Hazardous Coastal Conditions for the Mid-Atlantic; Storm System Approaching Southern Alaska

A Nor'easter will create hazardous marine and coastal conditions along the Mid-Atlantic coast through mid-week, with significant coastal flooding and beach erosion possible. Meanwhile, another strong storm system is forecast to bring high winds and heavy precipitation to portions of southern Alaska. Elsewhere, relatively benign weather is expected through the first half of the work week. Read More >

Current conditions at

Chamberlain, Chamberlain Municipal Airport (K9V9)

Lat: 43.77°NLon: 99.32°WElev: 1693ft.

Fair

47°F

8°C

Humidity 85%
Wind Speed SE 6 mph
Barometer 30.20 in
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 19 Oct 10:35 pm CDT
Extended Forecast for

Fort Thompson SD

  • Tonight

    Tonight: Mostly clear, with a low around 45. East southeast wind around 8 mph.

    Low: 45 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 71. South southeast wind 7 to 15 mph, with gusts as high as 23 mph.

    High: 71 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 48. South southeast wind 5 to 10 mph.

    Low: 48 °F

    Mostly Clear

  • Wednesday

    Wednesday: Partly sunny, then gradually becoming sunny, with a high near 73. Calm wind becoming east northeast 5 to 8 mph in the afternoon.

    High: 73 °F

    Becoming
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 50. East northeast wind around 6 mph.

    Low: 50 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 74. South southeast wind 5 to 10 mph increasing to 11 to 16 mph in the afternoon. Winds could gust as high as 25 mph.

    High: 74 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 58. Southeast wind around 15 mph, with gusts as high as 25 mph.

    Low: 58 °F

    Partly Cloudy

  • Friday

    Friday: A slight chance of rain before 1pm.  Partly sunny, with a high near 77. Breezy, with a south southeast wind 17 to 24 mph, with gusts as high as 36 mph.  Chance of precipitation is 20%.

    High: 77 °F

    Slight Chance
    Rain and
    Breezy

  • Friday Night

    Friday Night: A chance of rain, mainly before 1am.  Partly cloudy, with a low around 56. Breezy, with a south southeast wind 13 to 22 mph, with gusts as high as 34 mph.  Chance of precipitation is 30%.

    Low: 56 °F

    Chance Rain
    and Breezy

Detailed Forecast

Tonight
Mostly clear, with a low around 45. East southeast wind around 8 mph.
Tuesday
Sunny, with a high near 71. South southeast wind 7 to 15 mph, with gusts as high as 23 mph.
Tuesday Night
Mostly clear, with a low around 48. South southeast wind 5 to 10 mph.
Wednesday
Partly sunny, then gradually becoming sunny, with a high near 73. Calm wind becoming east northeast 5 to 8 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 50. East northeast wind around 6 mph.
Thursday
Sunny, with a high near 74. South southeast wind 5 to 10 mph increasing to 11 to 16 mph in the afternoon. Winds could gust as high as 25 mph.
Thursday Night
Partly cloudy, with a low around 58. Southeast wind around 15 mph, with gusts as high as 25 mph.
Friday
A slight chance of rain before 1pm. Partly sunny, with a high near 77. Breezy, with a south southeast wind 17 to 24 mph, with gusts as high as 36 mph. Chance of precipitation is 20%.
Friday Night
A chance of rain, mainly before 1am. Partly cloudy, with a low around 56. Breezy, with a south southeast wind 13 to 22 mph, with gusts as high as 34 mph. Chance of precipitation is 30%.
Saturday
A slight chance of rain after 1pm. Partly sunny, with a high near 63. Chance of precipitation is 20%.
Saturday Night
A slight chance of rain. Mostly cloudy, with a low around 42. Chance of precipitation is 20%.
Sunday
A slight chance of rain. Mostly sunny, with a high near 59. Chance of precipitation is 20%.
Sunday Night
Mostly clear, with a low around 42.
Monday
Mostly sunny, with a high near 57.
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ABOUT THIS FORECAST

 
Point Forecast:
Fort Thompson SD
 44.05°N 99.43°W (Elev. 1391 ft)
10:16 pm CDT Oct 19, 2026
10pm CDT Oct 19, 2026-6pm CDT Oct 26, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database