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

Strong Storm System Brings Heavy Mountain Snow to the Sierra Nevada and Critical Fire Weather Conditions to the Plains

A Pacific storm system will continue to bring low elevation rain and mountain snow to much of the West through Wednesday, with heavy mountain snow expected in the higher elevations of the Sierra Nevada. This system will also bring strong winds to the Intermountain West, Rockies, and Plains, which will create Critical fire weather conditions for the High Plains. Read More >

Hazardous Weather Conditions

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Fair

70°F

21°C

Humidity 18%
Wind Speed S 17 mph
Barometer 29.74 in
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Last update 22 Apr 12:55 am MDT
Extended Forecast for

Spearfish SD

Red Flag Warning April 22, 10:00am until April 22, 08:00pm
Click here for hazard details and duration
Red Flag Warning

  • Overnight

    Overnight: Mostly cloudy, with a low around 60. South wind around 8 mph, with gusts as high as 17 mph.

    Low: 60 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Cloudy through mid morning, then gradual clearing, with a high near 84. Breezy, with a southwest wind 8 to 13 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 31 mph.

    High: 84 °F

    Mostly Cloudy
    then Sunny
    and Breezy

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers. Partly cloudy, with a low around 45. Breezy, with a west wind 15 to 23 mph, with gusts as high as 32 mph.

    Low: 45 °F

    Slight Chance
    Showers and
    Breezy

  • Thursday

    Thursday: Showers likely. Partly sunny, with a high near 53. Breezy, with a west wind 16 to 26 mph, with gusts as high as 37 mph. Chance of precipitation is 60%.

    High: 53 °F

    Showers
    Likely and
    Breezy

  • Thursday Night

    Thursday Night: A chance of rain showers before 9pm, then a chance of rain and snow showers between 9pm and 11pm, then a chance of snow showers after 11pm. Mostly cloudy, with a low around 31. Blustery, with a northwest wind 16 to 21 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 29 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

    Low: 31 °F

    Chance
    Rain/Snow and
    Blustery then
    Chance Snow
    Showers

  • Friday

    Friday: Snow showers likely. Mostly cloudy, with a high near 46. Northwest wind around 11 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 46 °F

    Snow Showers
    Likely

  • Friday Night

    Friday Night: A 40 percent chance of snow showers. Mostly cloudy, with a low around 29. North wind 6 to 10 mph becoming southwest after midnight. Winds could gust as high as 20 mph.

    Low: 29 °F

    Chance Snow
    Showers

  • Saturday

    Saturday: A chance of snow showers before 1pm, then a chance of rain showers. Partly sunny, with a high near 50. Southwest wind 6 to 10 mph becoming northeast in the morning. Winds could gust as high as 20 mph.

    High: 50 °F

    Chance Snow
    Showers then
    Chance
    Rain/Snow

  • Saturday Night

    Saturday Night: A chance of rain showers before 9pm, then rain and snow showers likely between 9pm and 3am, then snow showers likely after 3am. Mostly cloudy, with a low around 31.

    Low: 31 °F

    Rain/Snow
    Likely

Detailed Forecast

Overnight
Mostly cloudy, with a low around 60. South wind around 8 mph, with gusts as high as 17 mph.
Wednesday
Cloudy through mid morning, then gradual clearing, with a high near 84. Breezy, with a southwest wind 8 to 13 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 31 mph.
Wednesday Night
A 20 percent chance of showers. Partly cloudy, with a low around 45. Breezy, with a west wind 15 to 23 mph, with gusts as high as 32 mph.
Thursday
Showers likely. Partly sunny, with a high near 53. Breezy, with a west wind 16 to 26 mph, with gusts as high as 37 mph. Chance of precipitation is 60%.
Thursday Night
A chance of rain showers before 9pm, then a chance of rain and snow showers between 9pm and 11pm, then a chance of snow showers after 11pm. Mostly cloudy, with a low around 31. Blustery, with a northwest wind 16 to 21 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 29 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
Friday
Snow showers likely. Mostly cloudy, with a high near 46. Northwest wind around 11 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Friday Night
A 40 percent chance of snow showers. Mostly cloudy, with a low around 29. North wind 6 to 10 mph becoming southwest after midnight. Winds could gust as high as 20 mph.
Saturday
A chance of snow showers before 1pm, then a chance of rain showers. Partly sunny, with a high near 50. Southwest wind 6 to 10 mph becoming northeast in the morning. Winds could gust as high as 20 mph.
Saturday Night
A chance of rain showers before 9pm, then rain and snow showers likely between 9pm and 3am, then snow showers likely after 3am. Mostly cloudy, with a low around 31.
Sunday
Snow showers before noon, then rain and snow showers. Mostly cloudy, with a high near 42.
Sunday Night
Rain and snow showers likely. Mostly cloudy, with a low around 29.
Monday
A chance of rain and snow showers. Mostly cloudy, with a high near 47.
Monday Night
A chance of rain and snow showers. Partly cloudy, with a low around 32.
Tuesday
A chance of rain and snow showers. Mostly sunny, with a high near 57.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Spearfish SD
 44.48°N 103.85°W (Elev. 3780 ft)
Last Update:
12:32 am MDT Apr 22, 2026
Forecast Valid:
1am MDT Apr 22, 2026-6pm MDT Apr 28, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation