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

Tracking Areas of Fire Weather, Winter Weather, and Severe Weather Thursday

Continuation of gusty winds and low relative humidity will bring additional periods of critical fire weather to the southern Plains Thursday and Friday. Another Pacific storm will continue gusty winds and heavy snow over the western mountains into Thursday. Severe thunderstorms are possible across parts of the middle Mississippi into lower Ohio Valleys Thursday afternoon into early evening. Read More >

Hazardous Weather Conditions

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Overcast

9°F

-13°C

Humidity 78%
Wind Speed NW 10 mph
Barometer 29.73 in
Dewpoint 3°F (-16°C)
Visibility 10.00 mi
Wind Chill-5°F (-21°C)
Last update 18 Feb 10:55 pm MST
Extended Forecast for

Belle Fourche SD

  • Tonight

    Tonight: A 40 percent chance of snow, mainly after 2am. Mostly cloudy, with a low around 7. Wind chill values as low as -10. Northwest wind 10 to 14 mph, with gusts as high as 20 mph. Total nighttime snow accumulation of less than a half inch possible.

    Low: 7 °F

    Mostly Cloudy
    then Chance
    Snow

  • Thursday

    Thursday: Snow likely, mainly before 11am. Cloudy, with a high near 17. Wind chill values as low as -10. Northwest wind around 15 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New snow accumulation of around an inch possible.

    High: 17 °F

    Snow Likely
    then Chance
    Snow

  • Thursday Night

    Thursday Night: A 20 percent chance of snow before 8pm. Mostly cloudy, with a low around 3. Wind chill values as low as -7. Northwest wind 5 to 9 mph becoming light west after midnight. Winds could gust as high as 15 mph.

    Low: 3 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 29. Wind chill values as low as -1. Calm wind becoming northwest 5 to 8 mph in the morning. Winds could gust as high as 15 mph.

    High: 29 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 5. West wind around 5 mph becoming calm in the evening.

    Low: 5 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 36. Light west wind becoming northwest 6 to 11 mph in the morning. Winds could gust as high as 20 mph.

    High: 36 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 6. Northwest wind around 6 mph becoming calm in the evening.

    Low: 6 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 34. Light southeast wind becoming east 6 to 11 mph in the morning. Winds could gust as high as 17 mph.

    High: 34 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 12.

    Low: 12 °F

    Partly Cloudy

Detailed Forecast

Tonight
A 40 percent chance of snow, mainly after 2am. Mostly cloudy, with a low around 7. Wind chill values as low as -10. Northwest wind 10 to 14 mph, with gusts as high as 20 mph. Total nighttime snow accumulation of less than a half inch possible.
Thursday
Snow likely, mainly before 11am. Cloudy, with a high near 17. Wind chill values as low as -10. Northwest wind around 15 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New snow accumulation of around an inch possible.
Thursday Night
A 20 percent chance of snow before 8pm. Mostly cloudy, with a low around 3. Wind chill values as low as -7. Northwest wind 5 to 9 mph becoming light west after midnight. Winds could gust as high as 15 mph.
Friday
Mostly sunny, with a high near 29. Wind chill values as low as -1. Calm wind becoming northwest 5 to 8 mph in the morning. Winds could gust as high as 15 mph.
Friday Night
Partly cloudy, with a low around 5. West wind around 5 mph becoming calm in the evening.
Saturday
Mostly sunny, with a high near 36. Light west wind becoming northwest 6 to 11 mph in the morning. Winds could gust as high as 20 mph.
Saturday Night
Mostly clear, with a low around 6. Northwest wind around 6 mph becoming calm in the evening.
Sunday
Mostly sunny, with a high near 34. Light southeast wind becoming east 6 to 11 mph in the morning. Winds could gust as high as 17 mph.
Sunday Night
Partly cloudy, with a low around 12.
Monday
Sunny, with a high near 50.
Monday Night
Partly cloudy, with a low around 27.
Tuesday
Partly sunny, with a high near 54.
Tuesday Night
A slight chance of rain and snow. Partly cloudy, with a low around 24.
Wednesday
A slight chance of snow. Mostly sunny, with a high near 49.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Belle Fourche SD
 44.67°N 103.86°W (Elev. 3025 ft)
Last Update:
9:56 pm MST Feb 18, 2026
Forecast Valid:
10pm MST Feb 18, 2026-6pm MST Feb 25, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation