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 9 mph
Barometer 29.58 in
Dewpoint 12°F (-11°C)
Visibility 10.00 mi
Wind Chill19°F (-7°C)
Last update 18 Feb 9:35 am MST
Extended Forecast for

6 Miles WSW Lead 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: Mostly sunny, with a temperature rising to near 37 by noon, then falling to around 24 during the remainder of the day. Wind chill values as low as 18. Light and variable wind becoming west around 6 mph in the morning. Winds could gust as high as 17 mph.

    High: 37 °F

    Mostly Sunny

  • Tonight

    Tonight: Snow likely, mainly after 11pm.  Mostly cloudy, with a low around 3. Light and variable wind. Winds could gust as high as 16 mph.  Chance of precipitation is 60%. New snow accumulation of 2 to 4 inches possible.

    Low: 3 °F

    Snow Likely

  • Thursday

    Thursday: Snow likely.  Mostly cloudy, with a high near 15. Wind chill values as low as -3. Calm wind becoming northwest around 6 mph. Winds could gust as high as 18 mph.  Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.

    High: 15 °F

    Snow Likely

  • Thursday Night

    Thursday Night: A 40 percent chance of snow before 11pm.  Mostly cloudy, then gradually becoming mostly clear, with a low around -1. Calm wind.  New snow accumulation of less than a half inch possible.

    Low: -1 °F

    Chance Snow
    then Partly
    Cloudy

  • Friday

    Friday: A 30 percent chance of snow, mainly after 11am.  Mostly sunny, with a high near 26. Light and variable wind. Winds could gust as high as 16 mph.

    High: 26 °F

    Chance Snow

  • Friday Night

    Friday Night: A 20 percent chance of snow.  Mostly cloudy, with a low around 8. Calm wind.

    Low: 8 °F

    Slight Chance
    Snow

  • Saturday

    Saturday: A 20 percent chance of snow.  Mostly sunny, with a high near 28. Calm wind becoming northwest around 6 mph. Winds could gust as high as 20 mph.

    High: 28 °F

    Slight Chance
    Snow

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 6. Calm wind.

    Low: 6 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 32.

    High: 32 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly sunny, with a temperature rising to near 37 by noon, then falling to around 24 during the remainder of the day. Wind chill values as low as 18. Light and variable wind becoming west around 6 mph in the morning. Winds could gust as high as 17 mph.
Tonight
Snow likely, mainly after 11pm. Mostly cloudy, with a low around 3. Light and variable wind. Winds could gust as high as 16 mph. Chance of precipitation is 60%. New snow accumulation of 2 to 4 inches possible.
Thursday
Snow likely. Mostly cloudy, with a high near 15. Wind chill values as low as -3. Calm wind becoming northwest around 6 mph. Winds could gust as high as 18 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.
Thursday Night
A 40 percent chance of snow before 11pm. Mostly cloudy, then gradually becoming mostly clear, with a low around -1. Calm wind. New snow accumulation of less than a half inch possible.
Friday
A 30 percent chance of snow, mainly after 11am. Mostly sunny, with a high near 26. Light and variable wind. Winds could gust as high as 16 mph.
Friday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 8. Calm wind.
Saturday
A 20 percent chance of snow. Mostly sunny, with a high near 28. Calm wind becoming northwest around 6 mph. Winds could gust as high as 20 mph.
Saturday Night
Mostly clear, with a low around 6. Calm wind.
Sunday
Mostly sunny, with a high near 32.
Sunday Night
Partly cloudy, with a low around 14.
Monday
Sunny, with a high near 45.
Monday Night
Partly cloudy, with a low around 27.
Tuesday
A chance of snow. Partly sunny, with a high near 44.
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles WSW Lead SD
 44.33°N 103.89°W (Elev. 5197 ft)
7:47 am MST Feb 18, 2026
9am MST Feb 18, 2026-6pm MST Feb 24, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

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