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

63°F

17°C

Humidity 83%
Wind Speed SW 9 mph
Barometer 30.28 in
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 15 Aug 10:55 pm MDT
Extended Forecast for

10 Miles S Alva WY

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 55. Light south wind.

    Low: 55 °F

    Slight Chance
    T-storms

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 77. Light and variable wind becoming southwest around 5 mph.

    High: 77 °F

    Sunny then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 58. Calm wind becoming south around 5 mph.

    Low: 58 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 81. Light and variable wind becoming north around 6 mph in the afternoon. Winds could gust as high as 16 mph.

    High: 81 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm before midnight, then a chance of showers. Mostly cloudy, with a low around 58. North wind around 5 mph becoming light and variable after midnight. Chance of precipitation is 60%.

    Low: 58 °F

    Showers
    Likely

  • Tuesday

    Tuesday: A chance of showers, with thunderstorms also possible after noon. Mostly cloudy, with a high near 77. Light and variable wind becoming west around 5 mph in the afternoon. Winds could gust as high as 15 mph. Chance of precipitation is 50%.

    High: 77 °F

    Chance
    Showers then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before midnight, then a slight chance of showers. Mostly cloudy, with a low around 56. Chance of precipitation is 30%.

    Low: 56 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Wednesday

    Wednesday: A slight chance of showers, then a chance of showers and thunderstorms after noon. Mostly sunny, with a high near 79.

    High: 79 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 57.

    Low: 57 °F

    Slight Chance
    T-storms then
    Partly Cloudy

Detailed Forecast

Tonight
A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 55. Light south wind.
Sunday
A 40 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 77. Light and variable wind becoming southwest around 5 mph.
Sunday Night
Mostly clear, with a low around 58. Calm wind becoming south around 5 mph.
Monday
Mostly sunny, with a high near 81. Light and variable wind becoming north around 6 mph in the afternoon. Winds could gust as high as 16 mph.
Monday Night
Showers likely and possibly a thunderstorm before midnight, then a chance of showers. Mostly cloudy, with a low around 58. North wind around 5 mph becoming light and variable after midnight. Chance of precipitation is 60%.
Tuesday
A chance of showers, with thunderstorms also possible after noon. Mostly cloudy, with a high near 77. Light and variable wind becoming west around 5 mph in the afternoon. Winds could gust as high as 15 mph. Chance of precipitation is 50%.
Tuesday Night
A chance of showers and thunderstorms before midnight, then a slight chance of showers. Mostly cloudy, with a low around 56. Chance of precipitation is 30%.
Wednesday
A slight chance of showers, then a chance of showers and thunderstorms after noon. Mostly sunny, with a high near 79.
Wednesday Night
A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 57.
Thursday
Mostly sunny, with a high near 81.
Thursday Night
Mostly clear, with a low around 59.
Friday
Sunny, with a high near 85.
Friday Night
Mostly clear, with a low around 63.
Saturday
Sunny, with a high near 88.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
10 Miles S Alva WY
 44.56°N 104.49°W (Elev. 5197 ft)
Last Update:
10:51 pm MDT Aug 15, 2026
Forecast Valid:
11pm MDT Aug 15, 2026-6pm MDT Aug 22, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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