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

Spearfish / Clyde Ice (KSPF)

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

Fair

59°F

15°C

Humidity 77%
Wind Speed Calm
Barometer 30.20 in
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 17 Aug 4:55 am MDT
Extended Forecast for

10 Miles SE Sundance WY

  • Overnight

    Overnight: A 20 percent chance of showers. Partly cloudy, with a low around 50. South wind around 5 mph.

    Low: 50 °F

    Slight Chance
    Showers

  • Monday

    Monday: A slight chance of showers before 9am, then a slight chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 78. Calm wind becoming west around 5 mph. Winds could gust as high as 17 mph. Chance of precipitation is 20%.

    High: 78 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: A 50 percent chance of showers and thunderstorms, mainly before midnight. Mostly cloudy, with a low around 54. Light and variable wind.

    Low: 54 °F

    Chance
    T-storms then
    Slight Chance
    T-storms

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms, mainly after noon. Partly sunny, with a high near 74. Calm wind becoming northwest around 5 mph. Winds could gust as high as 15 mph.

    High: 74 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Showers and thunderstorms likely, mainly after midnight. Mostly cloudy, with a low around 52. Light and variable wind. Chance of precipitation is 60%.

    Low: 52 °F

    T-storms
    Likely

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 74. Calm wind becoming northwest around 5 mph. Winds could gust as high as 16 mph.

    High: 74 °F

    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 52.

    Low: 52 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

Detailed Forecast

Overnight
A 20 percent chance of showers. Partly cloudy, with a low around 50. South wind around 5 mph.
Monday
A slight chance of showers before 9am, then a slight chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 78. Calm wind becoming west around 5 mph. Winds could gust as high as 17 mph. Chance of precipitation is 20%.
Monday Night
A 50 percent chance of showers and thunderstorms, mainly before midnight. Mostly cloudy, with a low around 54. Light and variable wind.
Tuesday
A 30 percent chance of showers and thunderstorms, mainly after noon. Partly sunny, with a high near 74. Calm wind becoming northwest around 5 mph. Winds could gust as high as 15 mph.
Tuesday Night
Showers and thunderstorms likely, mainly after midnight. Mostly cloudy, with a low around 52. Light and variable wind. Chance of precipitation is 60%.
Wednesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 74. Calm wind becoming northwest around 5 mph. Winds could gust as high as 16 mph.
Wednesday Night
Mostly clear, with a low around 52.
Thursday
Sunny, with a high near 80.
Thursday Night
Mostly clear, with a low around 56.
Friday
Mostly sunny, with a high near 82.
Friday Night
Partly cloudy, with a low around 58.
Saturday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 83.
Saturday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 61.
Sunday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 83.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
10 Miles SE Sundance WY
 44.29°N 104.25°W (Elev. 5640 ft)
Last Update:
4:56 am MDT Aug 17, 2026
Forecast Valid:
5am MDT Aug 17, 2026-6pm MDT Aug 23, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation