Critical Fire Weather in the High Plains and Midwest; Heavy Snow in the Western Mountains and Northern Plains

Gusty winds and low relative humidity will bring critical fire weather to the central/southern High Plains and portions of the Midwest. Two Pacific storms will continue to bring heavy mountain snow and gusty winds to the western U.S. through Thursday. A swath of wintry weather, including heavy snow and a wintry mix, is expected from the Northern Plains to New England. Read More >

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Fair

28°F

-2°C

Humidity 51%
Wind Speed W 15 mph
Barometer 29.59 in
Dewpoint 12°F (-11°C)
Visibility 10.00 mi
Wind Chill16°F (-9°C)
Last update 18 Feb 9:55 am MST
Extended Forecast for

Spearfish SD

Winter Weather Advisory February 18, 11:00pm until February 19, 05:00pm
Click here for hazard details and duration
Winter Weather Advisory
  • Today

    Today: Increasing clouds, with a high near 35. Wind chill values as low as 18. Northwest wind 9 to 14 mph becoming north in the afternoon. Winds could gust as high as 20 mph.

    High: 35 °F

    Increasing
    Clouds

  • Tonight

    Tonight: A 50 percent chance of snow after 8pm.  Mostly cloudy, with a low around 5. Wind chill values as low as -6. North wind around 11 mph, with gusts as high as 18 mph.  New snow accumulation of 2 to 4 inches possible.

    Low: 5 °F

    Chance Snow

  • Thursday

    Thursday: Snow likely, mainly before 11am.  Mostly cloudy, with a high near 16. Wind chill values as low as -6. Northwest wind 10 to 13 mph, with gusts as high as 21 mph.  Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.

    High: 16 °F

    Snow Likely

  • Thursday Night

    Thursday Night: A 30 percent chance of snow before 11pm.  Partly cloudy, with a low around 2. Northwest wind around 6 mph becoming calm  in the evening.

    Low: 2 °F

    Chance Snow
    then Partly
    Cloudy

  • Friday

    Friday: A 20 percent chance of snow after 11am.  Mostly sunny, with a high near 28. Calm wind becoming north 5 to 8 mph in the morning. Winds could gust as high as 15 mph.

    High: 28 °F

    Slight Chance
    Snow

  • Friday Night

    Friday Night: A 20 percent chance of snow before 11pm.  Mostly cloudy, with a low around 12. Southeast wind around 5 mph becoming calm.

    Low: 12 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Saturday

    Saturday: A 20 percent chance of snow after 11am.  Mostly sunny, with a high near 34. Northwest wind 6 to 10 mph, with gusts as high as 18 mph.

    High: 34 °F

    Slight Chance
    Snow

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 10. West wind around 5 mph becoming calm  in the evening.

    Low: 10 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 33.

    High: 33 °F

    Mostly Sunny

Detailed Forecast

Today
Increasing clouds, with a high near 35. Wind chill values as low as 18. Northwest wind 9 to 14 mph becoming north in the afternoon. Winds could gust as high as 20 mph.
Tonight
A 50 percent chance of snow after 8pm. Mostly cloudy, with a low around 5. Wind chill values as low as -6. North wind around 11 mph, with gusts as high as 18 mph. New snow accumulation of 2 to 4 inches possible.
Thursday
Snow likely, mainly before 11am. Mostly cloudy, with a high near 16. Wind chill values as low as -6. Northwest wind 10 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.
Thursday Night
A 30 percent chance of snow before 11pm. Partly cloudy, with a low around 2. Northwest wind around 6 mph becoming calm in the evening.
Friday
A 20 percent chance of snow after 11am. Mostly sunny, with a high near 28. Calm wind becoming north 5 to 8 mph in the morning. Winds could gust as high as 15 mph.
Friday Night
A 20 percent chance of snow before 11pm. Mostly cloudy, with a low around 12. Southeast wind around 5 mph becoming calm.
Saturday
A 20 percent chance of snow after 11am. Mostly sunny, with a high near 34. Northwest wind 6 to 10 mph, with gusts as high as 18 mph.
Saturday Night
Mostly clear, with a low around 10. West wind around 5 mph becoming calm in the evening.
Sunday
Mostly sunny, with a high near 33.
Sunday Night
Partly cloudy, with a low around 16.
Monday
Sunny, with a high near 48.
Monday Night
Partly cloudy, with a low around 31.
Tuesday
A slight chance of rain. Partly sunny, with a high near 49.
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ABOUT THIS FORECAST

 
Point Forecast:
Spearfish SD
 44.5°N 103.85°W (Elev. 3911 ft)
9:52 am MST Feb 18, 2026
10am MST Feb 18, 2026-6pm MST Feb 24, 2026
 
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Additional Resources

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