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

Flooding Risks from Tropical Moisture Across the Southeast and Southwest

Tropical moisture from Isaias and Rachel will impact portions of the Southeast and Southwest this weekend. Flash flooding, strong winds and even a threat for severe thunderstorms and tornadoes are possible. Meanwhile, strong winds and dry fuels are raising fire weather concerns across the central Great Basin and western High Plains. Across the northern Rockies, first winter storm of the season. 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 75%
Wind Speed SE 15 mph
Barometer 29.60 in (1001.7 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 10 Oct 6:53 am CDT
Extended Forecast for

Henry SD

  • Today

    Today: Patchy blowing dust. Sunny, with a high near 87. Breezy, with a south wind 15 to 22 mph, with gusts as high as 34 mph.

    High: 87 °F

    Patchy
    Blowing Dust
    and Breezy

  • Tonight

    Tonight: Mostly clear, with a low around 63. South wind 11 to 14 mph, with gusts as high as 25 mph.

    Low: 63 °F

    Mostly Clear

  • Sunday

    Sunday: Increasing clouds, with a high near 78. South southeast wind around 11 mph becoming northeast in the afternoon. Winds could gust as high as 20 mph.

    High: 78 °F

    Increasing
    Clouds

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 47. North wind 11 to 15 mph, with gusts as high as 23 mph.

    Low: 47 °F

    Mostly Cloudy

  • Columbus Day

    Columbus Day: A chance of showers. Mostly cloudy, with a high near 61. North wind 11 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 40%.

    High: 61 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 42. North northwest wind 9 to 11 mph.

    Low: 42 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 59. North wind around 9 mph.

    High: 59 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of showers after 1am. Partly cloudy, with a low around 42. East northeast wind around 7 mph. Chance of precipitation is 20%.

    Low: 42 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers, mainly after 1pm. Mostly sunny, with a high near 60. East wind 8 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 40%.

    High: 60 °F

    Chance
    Showers

Detailed Forecast

Today
Patchy blowing dust. Sunny, with a high near 87. Breezy, with a south wind 15 to 22 mph, with gusts as high as 34 mph.
Tonight
Mostly clear, with a low around 63. South wind 11 to 14 mph, with gusts as high as 25 mph.
Sunday
Increasing clouds, with a high near 78. South southeast wind around 11 mph becoming northeast in the afternoon. Winds could gust as high as 20 mph.
Sunday Night
Mostly cloudy, with a low around 47. North wind 11 to 15 mph, with gusts as high as 23 mph.
Columbus Day
A chance of showers. Mostly cloudy, with a high near 61. North wind 11 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 40%.
Monday Night
Mostly cloudy, with a low around 42. North northwest wind 9 to 11 mph.
Tuesday
Partly sunny, with a high near 59. North wind around 9 mph.
Tuesday Night
A slight chance of showers after 1am. Partly cloudy, with a low around 42. East northeast wind around 7 mph. Chance of precipitation is 20%.
Wednesday
A chance of showers, mainly after 1pm. Mostly sunny, with a high near 60. East wind 8 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 40%.
Wednesday Night
Showers likely. Mostly cloudy, with a low around 44. Chance of precipitation is 60%.
Thursday
Showers likely. Mostly cloudy, with a high near 58. Chance of precipitation is 60%.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 40. Chance of precipitation is 30%.
Friday
A slight chance of showers. Partly sunny, with a high near 54. Chance of precipitation is 20%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Henry SD
 44.88°N 97.45°W (Elev. 1801 ft)
Last Update:
7:21 am CDT Oct 10, 2026
Forecast Valid:
7am CDT Oct 10, 2026-6pm CDT Oct 16, 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