On July 7, 2015, NWS implemented changes to the icons depicted on all of its point-forecast pages. Changes include new icon images with increased clarity, 6-hour increments for rapidly changing weather and new color blocks to highlight forecast hazards.

A page depicting all of the new icon images can be accessed here: www.weather.gov/forecast-icons

Changes to the icons were based on analysis of 6,700 public comments collected in 2014. Also, many of these changes are based on the results of a research project led by the National Center for Atmospheric Research.

Users are encouraged to continue to provide comments regarding these changes via email at icons@noaa.gov. NWS will continue to analyze incoming feedback and refine the icons as necessary. Any substantial change to the icons will be facilitated through the NWS public comment/review process.

Severe Storms Possible into this Evening

The NWS Storm Prediction Center has an enhanced risk of severe weather in portions of the Great Lakes and Midwest today. The area of greatest concern is in Michigan, southeast Wisconsin, northern Illinois, and northern Indiana. The primary risks for this area will be damaging winds and large hail, but an isolated tornado cannot be ruled out.
Read More...

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Fair

26°C

79°F

Humidity 37%
Wind Speed E 9 km/h
Barometer 30.06 in
Dewpoint 10°C (50°F)
Visibility 16 km
Heat Index26°C (79°F)
Last update 2 Aug 1:55 pm MDT
Extended Forecast for

Lead SD

  • This
    Afternoon

    This Afternoon: Sunny, with a high near 29. East wind 11 to 14 km/h.

    Sunny

    High: 29 °C

  • Tonight

    Tonight: Mostly clear, with a low around 11. East wind 5 to 11 km/h becoming south after midnight.

    Mostly Clear

    Low: 11 °C

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 27. Southeast wind 5 to 10 km/h.

    Sunny then
    Slight Chance
    T-storms

    High: 27 °C

  • Monday
    Night

    Monday Night: A 30 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 12. Southeast wind 5 to 10 km/h.

    Chance
    T-storms

    Low: 12 °C

  • Tuesday

    Tuesday: Showers and thunderstorms likely, mainly after noon.  Mostly cloudy, with a high near 23. Southeast wind 8 to 10 km/h.  Chance of precipitation is 60%.

    T-storms
    Likely

    High: 23 °C

  • Tuesday
    Night

    Tuesday Night: Showers and thunderstorms likely.  Mostly cloudy, with a low around 11. Southeast wind 5 to 8 km/h becoming west after midnight.  Chance of precipitation is 60%.

    T-storms
    Likely

    Low: 11 °C

  • Wednesday

    Wednesday: A 40 percent chance of showers and thunderstorms.  Partly sunny, with a high near 23.

    Chance
    T-storms

    High: 23 °C

  • Wednesday
    Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 9.

    Chance
    T-storms

    Low: 9 °C

  • Thursday

    Thursday: A 50 percent chance of showers and thunderstorms.  Partly sunny, with a high near 22.

    Chance
    T-storms

    High: 22 °C

Detailed Forecast

This Afternoon
Sunny, with a high near 29. East wind 11 to 14 km/h.
Tonight
Mostly clear, with a low around 11. East wind 5 to 11 km/h becoming south after midnight.
Monday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 27. Southeast wind 5 to 10 km/h.
Monday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 12. Southeast wind 5 to 10 km/h.
Tuesday
Showers and thunderstorms likely, mainly after noon. Mostly cloudy, with a high near 23. Southeast wind 8 to 10 km/h. Chance of precipitation is 60%.
Tuesday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 11. Southeast wind 5 to 8 km/h becoming west after midnight. Chance of precipitation is 60%.
Wednesday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 23.
Wednesday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 9.
Thursday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 22.
Thursday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 9.
Friday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 24.
Friday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 11.
Saturday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 26.
  Click Map For Forecast
Point Forecast:
Lead SD
 44.35°N 103.77°W (Elev. 1622 m)
12:42 pm MDT Aug 2, 2015
2pm MDT Aug 2, 2015-6pm MDT Aug 8, 2015
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Graph

National Digital Forecast Database