National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Severe Thunderstorms and Heavy Rainfall in the Ohio Valley and Great Lakes; Winter Weather in the Northern Tier

A slow moving front extending from the Great Lakes region into the Plains will bring snow, wintry mix, and ice accumulation north of the front from the Upper Midwest into New England, and severe weather and heavy rain south of the front. Scattered severe thunderstorms with damaging gusts, severe hail, and heavy rain are expected across parts of the Great Lakes/Midwest through tonight. Read More >

Hazardous Weather Conditions

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Overcast

34°F

1°C

Humidity 60%
Wind Speed E 17 mph
Barometer 30.08 in
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill23°F (-5°C)
Last update 31 Mar 2:15 pm MDT
Extended Forecast for

Spearfish SD

  • This Afternoon

    This Afternoon: A 20 percent chance of snow after 3pm. Partly sunny, with a high near 43. East wind 14 to 18 mph, with gusts as high as 29 mph.

    High: 43 °F

    Slight Chance
    Snow

  • Tonight

    Tonight: A 40 percent chance of snow after midnight. Mostly cloudy, with a low around 33. Breezy, with an east wind 13 to 20 mph, with gusts as high as 28 mph. Little or no snow accumulation expected.

    Low: 33 °F

    Mostly Cloudy
    and Breezy
    then Chance
    Snow

  • Wednesday

    Wednesday: Rain and snow before 1pm, then rain between 1pm and 5pm, then rain, possibly mixed with snow after 5pm. High near 43. East wind 9 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

    High: 43 °F

    Rain/Snow

  • Wednesday Night

    Wednesday Night: Snow, possibly mixed with rain, becoming all snow after 11pm. Low around 30. East wind 6 to 11 mph becoming light after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 30 °F

    Rain/Snow
    then Chance
    Snow

  • Thursday

    Thursday: A chance of snow before 10am, then rain likely. Partly sunny, with a high near 50. Light east wind increasing to 10 to 15 mph in the morning. Winds could gust as high as 25 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

    High: 50 °F

    Chance
    Rain/Snow
    then Rain
    Likely

  • Thursday Night

    Thursday Night: Snow, possibly mixed with rain, becoming all snow after 4am. Low around 27. East wind 9 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New snow accumulation of less than one inch possible.

    Low: 27 °F

    Rain/Snow

  • Friday

    Friday: Snow. High near 36. East wind 10 to 16 mph becoming northwest in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 100%.

    High: 36 °F

    Snow

  • Friday Night

    Friday Night: Snow, mainly before midnight. Mostly cloudy, with a low around 25. West wind 13 to 17 mph, with gusts as high as 26 mph.

    Low: 25 °F

    Snow

  • Saturday

    Saturday: A chance of snow before noon, then a slight chance of rain and snow. Mostly cloudy, then gradually becoming sunny, with a high near 46.

    High: 46 °F

    Chance Snow
    then Slight
    Chance
    Rain/Snow

Detailed Forecast

This Afternoon
A 20 percent chance of snow after 3pm. Partly sunny, with a high near 43. East wind 14 to 18 mph, with gusts as high as 29 mph.
Tonight
A 40 percent chance of snow after midnight. Mostly cloudy, with a low around 33. Breezy, with an east wind 13 to 20 mph, with gusts as high as 28 mph. Little or no snow accumulation expected.
Wednesday
Rain and snow before 1pm, then rain between 1pm and 5pm, then rain, possibly mixed with snow after 5pm. High near 43. East wind 9 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Wednesday Night
Snow, possibly mixed with rain, becoming all snow after 11pm. Low around 30. East wind 6 to 11 mph becoming light after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Thursday
A chance of snow before 10am, then rain likely. Partly sunny, with a high near 50. Light east wind increasing to 10 to 15 mph in the morning. Winds could gust as high as 25 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Thursday Night
Snow, possibly mixed with rain, becoming all snow after 4am. Low around 27. East wind 9 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New snow accumulation of less than one inch possible.
Friday
Snow. High near 36. East wind 10 to 16 mph becoming northwest in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 100%.
Friday Night
Snow, mainly before midnight. Mostly cloudy, with a low around 25. West wind 13 to 17 mph, with gusts as high as 26 mph.
Saturday
A chance of snow before noon, then a slight chance of rain and snow. Mostly cloudy, then gradually becoming sunny, with a high near 46.
Saturday Night
Mostly clear, with a low around 31.
Sunday
Sunny, with a high near 60.
Sunday Night
Partly cloudy, with a low around 37.
Monday
A slight chance of rain. Partly sunny, with a high near 57.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Spearfish SD
 44.5°N 103.85°W (Elev. 3911 ft)
Last Update:
12:49 pm MDT Mar 31, 2026
Forecast Valid:
2pm MDT Mar 31, 2026-6pm MDT Apr 6, 2026
 
Forecast Discussion
 
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