Autumn Temperatures for Eastern Third of the Country; Developing Offshore Coastal Storm

Cooler and less humid conditions for most of the eastern third of the nation as high pressure dominates the weather pattern. Otherwise, rather tranquil weather for most of the nation for the end of the weekend into the start of this week. We continue to monitor a developing coastal storm offshore of the Carolinas; Coastal flooding and beach erosion possible along portions of the Mid-Atlantic. Read More >

Current conditions at

Sisseton, Sisseton Municipal Airport (K8D3)

Lat: 45.67°NLon: 96.99°WElev: 1161ft.

63°F

17°C

Humidity 38%
Wind Speed NW 13 mph
Barometer 30.01 in (1015.7 mb)
Dewpoint 37°F (3°C)
Visibility NA
Last update 18 Oct 10:56 am CDT
Extended Forecast for

4 Miles SE Grenville SD

  • Today

    Today: Sunny, with a high near 65. West southwest wind 6 to 10 mph becoming north northeast in the afternoon. Winds could gust as high as 20 mph.

    High: 65 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 43. North northeast wind 6 to 9 mph.

    Low: 43 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 58. East wind around 10 mph, with gusts as high as 21 mph.

    High: 58 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 45. South southeast wind around 8 mph.

    Low: 45 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 63. South wind 9 to 14 mph, with gusts as high as 25 mph.

    High: 63 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 50. South wind 8 to 11 mph, with gusts as high as 21 mph.

    Low: 50 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 65. Light and variable wind becoming northeast 5 to 7 mph in the afternoon.

    High: 65 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 49. Northeast wind 5 to 7 mph.

    Low: 49 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 68. East southeast wind 6 to 11 mph, with gusts as high as 22 mph.

    High: 68 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 65. West southwest wind 6 to 10 mph becoming north northeast in the afternoon. Winds could gust as high as 20 mph.
Tonight
Mostly clear, with a low around 43. North northeast wind 6 to 9 mph.
Monday
Sunny, with a high near 58. East wind around 10 mph, with gusts as high as 21 mph.
Monday Night
Clear, with a low around 45. South southeast wind around 8 mph.
Tuesday
Sunny, with a high near 63. South wind 9 to 14 mph, with gusts as high as 25 mph.
Tuesday Night
Mostly clear, with a low around 50. South wind 8 to 11 mph, with gusts as high as 21 mph.
Wednesday
Sunny, with a high near 65. Light and variable wind becoming northeast 5 to 7 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 49. Northeast wind 5 to 7 mph.
Thursday
Sunny, with a high near 68. East southeast wind 6 to 11 mph, with gusts as high as 22 mph.
Thursday Night
Partly cloudy, with a low around 56.
Friday
A chance of showers. Partly sunny, with a high near 69. Breezy. Chance of precipitation is 30%.
Friday Night
A chance of showers. Mostly cloudy, with a low around 57. Breezy. Chance of precipitation is 40%.
Saturday
A chance of showers. Partly sunny, with a high near 63. Breezy. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SE Grenville SD
 45.42°N 97.34°W (Elev. 1791 ft)
11:01 am CDT Oct 18, 2026
11am CDT Oct 18, 2026-6pm CDT Oct 24, 2026
 
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