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

Watertown, Watertown Municipal Airport (KATY)

Lat: 44.9°NLon: 97.15°WElev: 1745ft.

Fair

47°F

8°C

Humidity 74%
Wind Speed SE 7 mph
Barometer 30.23 in (1024.1 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 19 Oct 11:53 pm CDT
Extended Forecast for

8 Miles WNW Castlewood SD

  • Overnight

    Overnight: Clear, with a low around 44. Southeast wind around 7 mph.

    Low: 44 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 70. South wind 9 to 16 mph, with gusts as high as 25 mph.

    High: 70 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 46. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 46 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 73. Calm wind becoming east 5 to 7 mph in the afternoon.

    High: 73 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 50. East wind 5 to 7 mph.

    Low: 50 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 73. South southeast wind 6 to 14 mph, with gusts as high as 22 mph.

    High: 73 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 57. South southeast wind 10 to 16 mph, with gusts as high as 26 mph.

    Low: 57 °F

    Partly Cloudy

  • Friday

    Friday: A slight chance of rain before 1pm.  Partly sunny, with a high near 73. Breezy, with a south southeast wind 20 to 26 mph, with gusts as high as 40 mph.  Chance of precipitation is 20%.

    High: 73 °F

    Slight Chance
    Rain and
    Breezy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 58. Breezy, with a south southeast wind 23 to 26 mph, with gusts as high as 41 mph.

    Low: 58 °F

    Mostly Cloudy
    and Breezy

Detailed Forecast

Overnight
Clear, with a low around 44. Southeast wind around 7 mph.
Tuesday
Sunny, with a high near 70. South wind 9 to 16 mph, with gusts as high as 25 mph.
Tuesday Night
Mostly clear, with a low around 46. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday
Sunny, with a high near 73. Calm wind becoming east 5 to 7 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 50. East wind 5 to 7 mph.
Thursday
Sunny, with a high near 73. South southeast wind 6 to 14 mph, with gusts as high as 22 mph.
Thursday Night
Partly cloudy, with a low around 57. South southeast wind 10 to 16 mph, with gusts as high as 26 mph.
Friday
A slight chance of rain before 1pm. Partly sunny, with a high near 73. Breezy, with a south southeast wind 20 to 26 mph, with gusts as high as 40 mph. Chance of precipitation is 20%.
Friday Night
Mostly cloudy, with a low around 58. Breezy, with a south southeast wind 23 to 26 mph, with gusts as high as 41 mph.
Saturday
A chance of rain, mainly after 1pm. Partly sunny, with a high near 67. Breezy. Chance of precipitation is 40%.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 45. Chance of precipitation is 30%.
Sunday
A slight chance of rain. Mostly sunny, with a high near 58. Chance of precipitation is 20%.
Sunday Night
Partly cloudy, with a low around 42.
Monday
Mostly sunny, with a high near 54.
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ABOUT THIS FORECAST

 
Point Forecast:
8 Miles WNW Castlewood SD
 44.78°N 97.17°W (Elev. 1699 ft)
12:21 am CDT Oct 20, 2026
12am CDT Oct 20, 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