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

Heat Wave Continues in the West; Critical Fire Weather Conditions in the High Plains

An anomalously early heat wave will continue to intensify and expand across the West and Southwest as the week progresses. Numerous daily and potentially monthly record highs are expected to be broken. Critical fire weather conditions will continue over the next couple of days across portions of the High Plains as gusty winds and dry conditions persist. Read More >

Hazardous Weather Conditions

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Fair

50°F

10°C

Humidity 50%
Wind Speed W 7 mph
Barometer 29.92 in
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill47°F (8°C)
Last update 18 Mar 12:15 am MDT
Extended Forecast for

Spearfish SD

  • Overnight

    Overnight: Mostly clear, with a low around 42. West wind 13 to 15 mph, with gusts as high as 24 mph.

    Low: 42 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 70. Breezy, with a west wind 13 to 21 mph, with gusts as high as 37 mph.

    High: 70 °F

    Mostly Sunny
    then Sunny
    and Breezy

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 44. West wind 9 to 18 mph, with gusts as high as 29 mph.

    Low: 44 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 72. West wind 9 to 15 mph, with gusts as high as 25 mph.

    High: 72 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 47. West wind 8 to 10 mph, with gusts as high as 17 mph.

    Low: 47 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 75. West wind 10 to 14 mph, with gusts as high as 24 mph.

    High: 75 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 52. Southwest wind around 9 mph, with gusts as high as 17 mph.

    Low: 52 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 77. Southwest wind 8 to 14 mph becoming northwest in the afternoon. Winds could gust as high as 23 mph.

    High: 77 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A chance of rain before midnight, then a slight chance of rain and snow. Mostly cloudy, with a low around 34.

    Low: 34 °F

    Chance Rain
    then Slight
    Chance
    Rain/Snow

Detailed Forecast

Overnight
Mostly clear, with a low around 42. West wind 13 to 15 mph, with gusts as high as 24 mph.
Wednesday
Sunny, with a high near 70. Breezy, with a west wind 13 to 21 mph, with gusts as high as 37 mph.
Wednesday Night
Mostly clear, with a low around 44. West wind 9 to 18 mph, with gusts as high as 29 mph.
Thursday
Mostly sunny, with a high near 72. West wind 9 to 15 mph, with gusts as high as 25 mph.
Thursday Night
Partly cloudy, with a low around 47. West wind 8 to 10 mph, with gusts as high as 17 mph.
Friday
Sunny, with a high near 75. West wind 10 to 14 mph, with gusts as high as 24 mph.
Friday Night
Mostly clear, with a low around 52. Southwest wind around 9 mph, with gusts as high as 17 mph.
Saturday
Mostly sunny, with a high near 77. Southwest wind 8 to 14 mph becoming northwest in the afternoon. Winds could gust as high as 23 mph.
Saturday Night
A chance of rain before midnight, then a slight chance of rain and snow. Mostly cloudy, with a low around 34.
Sunday
Partly sunny, with a high near 50.
Sunday Night
A slight chance of rain and snow. Mostly cloudy, with a low around 32.
Monday
A slight chance of rain and snow. Mostly sunny, with a high near 58.
Monday Night
A slight chance of rain. Mostly cloudy, with a low around 35.
Tuesday
A slight chance of rain. Partly sunny, with a high near 61.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Spearfish SD
 44.5°N 103.85°W (Elev. 3911 ft)
Last Update:
9:22 pm MDT Mar 17, 2026
Forecast Valid:
12am MDT Mar 18, 2026-6pm MDT Mar 24, 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