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

Heavy Rain in the Southern Appalachians; Fire Weather and Heat in the West; Monitoring Tropical Storm Erin

Heavy to excessive rainfall over the southern Appalachians may bring areas of flooding today. Gusty winds and low relative humidity will bring critical fire weather conditions to parts of the Great Basin and northern Rockies today and Thursday. Hot to extremely hot temperatures are in place through today across parts of the western U.S. Read More >

Hazardous Weather Conditions

Current conditions at

Watertown, Watertown Municipal Airport (KATY)

Lat: 44.9°NLon: 97.15°WElev: 1745ft.

Partly Cloudy

77°F

25°C

Humidity 54%
Wind Speed SE 14 G 23 mph
Barometer 29.97 in (1013.9 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 13 Aug 12:53 pm CDT
Extended Forecast for

Goodwin SD

  • This Afternoon

    This Afternoon: Showers and thunderstorms likely, mainly between 2pm and 4pm. Mostly cloudy, with a high near 80. South southeast wind 10 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 70%.

    High: 80 °F

    T-storms
    Likely

  • Tonight

    Tonight: A slight chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms after midnight. Mostly cloudy, with a low around 63. South wind 11 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.

    Low: 63 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Thursday

    Thursday: A chance of showers and thunderstorms, mainly before 10am. Mostly cloudy, then gradually becoming sunny, with a high near 83. South wind around 18 mph, with gusts as high as 30 mph. Chance of precipitation is 30%.

    High: 83 °F

    Chance
    T-storms then
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 67. South wind 10 to 14 mph, with gusts as high as 23 mph.

    Low: 67 °F

    Mostly Clear

  • Friday

    Friday: A slight chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 84. South wind 8 to 10 mph. Chance of precipitation is 20%.

    High: 84 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Northeast wind around 10 mph. Chance of precipitation is 50%.

    Low: 65 °F

    Chance
    T-storms then
    Chance
    Showers

  • Saturday

    Saturday: A slight chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 79. East northeast wind around 11 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.

    High: 79 °F

    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 65. East northeast wind 11 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.

    Low: 65 °F

    Chance
    T-storms

  • Sunday

    Sunday: A chance of showers and thunderstorms. Partly sunny, with a high near 79. East wind 11 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.

    High: 79 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Showers and thunderstorms likely, mainly between 2pm and 4pm. Mostly cloudy, with a high near 80. South southeast wind 10 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 70%.
Tonight
A slight chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms after midnight. Mostly cloudy, with a low around 63. South wind 11 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.
Thursday
A chance of showers and thunderstorms, mainly before 10am. Mostly cloudy, then gradually becoming sunny, with a high near 83. South wind around 18 mph, with gusts as high as 30 mph. Chance of precipitation is 30%.
Thursday Night
Mostly clear, with a low around 67. South wind 10 to 14 mph, with gusts as high as 23 mph.
Friday
A slight chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 84. South wind 8 to 10 mph. Chance of precipitation is 20%.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Northeast wind around 10 mph. Chance of precipitation is 50%.
Saturday
A slight chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 79. East northeast wind around 11 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
Saturday Night
A chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 65. East northeast wind 11 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 79. East wind 11 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Chance of precipitation is 40%.
Monday
A slight chance of showers and thunderstorms. Partly sunny, with a high near 76. Chance of precipitation is 20%.
Monday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 61. Chance of precipitation is 20%.
Tuesday
Mostly sunny, with a high near 76.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Goodwin SD
 44.87°N 96.84°W (Elev. 1991 ft)
Last Update:
1:32 pm CDT Aug 13, 2025
Forecast Valid:
1pm CDT Aug 13, 2025-6pm CDT Aug 19, 2025
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation