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

50°F

10°C

Humidity 66%
Wind Speed NE 5 mph
Barometer 30.19 in
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Wind Chill48°F (9°C)
Last update 18 Oct 11:15 pm CDT
Extended Forecast for

2 Miles W Fort Thompson SD

  • Tonight

    Tonight: Partly cloudy, with a low around 43. Northeast wind 6 to 9 mph.

    Low: 43 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 63. East southeast wind 8 to 10 mph.

    High: 63 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 44. Southeast wind around 8 mph.

    Low: 44 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 69. South southeast wind 8 to 15 mph, with gusts as high as 24 mph.

    High: 69 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 49. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 49 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 70. Calm wind becoming north northeast 5 to 8 mph in the afternoon.

    High: 70 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 48. Northeast wind 3 to 6 mph.

    Low: 48 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 73. Southeast wind 5 to 10 mph increasing to 11 to 16 mph in the afternoon. Winds could gust as high as 24 mph.

    High: 73 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 57. Southeast wind 15 to 17 mph, with gusts as high as 26 mph.

    Low: 57 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 43. Northeast wind 6 to 9 mph.
Monday
Sunny, with a high near 63. East southeast wind 8 to 10 mph.
Monday Night
Mostly clear, with a low around 44. Southeast wind around 8 mph.
Tuesday
Sunny, with a high near 69. South southeast wind 8 to 15 mph, with gusts as high as 24 mph.
Tuesday Night
Mostly clear, with a low around 49. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday
Sunny, with a high near 70. Calm wind becoming north northeast 5 to 8 mph in the afternoon.
Wednesday Night
Clear, with a low around 48. Northeast wind 3 to 6 mph.
Thursday
Sunny, with a high near 73. Southeast wind 5 to 10 mph increasing to 11 to 16 mph in the afternoon. Winds could gust as high as 24 mph.
Thursday Night
Partly cloudy, with a low around 57. Southeast wind 15 to 17 mph, with gusts as high as 26 mph.
Friday
A chance of showers, mainly before 1pm. Partly sunny, with a high near 76. Breezy. Chance of precipitation is 30%.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 55. Breezy. Chance of precipitation is 40%.
Saturday
A chance of showers. Mostly sunny, with a high near 64. Chance of precipitation is 30%.
Saturday Night
Partly cloudy, with a low around 45.
Sunday
Mostly sunny, with a high near 62.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles W Fort Thompson SD
 44.05°N 99.46°W (Elev. 1365 ft)
11:21 pm CDT Oct 18, 2026
11pm CDT Oct 18, 2026-6pm CDT Oct 25, 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