Prolonged Atmospheric River Will Impact the Northwest Early this Week

A weather system in the Pacific Northwest will produce rain throughout the day, before a potent atmospheric river produces a prolonged round of heavy rainfall, widespread urban and river flooding, and high elevation snow to the region Monday through Wednesday. Showers and thunderstorms may produce isolated damaging winds, a brief tornado, and locally heavy rainfall across parts of Florida today. Read More >

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Overcast

39°F

4°C

Humidity 52%
Wind Speed W 7 mph
Barometer 29.91 in
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Wind Chill34°F (1°C)
Last update 8 Dec 4:15 am MST
Extended Forecast for

3 Miles NE Spearfish SD

High Wind Watch December 9, 08:00am until December 9, 11:00pm
Click here for hazard details and duration
High Wind Watch
  • Overnight

    Overnight: A 30 percent chance of snow.  Mostly cloudy, with a low around 33. West wind around 10 mph, with gusts as high as 20 mph.

    Low: 33 °F

    Chance Snow

  • Monday

    Monday: Mostly sunny, with a high near 45. Breezy, with a west wind 17 to 23 mph, with gusts as high as 34 mph.

    High: 45 °F

    Mostly Sunny
    and Breezy

  • Monday Night

    Monday Night: A slight chance of snow between 11pm and midnight, then a slight chance of rain after midnight.  Mostly cloudy, with a temperature rising to around 43 by 5am. Breezy, with a west wind 14 to 23 mph, with gusts as high as 32 mph.  Chance of precipitation is 20%.

    Low: 39 °F

    Slight Chance
    Snow then
    Slight Chance
    Rain and
    Breezy

  • Tuesday

    Tuesday: Rain likely before 4pm, then rain and snow likely.  Mostly cloudy, with a temperature rising to near 48 by 10am, then falling to around 37 during the remainder of the day. Windy, with a west wind 28 to 36 mph, with gusts as high as 55 mph.  Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 48 °F

    Windy. Rain
    Likely then
    Rain/Snow
    Likely

  • Tuesday Night

    Tuesday Night: A 30 percent chance of snow, mainly before 11pm.  Mostly cloudy, with a low around 28. Breezy, with a west wind 21 to 26 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 40 mph.

    Low: 28 °F

    Chance Snow
    and Breezy

  • Wednesday

    Wednesday: Snow before 1pm, then rain and snow between 1pm and 3pm, then rain after 3pm.  High near 40. Southwest wind 7 to 11 mph becoming southeast in the afternoon. Winds could gust as high as 21 mph.  Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    High: 40 °F

    Snow then
    Rain/Snow

  • Wednesday Night

    Wednesday Night: Rain before 3am, then rain and snow likely.  Low around 27. West wind 13 to 17 mph, with gusts as high as 25 mph.  Chance of precipitation is 80%.

    Low: 27 °F

    Rain then
    Rain/Snow
    Likely

  • Thursday

    Thursday: Snow likely.  Mostly cloudy, with a high near 35. Northwest wind 13 to 15 mph, with gusts as high as 23 mph.

    High: 35 °F

    Snow Likely

  • Thursday Night

    Thursday Night: Snow likely.  Cloudy, with a low around 8.

    Low: 8 °F

    Snow Likely

Detailed Forecast

Overnight
A 30 percent chance of snow. Mostly cloudy, with a low around 33. West wind around 10 mph, with gusts as high as 20 mph.
Monday
Mostly sunny, with a high near 45. Breezy, with a west wind 17 to 23 mph, with gusts as high as 34 mph.
Monday Night
A slight chance of snow between 11pm and midnight, then a slight chance of rain after midnight. Mostly cloudy, with a temperature rising to around 43 by 5am. Breezy, with a west wind 14 to 23 mph, with gusts as high as 32 mph. Chance of precipitation is 20%.
Tuesday
Rain likely before 4pm, then rain and snow likely. Mostly cloudy, with a temperature rising to near 48 by 10am, then falling to around 37 during the remainder of the day. Windy, with a west wind 28 to 36 mph, with gusts as high as 55 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Tuesday Night
A 30 percent chance of snow, mainly before 11pm. Mostly cloudy, with a low around 28. Breezy, with a west wind 21 to 26 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 40 mph.
Wednesday
Snow before 1pm, then rain and snow between 1pm and 3pm, then rain after 3pm. High near 40. Southwest wind 7 to 11 mph becoming southeast in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Wednesday Night
Rain before 3am, then rain and snow likely. Low around 27. West wind 13 to 17 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.
Thursday
Snow likely. Mostly cloudy, with a high near 35. Northwest wind 13 to 15 mph, with gusts as high as 23 mph.
Thursday Night
Snow likely. Cloudy, with a low around 8.
Friday
A chance of snow. Mostly cloudy, with a high near 15.
Friday Night
A chance of snow. Mostly cloudy, with a low around 8.
Saturday
A chance of snow. Mostly cloudy, with a high near 27.
Saturday Night
A slight chance of snow. Partly cloudy, with a low around 15.
Sunday
Mostly sunny, with a high near 43.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NE Spearfish SD
 44.52°N 103.82°W (Elev. 3999 ft)
3:16 am MST Dec 8, 2025
4am MST Dec 8, 2025-6pm MST Dec 14, 2025
 
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Additional Resources

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