Heavy Rainfall and Severe Thunderstorm Threats for the Plains and Southeast

A frontal boundary extending from the western High Plains to the Southeast will focus additional showers and thunderstorms this weekend. Some of these storms may become severe, alongside frequent lightning, and isolated instances of flash flooding. Meanwhile dry conditions will continue for the Great Basin where fire weather concerns linger. For the mid-Atlantic and Northeast, seasonable weather. Read More >

Hazardous Weather Conditions

Current conditions at

Sisseton, Sisseton Municipal Airport (K8D3)

Lat: 45.67°NLon: 96.99°WElev: 1161ft.

66°F

19°C

Humidity 93%
Wind Speed SE 8 G 18 mph
Barometer 30.04 in (1016.3 mb)
Dewpoint 64°F (18°C)
Visibility NA
Last update 3 Aug 11:56 am CDT
Extended Forecast for

Sisseton SD

  • This Afternoon

    This Afternoon: A chance of showers and thunderstorms.  Cloudy, with a high near 71. South southeast wind 9 to 11 mph, with gusts as high as 20 mph.  Chance of precipitation is 50%.

    High: 71 °F

    Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms, mainly after 11pm.  Mostly cloudy, with a low around 62. Southeast wind 7 to 10 mph.  Chance of precipitation is 40%.

    Low: 62 °F

    Chance
    T-storms

  • Monday

    Monday: A chance of showers and thunderstorms, mainly after 1pm.  Mostly cloudy, with a high near 74. South southeast wind 7 to 10 mph.  Chance of precipitation is 50%.

    High: 74 °F

    Chance
    Showers then
    Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before 10pm, then a slight chance of showers and thunderstorms after 1am.  Mostly cloudy, with a low around 63. South southeast wind around 10 mph.  Chance of precipitation is 30%.

    Low: 63 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A slight chance of showers and thunderstorms.  Partly sunny, with a high near 80. South southeast wind 10 to 17 mph, with gusts as high as 26 mph.  Chance of precipitation is 20%.

    High: 80 °F

    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am.  Mostly cloudy, with a low around 67. South wind 14 to 16 mph, with gusts as high as 25 mph.  Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 67 °F

    Chance
    T-storms then
    Showers
    Likely

  • Wednesday

    Wednesday: A chance of showers and thunderstorms before 1pm.  Mostly sunny, with a high near 85. South wind 10 to 13 mph.  Chance of precipitation is 30%.

    High: 85 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms after 1am.  Mostly clear, with a low around 67. South southeast wind 6 to 9 mph.  Chance of precipitation is 20%.

    Low: 67 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Thursday

    Thursday: Mostly sunny, with a high near 86. South southeast wind 6 to 11 mph.

    High: 86 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A chance of showers and thunderstorms. Cloudy, with a high near 71. South southeast wind 9 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.
Tonight
A chance of showers and thunderstorms, mainly after 11pm. Mostly cloudy, with a low around 62. Southeast wind 7 to 10 mph. Chance of precipitation is 40%.
Monday
A chance of showers and thunderstorms, mainly after 1pm. Mostly cloudy, with a high near 74. South southeast wind 7 to 10 mph. Chance of precipitation is 50%.
Monday Night
A chance of showers and thunderstorms before 10pm, then a slight chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 63. South southeast wind around 10 mph. Chance of precipitation is 30%.
Tuesday
A slight chance of showers and thunderstorms. Partly sunny, with a high near 80. South southeast wind 10 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.
Tuesday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 67. South wind 14 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
A chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 85. South wind 10 to 13 mph. Chance of precipitation is 30%.
Wednesday Night
A slight chance of showers and thunderstorms after 1am. Mostly clear, with a low around 67. South southeast wind 6 to 9 mph. Chance of precipitation is 20%.
Thursday
Mostly sunny, with a high near 86. South southeast wind 6 to 11 mph.
Thursday Night
A chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 69. Chance of precipitation is 30%.
Friday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 88. Chance of precipitation is 20%.
Friday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 67. Chance of precipitation is 30%.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 82. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
Sisseton SD
 45.66°N 97.04°W (Elev. 1201 ft)
11:46 am CDT Aug 3, 2025
12pm CDT Aug 3, 2025-6pm CDT Aug 9, 2025
 
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Additional Resources

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