnight: Mostly clear, with a low around 46. South wind 15 to 17 mph, with gusts as high as 26 mph.

    Low: 46 °F

    Mostly Clear

  • Sunday

    Sunday: Partly sunny, then gradually becoming sunny, with a high near 65. South wind 6 to 11 mph becoming light and variable in the afternoon. Winds could gust as high as 21 mph.

    High: 65 °F

    Becoming
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 43. Northeast wind 5 to 8 mph.

    Low: 43 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 61. East northeast wind 8 to 11 mph, with gusts as high as 20 mph.

    High: 61 °F

    Sunny

  • Monday Night

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

    Low: 45 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 65. South wind 9 to 16 mph, with gusts as high as 26 mph.

    High: 65 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 50. South southeast wind 7 to 10 mph, with gusts as high as 20 mph.

    Low: 50 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 68. South wind around 7 mph.

    High: 68 °F

    Sunny

  • Wednesday Night

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

    Low: 48 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 46. South wind 15 to 17 mph, with gusts as high as 26 mph.
Sunday
Partly sunny, then gradually becoming sunny, with a high near 65. South wind 6 to 11 mph becoming light and variable in the afternoon. Winds could gust as high as 21 mph.
Sunday Night
Mostly clear, with a low around 43. Northeast wind 5 to 8 mph.
Monday
Sunny, with a high near 61. East northeast wind 8 to 11 mph, with gusts as high as 20 mph.
Monday Night
Mostly clear, with a low around 45. Southeast wind around 7 mph.
Tuesday
Sunny, with a high near 65. South wind 9 to 16 mph, with gusts as high as 26 mph.
Tuesday Night
Mostly clear, with a low around 50. South southeast wind 7 to 10 mph, with gusts as high as 20 mph.
Wednesday
Sunny, with a high near 68. South wind around 7 mph.
Wednesday Night
Mostly clear, with a low around 48. East wind around 6 mph.
Thursday
Sunny, with a high near 70.
Thursday Night
A slight chance of showers. Partly cloudy, with a low around 56. Chance of precipitation is 20%.
Friday
A slight chance of showers. Partly sunny, with a high near 72. 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 66. Breezy. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles S Wallace SD
 45.01°N 97.48°W (Elev. 1808 ft)
Last Update:
12:21 am CDT Oct 18, 2026
Forecast Valid:
1am CDT Oct 18, 2026-6pm CDT Oct 24, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation