Sinlaku Continues to Impact the Marianas; Severe Weather from the Central US to the Northeast; Late-Season Snow in the Northwest

Sinlaku continues to bring destructive winds, widespread heavy rain/flooding, and storm surge to the Marianas. Showers and severe thunderstorms are expected from the Northeast to the Mid-Mississippi Valley and to the Central/Southern Plains through Thursday. A front will produce late-season snowfall over the Cascades and Northern Rockies and coastal rain over the Northwest Coast through Thursday. Read More >

Current conditions at

Spearfish / Clyde Ice (KSPF)

Lat: 44.48°NLon: 103.78°WElev: 3898ft.

Fair

39°F

4°C

Humidity 65%
Wind Speed Calm
Barometer 29.74 in
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Last update 15 Apr 1:35 am MDT
Extended Forecast for

3 Miles S Whitewood SD

  • Overnight

    Overnight: Mostly clear, with a low around 39. Southwest wind 7 to 9 mph.

    Low: 39 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 65. Southwest wind 5 to 9 mph becoming northeast in the afternoon. Winds could gust as high as 17 mph.

    High: 65 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 49. Breezy, with a southwest wind 8 to 13 mph increasing to 15 to 20 mph after midnight. Winds could gust as high as 28 mph.

    Low: 49 °F

    Mostly Clear
    then Partly
    Cloudy and
    Breezy

  • Thursday

    Thursday: Showers likely after noon.  Increasing clouds, with a high near 62. Breezy, with a northwest wind 17 to 22 mph, with gusts as high as 32 mph.  Chance of precipitation is 60%.

    High: 62 °F

    Mostly Sunny
    and Breezy
    then Showers
    Likely

  • Thursday Night

    Thursday Night: Rain showers before 8pm, then rain and snow showers between 8pm and 9pm, then snow showers after 9pm.  Low around 25. Blustery, with a northwest wind 18 to 24 mph, with gusts as high as 32 mph.  Chance of precipitation is 90%. New snow accumulation of around an inch possible.

    Low: 25 °F

    Blustery.
    Rain/Snow
    then Snow
    Showers

  • Friday

    Friday: Snow showers likely, mainly before noon.  Mostly cloudy, with a high near 35. Breezy, with a northwest wind 22 to 26 mph, with gusts as high as 37 mph.  Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 35 °F

    Snow Showers
    Likely and
    Breezy

  • Friday Night

    Friday Night: A 20 percent chance of snow showers before midnight.  Partly cloudy, with a low around 23. Blustery, with a northwest wind 14 to 22 mph, with gusts as high as 33 mph.

    Low: 23 °F

    Slight Chance
    Snow Showers
    and Blustery
    then Partly
    Cloudy

  • Saturday

    Saturday: A chance of snow showers, mainly after noon.  Mostly sunny, with a high near 42. Breezy, with a northwest wind 17 to 22 mph, with gusts as high as 36 mph.

    High: 42 °F

    Chance Snow
    Showers and
    Breezy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 29.

    Low: 29 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 39. Southwest wind 7 to 9 mph.
Wednesday
Sunny, with a high near 65. Southwest wind 5 to 9 mph becoming northeast in the afternoon. Winds could gust as high as 17 mph.
Wednesday Night
Mostly clear, with a low around 49. Breezy, with a southwest wind 8 to 13 mph increasing to 15 to 20 mph after midnight. Winds could gust as high as 28 mph.
Thursday
Showers likely after noon. Increasing clouds, with a high near 62. Breezy, with a northwest wind 17 to 22 mph, with gusts as high as 32 mph. Chance of precipitation is 60%.
Thursday Night
Rain showers before 8pm, then rain and snow showers between 8pm and 9pm, then snow showers after 9pm. Low around 25. Blustery, with a northwest wind 18 to 24 mph, with gusts as high as 32 mph. Chance of precipitation is 90%. New snow accumulation of around an inch possible.
Friday
Snow showers likely, mainly before noon. Mostly cloudy, with a high near 35. Breezy, with a northwest wind 22 to 26 mph, with gusts as high as 37 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Friday Night
A 20 percent chance of snow showers before midnight. Partly cloudy, with a low around 23. Blustery, with a northwest wind 14 to 22 mph, with gusts as high as 33 mph.
Saturday
A chance of snow showers, mainly after noon. Mostly sunny, with a high near 42. Breezy, with a northwest wind 17 to 22 mph, with gusts as high as 36 mph.
Saturday Night
Mostly clear, with a low around 29.
Sunday
Sunny, with a high near 60.
Sunday Night
Mostly clear, with a low around 40.
Monday
Sunny, with a high near 70.
Monday Night
Mostly clear, with a low around 46.
Tuesday
Sunny, with a high near 69.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles S Whitewood SD
 44.42°N 103.63°W (Elev. 4800 ft)
12:31 am MDT Apr 15, 2026
2am MDT Apr 15, 2026-6pm MDT Apr 21, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

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