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Critical Fire Weather in the Southern High Plains; Heavy Snow in the Great Lakes and Northeast U.S.

Gusty winds and low relative humidity will bring elevated to critical fire weather conditions to the southern High Plains through the weekend. A winter storm will track across the Great Lakes and Northeast U.S. into Saturday with areas of wintry mix and heavy snow from northern New York through southern Maine. Read More >

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Fair

12°F

-11°C

Humidity 79%
Wind Speed Calm
Barometer 29.97 in
Dewpoint 7°F (-14°C)
Visibility 10.00 mi
Last update 20 Feb 11:55 pm MST
Extended Forecast for

Spearfish SD

  • Overnight

    Overnight: A 20 percent chance of snow after 3am. Mostly cloudy, with a low around 14. Wind chill values as low as 6. Calm wind becoming west around 5 mph.

    Low: 14 °F

    Slight Chance
    Snow

  • Saturday

    Saturday: A 20 percent chance of snow before 2pm. Mostly cloudy, then gradually becoming sunny, with a high near 30. Wind chill values as low as 9. Northwest wind 6 to 11 mph, with gusts as high as 22 mph.

    High: 30 °F

    Slight Chance
    Snow

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 11. West wind around 5 mph becoming calm in the evening.

    Low: 11 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 35. Wind chill values as low as 13. Calm wind becoming east 5 to 8 mph in the morning. Winds could gust as high as 17 mph.

    High: 35 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 19. Southeast wind 5 to 7 mph becoming light and variable after midnight.

    Low: 19 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 57. West wind 3 to 8 mph. Winds could gust as high as 16 mph.

    High: 57 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 38. Southwest wind 7 to 11 mph, with gusts as high as 21 mph.

    Low: 38 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 58. West wind 11 to 14 mph, with gusts as high as 26 mph.

    High: 58 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: A chance of rain before 11pm, then rain and snow likely. Mostly cloudy, with a low around 35.

    Low: 35 °F

    Rain/Snow
    Likely

Detailed Forecast

Overnight
A 20 percent chance of snow after 3am. Mostly cloudy, with a low around 14. Wind chill values as low as 6. Calm wind becoming west around 5 mph.
Saturday
A 20 percent chance of snow before 2pm. Mostly cloudy, then gradually becoming sunny, with a high near 30. Wind chill values as low as 9. Northwest wind 6 to 11 mph, with gusts as high as 22 mph.
Saturday Night
Mostly clear, with a low around 11. West wind around 5 mph becoming calm in the evening.
Sunday
Mostly sunny, with a high near 35. Wind chill values as low as 13. Calm wind becoming east 5 to 8 mph in the morning. Winds could gust as high as 17 mph.
Sunday Night
Mostly clear, with a low around 19. Southeast wind 5 to 7 mph becoming light and variable after midnight.
Monday
Mostly sunny, with a high near 57. West wind 3 to 8 mph. Winds could gust as high as 16 mph.
Monday Night
Mostly cloudy, with a low around 38. Southwest wind 7 to 11 mph, with gusts as high as 21 mph.
Tuesday
Mostly cloudy, with a high near 58. West wind 11 to 14 mph, with gusts as high as 26 mph.
Tuesday Night
A chance of rain before 11pm, then rain and snow likely. Mostly cloudy, with a low around 35.
Wednesday
Rain and snow likely, becoming all snow after 11am. Partly sunny, with a high near 46. Breezy.
Wednesday Night
A slight chance of snow. Partly cloudy, with a low around 30.
Thursday
Sunny, with a high near 53. Breezy.
Thursday Night
Mostly clear, with a low around 36.
Friday
A chance of rain and snow. Partly sunny, with a high near 54. Breezy.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Spearfish SD
 44.48°N 103.85°W (Elev. 3780 ft)
Last Update:
11:31 pm MST Feb 20, 2026
Forecast Valid:
12am MST Feb 21, 2026-6pm MST Feb 27, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation