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

46°F

8°C

Humidity 62%
Wind Speed S 12 mph
Barometer 29.79 in
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill40°F (4°C)
Last update 14 Apr 7:35 pm MDT
Extended Forecast for

3 Miles WSW Lead SD

  • Tonight

    Tonight: Scattered rain and snow showers before 8pm.  Mostly clear, with a low around 35. Southwest wind 5 to 8 mph, with gusts as high as 16 mph.  Chance of precipitation is 40%. Little or no snow accumulation expected.

    Low: 35 °F

    Scattered
    Rain/Snow
    then Mostly
    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 58. Southwest wind 6 to 8 mph, with gusts as high as 18 mph.

    High: 58 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 43. Southwest wind 7 to 17 mph, with gusts as high as 31 mph.

    Low: 43 °F

    Mostly Clear

  • Thursday

    Thursday: Showers likely after noon.  Increasing clouds, with a high near 56. Southwest wind 11 to 17 mph becoming northwest in the afternoon. Winds could gust as high as 33 mph.  Chance of precipitation is 70%.

    High: 56 °F

    Mostly Sunny
    then Showers
    Likely

  • Thursday Night

    Thursday Night: Rain showers before 8pm, then snow showers.  Low around 20. Northwest wind 13 to 16 mph, with gusts as high as 31 mph.  Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    Low: 20 °F

    Rain/Snow
    then Snow
    Showers

  • Friday

    Friday: Snow showers likely.  Mostly cloudy, with a high near 28. Northwest wind 14 to 17 mph, with gusts as high as 34 mph.  Chance of precipitation is 70%. New snow accumulation of around an inch possible.

    High: 28 °F

    Snow Showers
    Likely

  • Friday Night

    Friday Night: A 20 percent chance of snow showers before midnight.  Mostly cloudy, with a low around 17. Northwest wind 15 to 18 mph, with gusts as high as 34 mph.

    Low: 17 °F

    Slight Chance
    Snow Showers
    then Partly
    Cloudy

  • Saturday

    Saturday: A chance of snow showers.  Mostly sunny, with a high near 35. Northwest wind 14 to 18 mph, with gusts as high as 33 mph.

    High: 35 °F

    Chance Snow
    Showers

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 23.

    Low: 23 °F

    Mostly Clear

Detailed Forecast

Tonight
Scattered rain and snow showers before 8pm. Mostly clear, with a low around 35. Southwest wind 5 to 8 mph, with gusts as high as 16 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.
Wednesday
Sunny, with a high near 58. Southwest wind 6 to 8 mph, with gusts as high as 18 mph.
Wednesday Night
Mostly clear, with a low around 43. Southwest wind 7 to 17 mph, with gusts as high as 31 mph.
Thursday
Showers likely after noon. Increasing clouds, with a high near 56. Southwest wind 11 to 17 mph becoming northwest in the afternoon. Winds could gust as high as 33 mph. Chance of precipitation is 70%.
Thursday Night
Rain showers before 8pm, then snow showers. Low around 20. Northwest wind 13 to 16 mph, with gusts as high as 31 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Friday
Snow showers likely. Mostly cloudy, with a high near 28. Northwest wind 14 to 17 mph, with gusts as high as 34 mph. Chance of precipitation is 70%. New snow accumulation of around an inch possible.
Friday Night
A 20 percent chance of snow showers before midnight. Mostly cloudy, with a low around 17. Northwest wind 15 to 18 mph, with gusts as high as 34 mph.
Saturday
A chance of snow showers. Mostly sunny, with a high near 35. Northwest wind 14 to 18 mph, with gusts as high as 33 mph.
Saturday Night
Mostly clear, with a low around 23.
Sunday
Sunny, with a high near 54.
Sunday Night
Mostly clear, with a low around 33.
Monday
Sunny, with a high near 64.
Monday Night
Partly cloudy, with a low around 43.
Tuesday
A slight chance of showers. Mostly sunny, with a high near 65.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WSW Lead SD
 44.35°N 103.83°W (Elev. 6112 ft)
6:26 pm MDT Apr 14, 2026
7pm MDT Apr 14, 2026-6pm MDT Apr 21, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database