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

Heavy to Excessive Rainfall for the Southwest U.S.; Watching for Possible East Coast Storm

Thunderstorms and a chance for some isolated flash flooding will continue today in the Southwest U.S. before an influx of tropical moisture from Priscilla brings widespread heavy rainfall and a flash flooding threat late this week into this weekend. A coastal storm may develop off the southeast U.S. coast Friday night and drift north just off the Mid-Atlantic coast through the weekend. Read More >

Hazardous Weather Conditions

Current conditions at

Sisseton, Sisseton Municipal Airport (K8D3)

Lat: 45.67°NLon: 96.99°WElev: 1161ft.

68°F

20°C

Humidity 39%
Wind Speed S 12 G 20 mph
Barometer 30.16 in (1021.6 mb)
Dewpoint 42°F (6°C)
Visibility NA
Last update 8 Oct 5:56 pm CDT
Extended Forecast for

Waubay SD

  • Tonight

    Tonight: Mostly clear, with a low around 51. South wind 11 to 16 mph, with gusts as high as 30 mph.

    Low: 51 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 72. Breezy, with a south wind 13 to 20 mph, with gusts as high as 33 mph.

    High: 72 °F

    Mostly Sunny
    and Breezy
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 46. West wind 6 to 9 mph becoming north northwest after midnight.

    Low: 46 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 62. North wind 8 to 10 mph.

    High: 62 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 42. Northeast wind 6 to 10 mph becoming southeast after midnight.

    Low: 42 °F

    Mostly Clear

  • Saturday

    Saturday: A slight chance of showers. Mostly sunny, with a high near 66. Southeast wind 10 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.

    High: 66 °F

    Slight Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers after 1am. Mostly cloudy, with a low around 53. Southeast wind 16 to 18 mph, with gusts as high as 32 mph. Chance of precipitation is 30%.

    Low: 53 °F

    Mostly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: A chance of showers. Mostly sunny, with a high near 73. Breezy, with a south southeast wind 18 to 21 mph, with gusts as high as 32 mph. Chance of precipitation is 40%.

    High: 73 °F

    Chance
    Showers and
    Breezy

  • Sunday Night

    Sunday Night: A slight chance of showers before 1am. Partly cloudy, with a low around 43. West northwest wind 13 to 16 mph. Chance of precipitation is 20%.

    Low: 43 °F

    Slight Chance
    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 51. South wind 11 to 16 mph, with gusts as high as 30 mph.
Thursday
Mostly sunny, with a high near 72. Breezy, with a south wind 13 to 20 mph, with gusts as high as 33 mph.
Thursday Night
Mostly clear, with a low around 46. West wind 6 to 9 mph becoming north northwest after midnight.
Friday
Sunny, with a high near 62. North wind 8 to 10 mph.
Friday Night
Mostly clear, with a low around 42. Northeast wind 6 to 10 mph becoming southeast after midnight.
Saturday
A slight chance of showers. Mostly sunny, with a high near 66. Southeast wind 10 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.
Saturday Night
A chance of showers after 1am. Mostly cloudy, with a low around 53. Southeast wind 16 to 18 mph, with gusts as high as 32 mph. Chance of precipitation is 30%.
Sunday
A chance of showers. Mostly sunny, with a high near 73. Breezy, with a south southeast wind 18 to 21 mph, with gusts as high as 32 mph. Chance of precipitation is 40%.
Sunday Night
A slight chance of showers before 1am. Partly cloudy, with a low around 43. West northwest wind 13 to 16 mph. Chance of precipitation is 20%.
Columbus Day
Sunny, with a high near 60.
Monday Night
Partly cloudy, with a low around 42.
Tuesday
A slight chance of showers. Partly sunny, with a high near 60. Chance of precipitation is 20%.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 47. Chance of precipitation is 30%.
Wednesday
A chance of showers. Partly sunny, with a high near 65. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Waubay SD
 45.33°N 97.31°W (Elev. 1811 ft)
Last Update:
5:56 pm CDT Oct 8, 2025
Forecast Valid:
6pm CDT Oct 8, 2025-6pm CDT Oct 15, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation