Heavy Snow from the Midwest into the Great Lakes; Locally Heavy Rain in the Western Gulf Coast

A significant winter storm will produce a broad area of moderate to heavy snow from the Midwest through the western Great Lakes. Significant snow accumulations of 6-12 inches, and locally more than 1 foot, and gusty wind may cause hazardous travel conditions. Thunderstorms, some severe, and showers may produce locally heavy rain and isolated flash flooding along the western Gulf Coast. Read More >

Hazardous Weather Conditions

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Fair

-4°F

-20°C

Humidity 84%
Wind Speed Calm
Barometer 30.29 in
Dewpoint -8°F (-22°C)
Visibility 10.00 mi
Last update 30 Nov 1:15 am MST
Extended Forecast for

4 Miles WSW Lead SD

  • Overnight

    Overnight: Mostly clear, with a low around -6. Light west wind.

    Low: -6 °F

    Mostly Clear

  • Sunday

    Sunday: Increasing clouds, with a high near 21. Wind chill values as low as -12. South wind 3 to 6 mph.

    High: 21 °F

    Increasing
    Clouds

  • Sunday Night

    Sunday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 3. Wind chill values as low as -13. Southwest wind 5 to 10 mph, with gusts as high as 18 mph.

    Low: 3 °F

    Decreasing
    Clouds

  • Monday

    Monday: Sunny, with a high near 22. Wind chill values as low as -11. West wind around 10 mph, with gusts as high as 24 mph.

    High: 22 °F

    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a temperature rising to around 20 by 2am. Southwest wind around 10 mph, with gusts as high as 20 mph.

    Low: 14 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 50 percent chance of snow, mainly after 11am.  Mostly cloudy, with a high near 29. West wind 7 to 9 mph, with gusts as high as 20 mph.  New snow accumulation of less than one inch possible.

    High: 29 °F

    Chance Snow

  • Tuesday Night

    Tuesday Night: Snow.  Low around 9. Northwest wind 13 to 16 mph, with gusts as high as 29 mph.  Chance of precipitation is 80%.

    Low: 9 °F

    Snow

  • Wednesday

    Wednesday: Snow likely, mainly before 11am.  Cloudy, then gradually becoming mostly sunny, with a high near 15. Northwest wind 5 to 11 mph, with gusts as high as 23 mph.

    High: 15 °F

    Snow Likely

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 4.

    Low: 4 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around -6. Light west wind.
Sunday
Increasing clouds, with a high near 21. Wind chill values as low as -12. South wind 3 to 6 mph.
Sunday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 3. Wind chill values as low as -13. Southwest wind 5 to 10 mph, with gusts as high as 18 mph.
Monday
Sunny, with a high near 22. Wind chill values as low as -11. West wind around 10 mph, with gusts as high as 24 mph.
Monday Night
Mostly cloudy, with a temperature rising to around 20 by 2am. Southwest wind around 10 mph, with gusts as high as 20 mph.
Tuesday
A 50 percent chance of snow, mainly after 11am. Mostly cloudy, with a high near 29. West wind 7 to 9 mph, with gusts as high as 20 mph. New snow accumulation of less than one inch possible.
Tuesday Night
Snow. Low around 9. Northwest wind 13 to 16 mph, with gusts as high as 29 mph. Chance of precipitation is 80%.
Wednesday
Snow likely, mainly before 11am. Cloudy, then gradually becoming mostly sunny, with a high near 15. Northwest wind 5 to 11 mph, with gusts as high as 23 mph.
Wednesday Night
Mostly clear, with a low around 4.
Thursday
A slight chance of snow after 11am. Mostly sunny, with a high near 27.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 19.
Friday
A chance of snow. Partly sunny, with a high near 28.
Friday Night
A chance of snow. Mostly cloudy, with a low around 19.
Saturday
Snow likely. Mostly cloudy, with a high near 29.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WSW Lead SD
 44.33°N 103.83°W (Elev. 6398 ft)
1:32 am MST Nov 30, 2025
1am MST Nov 30, 2025-6pm MST Dec 6, 2025
 
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