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.

Overcast

72°F

22°C

Humidity 61%
Wind Speed NW 10 mph
Barometer 30.28 in
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 15 Aug 11:35 am MDT
Extended Forecast for

Sundance WY

  • Today

    Today: A 40 percent chance of showers and thunderstorms, mainly after 2pm. Partly sunny, with a high near 70. Northeast wind around 6 mph.

    High: 70 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 53. Northeast wind around 5 mph becoming calm.

    Low: 53 °F

    Chance
    T-storms then
    Partly Cloudy

  • Sunday

    Sunday: A chance of showers, then showers likely and possibly a thunderstorm after noon. Mostly sunny, with a high near 76. South wind 5 to 7 mph becoming calm in the afternoon. Winds could gust as high as 15 mph. Chance of precipitation is 60%.

    High: 76 °F

    Chance
    Showers then
    Showers
    Likely

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms before midnight. Mostly clear, with a low around 54. Calm wind becoming south around 5 mph.

    Low: 54 °F

    Chance
    T-storms then
    Mostly Clear

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 81. Calm wind becoming west 5 to 7 mph in the afternoon. Winds could gust as high as 16 mph.

    High: 81 °F

    Sunny then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 56. Northeast wind around 6 mph becoming south after midnight.

    Low: 56 °F

    Chance
    T-storms then
    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers, with thunderstorms also possible after noon. Partly sunny, with a high near 75. Chance of precipitation is 50%.

    High: 75 °F

    Chance
    Showers then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 52.

    Low: 52 °F

    Chance
    T-storms then
    Mostly Cloudy

  • Wednesday

    Wednesday: A slight chance of showers, then a chance of showers and thunderstorms after noon. Mostly sunny, with a high near 75.

    High: 75 °F

    Slight Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

Today
A 40 percent chance of showers and thunderstorms, mainly after 2pm. Partly sunny, with a high near 70. Northeast wind around 6 mph.
Tonight
A 30 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 53. Northeast wind around 5 mph becoming calm.
Sunday
A chance of showers, then showers likely and possibly a thunderstorm after noon. Mostly sunny, with a high near 76. South wind 5 to 7 mph becoming calm in the afternoon. Winds could gust as high as 15 mph. Chance of precipitation is 60%.
Sunday Night
A 30 percent chance of showers and thunderstorms before midnight. Mostly clear, with a low around 54. Calm wind becoming south around 5 mph.
Monday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 81. Calm wind becoming west 5 to 7 mph in the afternoon. Winds could gust as high as 16 mph.
Monday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 56. Northeast wind around 6 mph becoming south after midnight.
Tuesday
A chance of showers, with thunderstorms also possible after noon. Partly sunny, with a high near 75. Chance of precipitation is 50%.
Tuesday Night
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 52.
Wednesday
A slight chance of showers, then a chance of showers and thunderstorms after noon. Mostly sunny, with a high near 75.
Wednesday Night
A slight chance of showers and thunderstorms before midnight. Mostly clear, with a low around 53.
Thursday
Sunny, with a high near 79.
Thursday Night
Mostly clear, with a low around 56.
Friday
Sunny, with a high near 82.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Sundance WY
 44.39°N 104.38°W (Elev. 5600 ft)
Last Update:
9:41 am MDT Aug 15, 2026
Forecast Valid:
11am MDT Aug 15, 2026-6pm MDT Aug 21, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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