Strong Atmospheric River Bringing Heavy Rain to the Pacific Northwest; Areas of Snow in the North-Central and Eastern U.S.

A strong atmospheric river will bring prolonged heavy rainfall along with gusty winds to the Pacific Northwest through much of this week. The heavy rainfall may lead to widespread urban and river flooding. Accumulating snow is expected over parts of the central Appalachians and Mid-Atlantic today as well as the Upper Midwest and the Upper Great Lakes this evening into Tuesday. Read More >

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Fair

45°F

7°C

Humidity 43%
Wind Speed W 14 mph
Barometer 29.94 in
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 8 Dec 3:35 pm MST
Extended Forecast for

3 Miles NE Spearfish SD

High Wind Warning December 9, 08:00am until December 10, 02:00am
Click here for hazard details and duration
High Wind Warning
  • Tonight

    Tonight: Mostly cloudy, with a temperature falling to near 39 by midnight, then rising to around 45 during the remainder of the night. Breezy, with a west wind 14 to 23 mph, with gusts as high as 32 mph.

    Low: 39 °F

    Mostly Cloudy
    then Mostly
    Cloudy and
    Breezy

  • Tuesday

    Tuesday: Rain likely, mainly after 11am.  Mostly cloudy, with a temperature rising to near 49 by 10am, then falling to around 38 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%.

    High: 49 °F

    Rain Likely
    and Windy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 28. Wind chill values as low as 19. Breezy, with a west wind 21 to 26 mph decreasing to 14 to 19 mph after midnight. Winds could gust as high as 43 mph.

    Low: 28 °F

    Mostly Cloudy
    and Breezy
    then Mostly
    Cloudy

  • Wednesday

    Wednesday: Snow before 1pm, then rain and snow between 1pm and 2pm, then rain after 2pm.  High near 41. Wind chill values as low as 20. Southwest wind 8 to 15 mph becoming southeast in the morning. Winds could gust as high as 20 mph.  Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    High: 41 °F

    Snow then
    Rain/Snow

  • Wednesday Night

    Wednesday Night: Rain.  Steady temperature around 40. West wind 14 to 16 mph, with gusts as high as 26 mph.  Chance of precipitation is 80%.

    Low: 40 °F

    Rain

  • Thursday

    Thursday: Rain and snow likely, becoming all snow after 4pm.  Cloudy, with a high near 42. West wind around 15 mph, with gusts as high as 24 mph.  Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 42 °F

    Rain Likely
    then
    Rain/Snow
    Likely

  • Thursday Night

    Thursday Night: Snow likely.  Cloudy, with a low around 9. Northwest wind 11 to 14 mph, with gusts as high as 22 mph.  Chance of precipitation is 70%.

    Low: 9 °F

    Snow Likely

  • Friday

    Friday: Snow likely, mainly before 11am.  Cloudy, with a high near 15. Northwest wind around 9 mph becoming east in the afternoon. Winds could gust as high as 16 mph.

    High: 15 °F

    Snow Likely

  • Friday Night

    Friday Night: A chance of snow.  Cloudy, with a low around 9.

    Low: 9 °F

    Chance Snow

Detailed Forecast

Tonight
Mostly cloudy, with a temperature falling to near 39 by midnight, then rising to around 45 during the remainder of the night. Breezy, with a west wind 14 to 23 mph, with gusts as high as 32 mph.
Tuesday
Rain likely, mainly after 11am. Mostly cloudy, with a temperature rising to near 49 by 10am, then falling to around 38 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%.
Tuesday Night
Mostly cloudy, with a low around 28. Wind chill values as low as 19. Breezy, with a west wind 21 to 26 mph decreasing to 14 to 19 mph after midnight. Winds could gust as high as 43 mph.
Wednesday
Snow before 1pm, then rain and snow between 1pm and 2pm, then rain after 2pm. High near 41. Wind chill values as low as 20. Southwest wind 8 to 15 mph becoming southeast in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Wednesday Night
Rain. Steady temperature around 40. West wind 14 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 80%.
Thursday
Rain and snow likely, becoming all snow after 4pm. Cloudy, with a high near 42. West wind around 15 mph, with gusts as high as 24 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Thursday Night
Snow likely. Cloudy, with a low around 9. Northwest wind 11 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 70%.
Friday
Snow likely, mainly before 11am. Cloudy, with a high near 15. Northwest wind around 9 mph becoming east in the afternoon. Winds could gust as high as 16 mph.
Friday Night
A chance of snow. Cloudy, with a low around 9.
Saturday
A slight chance of snow before 11am. Mostly cloudy, with a high near 25.
Saturday Night
Mostly cloudy, with a low around 14.
Sunday
Partly sunny, with a high near 41.
Sunday Night
Partly cloudy, with a low around 26.
Monday
Mostly sunny, with a high near 41.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NE Spearfish SD
 44.52°N 103.82°W (Elev. 3999 ft)
3:22 pm MST Dec 8, 2025
3pm MST Dec 8, 2025-6pm MST Dec 15, 2025
 
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