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

67°F

19°C

Humidity 42%
Wind Speed NE 7 mph
Barometer 30.10 in
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 18 Oct 5:35 pm CDT
Extended Forecast for

Iona SD

  • Tonight

    Tonight: Partly cloudy, with a low around 40. North northeast wind 9 to 13 mph.

    Low: 40 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 62. Northeast wind 8 to 11 mph becoming east southeast in the afternoon.

    High: 62 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 44. South southeast wind 9 to 11 mph.

    Low: 44 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 69. Breezy, with a south wind 13 to 20 mph, with gusts as high as 29 mph.

    High: 69 °F

    Sunny then
    Sunny and
    Breezy

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 49. South southeast wind 11 to 16 mph.

    Low: 49 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 70. Southwest wind around 9 mph becoming north in the afternoon.

    High: 70 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 48. Northeast wind 5 to 7 mph becoming east southeast after midnight.

    Low: 48 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 73. Breezy, with a southeast wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 29 mph.

    High: 73 °F

    Mostly Sunny
    then Sunny
    and Breezy

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 58. Breezy, with a south southeast wind 18 to 28 mph, with gusts as high as 38 mph.

    Low: 58 °F

    Partly Cloudy
    and Breezy

Detailed Forecast

Tonight
Partly cloudy, with a low around 40. North northeast wind 9 to 13 mph.
Monday
Sunny, with a high near 62. Northeast wind 8 to 11 mph becoming east southeast in the afternoon.
Monday Night
Mostly clear, with a low around 44. South southeast wind 9 to 11 mph.
Tuesday
Sunny, with a high near 69. Breezy, with a south wind 13 to 20 mph, with gusts as high as 29 mph.
Tuesday Night
Mostly clear, with a low around 49. South southeast wind 11 to 16 mph.
Wednesday
Sunny, with a high near 70. Southwest wind around 9 mph becoming north in the afternoon.
Wednesday Night
Clear, with a low around 48. Northeast wind 5 to 7 mph becoming east southeast after midnight.
Thursday
Sunny, with a high near 73. Breezy, with a southeast wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 29 mph.
Thursday Night
Partly cloudy, with a low around 58. Breezy, with a south southeast wind 18 to 28 mph, with gusts as high as 38 mph.
Friday
A slight chance of showers before 1pm. Partly sunny, with a high near 76. Windy. Chance of precipitation is 20%.
Friday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 55. Windy. Chance of precipitation is 50%.
Saturday
A chance of showers. Partly sunny, with a high near 64. Breezy. Chance of precipitation is 30%.
Saturday Night
A slight chance of showers. Partly cloudy, with a low around 44. Chance of precipitation is 20%.
Sunday
A slight chance of showers. Mostly sunny, with a high near 62. Chance of precipitation is 20%.
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ABOUT THIS FORECAST

 
Point Forecast:
Iona SD
 43.54°N 99.44°W (Elev. 1923 ft)
5:21 pm CDT Oct 18, 2026
5pm 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