Thunderstorms and Heavy Rain in the Mid-South; Heat Continues in the Southeast and Southwest

Severe thunderstorms and heavy rain are expected across portions of the mid-Mississippi Valley into the Ohio Valley and portions of Arizona. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that, when combined with oppressive dew points, little-to-no relief from the scorching daytime highs will be available. Read More >

Current conditions at

Sisseton, Sisseton Municipal Airport (K8D3)

Lat: 45.67°NLon: 96.99°WElev: 1161ft.

55°F

13°C

Humidity 96%
Wind Speed Calm
Barometer 29.96 in (1013.6 mb)
Dewpoint 54°F (12°C)
Visibility NA
Last update 19 Aug 2:56 am CDT
Extended Forecast for

Sisseton Municipal Airport SD

  • Overnight

    Overnight: Partly cloudy, with a low around 52. Calm wind.

    Low: 52 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 80. Calm wind becoming south around 6 mph in the morning.

    High: 80 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of showers, then a chance of showers and thunderstorms after 4am.  Partly cloudy, with a low around 62. Northeast wind 5 to 10 mph becoming south southwest in the evening.  Chance of precipitation is 30%.

    Low: 62 °F

    Mostly Clear
    then Chance
    Showers

  • Thursday

    Thursday: A slight chance of showers and thunderstorms before 7am.  Mostly sunny, with a high near 84. Southwest wind 11 to 15 mph becoming west northwest in the afternoon. Winds could gust as high as 23 mph.  Chance of precipitation is 10%.

    High: 84 °F

    Slight Chance
    T-storms then
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 60. West northwest wind 5 to 11 mph.

    Low: 60 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 84. North northwest wind 3 to 8 mph.

    High: 84 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 58. North northwest wind 6 to 9 mph.

    Low: 58 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 79. North wind 6 to 10 mph.

    High: 79 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 57. North northeast wind 5 to 7 mph becoming light and variable  after midnight.

    Low: 57 °F

    Partly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 52. Calm wind.
Wednesday
Mostly sunny, with a high near 80. Calm wind becoming south around 6 mph in the morning.
Wednesday Night
A slight chance of showers, then a chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 62. Northeast wind 5 to 10 mph becoming south southwest in the evening. Chance of precipitation is 30%.
Thursday
A slight chance of showers and thunderstorms before 7am. Mostly sunny, with a high near 84. Southwest wind 11 to 15 mph becoming west northwest in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 10%.
Thursday Night
Mostly clear, with a low around 60. West northwest wind 5 to 11 mph.
Friday
Sunny, with a high near 84. North northwest wind 3 to 8 mph.
Friday Night
Mostly clear, with a low around 58. North northwest wind 6 to 9 mph.
Saturday
Sunny, with a high near 79. North wind 6 to 10 mph.
Saturday Night
Partly cloudy, with a low around 57. North northeast wind 5 to 7 mph becoming light and variable after midnight.
Sunday
Partly sunny, with a high near 79.
Sunday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 60. Chance of precipitation is 20%.
Monday
Mostly sunny, with a high near 84.
Monday Night
A slight chance of showers and thunderstorms. Mostly clear, with a low around 63. Chance of precipitation is 20%.
Tuesday
Sunny, with a high near 84.
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ABOUT THIS FORECAST

 
Point Forecast:
Sisseton Municipal Airport SD
 45.68°N 97.01°W (Elev. 1152 ft)
2:36 am CDT Aug 19, 2026
3am CDT Aug 19, 2026-6pm CDT Aug 25, 2026
 
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Additional Resources

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