Dangerous Heat in the Southwest; Severe Thunderstorms and Heavy Rain in the Northeast and Mid-Atlantic

Dangerous heat will persist across the Southwest U.S. through Friday with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week. Strong to severe thunderstorms may produce damaging wind, hail, a tornado or two, heavy rain and flash flooding across parts of the Mid-Atlantic and Northeast. Heavy rainfall threat continues across the Gulf Coast. Read More >

Current conditions at

Sisseton, Sisseton Municipal Airport (K8D3)

Lat: 45.67°NLon: 96.99°WElev: 1161ft.

77°F

25°C

Humidity 45%
Wind Speed NA
Barometer 30.09 in (1017.8 mb)
Dewpoint 54°F (12°C)
Visibility NA
Heat Index78°F (26°C)
Last update 27 Aug 4:56 pm CDT
Extended Forecast for

4 Miles SE Sisseton Municipal Airport SD

  • Tonight

    Tonight: Mostly clear, with a low around 53. Calm wind becoming south around 5 mph after midnight.

    Low: 53 °F

    Mostly Clear

  • Friday

    Friday: Increasing clouds, with a high near 82. South southeast wind 6 to 15 mph, with gusts as high as 23 mph.

    High: 82 °F

    Increasing
    Clouds

  • Friday Night

    Friday Night: Showers and thunderstorms before 4am, then showers likely and possibly a thunderstorm between 4am and 5am, then a chance of showers and thunderstorms after 5am.  Low around 63. South wind 9 to 13 mph.  Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 63 °F

    Chance
    Showers then
    Showers

  • Saturday

    Saturday: A chance of showers before 7am.  Mostly sunny, with a high near 84. South southeast wind 7 to 9 mph.  Chance of precipitation is 30%.

    High: 84 °F

    Chance
    Showers then
    Mostly Sunny

  • Saturday Night

    Saturday Night: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am, then a chance of showers and thunderstorms after 1am.  Mostly cloudy, with a low around 64. East wind 3 to 7 mph.  Chance of precipitation is 40%.

    Low: 64 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Sunday

    Sunday: Partly sunny, with a high near 84. North northeast wind 5 to 9 mph becoming east in the afternoon.

    High: 84 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A slight chance of showers and thunderstorms before 1am.  Partly cloudy, with a low around 64. South southeast wind around 7 mph becoming west northwest after midnight.  Chance of precipitation is 20%.

    Low: 64 °F

    Slight Chance
    T-storms

  • Monday

    Monday: Mostly sunny, with a high near 83. Northwest wind 7 to 10 mph.

    High: 83 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A slight chance of showers after 1am.  Partly cloudy, with a low around 61. West southwest wind 5 to 7 mph.  Chance of precipitation is 20%.

    Low: 61 °F

    Mostly Clear
    then Slight
    Chance
    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 53. Calm wind becoming south around 5 mph after midnight.
Friday
Increasing clouds, with a high near 82. South southeast wind 6 to 15 mph, with gusts as high as 23 mph.
Friday Night
Showers and thunderstorms before 4am, then showers likely and possibly a thunderstorm between 4am and 5am, then a chance of showers and thunderstorms after 5am. Low around 63. South wind 9 to 13 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
A chance of showers before 7am. Mostly sunny, with a high near 84. South southeast wind 7 to 9 mph. Chance of precipitation is 30%.
Saturday Night
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 64. East wind 3 to 7 mph. Chance of precipitation is 40%.
Sunday
Partly sunny, with a high near 84. North northeast wind 5 to 9 mph becoming east in the afternoon.
Sunday Night
A slight chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 64. South southeast wind around 7 mph becoming west northwest after midnight. Chance of precipitation is 20%.
Monday
Mostly sunny, with a high near 83. Northwest wind 7 to 10 mph.
Monday Night
A slight chance of showers after 1am. Partly cloudy, with a low around 61. West southwest wind 5 to 7 mph. Chance of precipitation is 20%.
Tuesday
A slight chance of showers after 1pm. Mostly sunny, with a high near 82. Chance of precipitation is 20%.
Tuesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 60. Chance of precipitation is 30%.
Wednesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 83. Chance of precipitation is 20%.
Wednesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 63. Chance of precipitation is 30%.
Thursday
A slight chance of showers. Partly sunny, with a high near 83. Chance of precipitation is 20%.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SE Sisseton Municipal Airport SD
 45.61°N 96.95°W (Elev. 1234 ft)
5:06 pm CDT Aug 27, 2026
5pm CDT Aug 27, 2026-6pm CDT Sep 3, 2026
 
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Additional Resources

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