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

Autumn Temperatures for Eastern Third of the Country; Super Typhoon Approaching Guam

Cooler and less humid conditions for the eastern third of the nation as a cold slides off the east coast. Combination of dry and breezy conditions may result in spread of wildfires across the lower Mississippi Valley. In addition, fire weather conditions linger into portions of Southern California. For Guam, a super typhoon is approaching. Read More >

Hazardous Weather Conditions

Current conditions at

Sisseton, Sisseton Municipal Airport (K8D3)

Lat: 45.67°NLon: 96.99°WElev: 1161ft.

Windy

55°F

13°C

Humidity 49%
Wind Speed SW 26 G 41 mph
Barometer 29.89 in (1011.5 mb)
Dewpoint 36°F (2°C)
Visibility NA
Wind Chill49°F (9°C)
Last update 18 Oct 1:56 am CDT
Extended Forecast for

7 Miles NNE Ortley SD

  • Overnight

    Overnight: Mostly clear, with a low around 47. Breezy, with a south southwest wind 18 to 20 mph, with gusts as high as 30 mph.

    Low: 47 °F

    Mostly Clear
    and Breezy

  • Sunday

    Sunday: Sunny, with a high near 65. Southwest wind 6 to 14 mph becoming north northeast in the afternoon. Winds could gust as high as 24 mph.

    High: 65 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 43. North northeast wind 5 to 8 mph.

    Low: 43 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 57. East wind 7 to 10 mph.

    High: 57 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 43. South southeast wind around 7 mph.

    Low: 43 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 63. South wind 8 to 14 mph, with gusts as high as 25 mph.

    High: 63 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 49. South wind 8 to 10 mph, with gusts as high as 21 mph.

    Low: 49 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 66. South southwest wind around 6 mph becoming north northeast in the afternoon.

    High: 66 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 48. North northeast wind around 5 mph becoming light and variable after midnight.

    Low: 48 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 47. Breezy, with a south southwest wind 18 to 20 mph, with gusts as high as 30 mph.
Sunday
Sunny, with a high near 65. Southwest wind 6 to 14 mph becoming north northeast in the afternoon. Winds could gust as high as 24 mph.
Sunday Night
Mostly clear, with a low around 43. North northeast wind 5 to 8 mph.
Monday
Sunny, with a high near 57. East wind 7 to 10 mph.
Monday Night
Mostly clear, with a low around 43. South southeast wind around 7 mph.
Tuesday
Sunny, with a high near 63. South wind 8 to 14 mph, with gusts as high as 25 mph.
Tuesday Night
Mostly clear, with a low around 49. South wind 8 to 10 mph, with gusts as high as 21 mph.
Wednesday
Sunny, with a high near 66. South southwest wind around 6 mph becoming north northeast in the afternoon.
Wednesday Night
Mostly clear, with a low around 48. North northeast wind around 5 mph becoming light and variable after midnight.
Thursday
Sunny, with a high near 73.
Thursday Night
Partly cloudy, with a low around 55.
Friday
A slight chance of showers. Partly sunny, with a high near 74. Breezy. Chance of precipitation is 20%.
Friday Night
A chance of showers. Mostly cloudy, with a low around 56. Breezy. Chance of precipitation is 40%.
Saturday
A chance of showers. Mostly cloudy, with a high near 67. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles NNE Ortley SD
 45.42°N 97.16°W (Elev. 1952 ft)
Last Update:
2:21 am CDT Oct 18, 2026
Forecast Valid:
2am CDT Oct 18, 2026-6pm CDT Oct 24, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation