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

Strong Storm System Brings Heavy Mountain Snow to the Sierra Nevada and Critical Fire Weather Conditions to the Plains

A Pacific storm system will continue to bring low elevation rain and mountain snow to much of the West through Wednesday, with heavy mountain snow expected in the higher elevations of the Sierra Nevada. This system will also bring strong winds to the Intermountain West, Rockies, and Plains, which will create Critical fire weather conditions for the High Plains. Read More >

Hazardous Weather Conditions

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Fair

68°F

20°C

Humidity 35%
Wind Speed E 8 mph
Barometer 29.85 in
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 21 Apr 6:55 pm MDT
Extended Forecast for

3 Miles WSW Lead SD

Red Flag Warning April 22, 10:00am until April 22, 08:00pm
Click here for hazard details and duration
Red Flag Warning

  • Tonight

    Tonight: Increasing clouds, with a low around 54. Southeast wind 5 to 7 mph becoming south after midnight. Winds could gust as high as 21 mph.

    Low: 54 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: A 20 percent chance of showers after noon. Cloudy through mid morning, then gradual clearing, with a high near 75. Southwest wind 8 to 10 mph, with gusts as high as 29 mph.

    High: 75 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of rain showers before 2am, then a slight chance of rain and snow showers. Partly cloudy, with a low around 38. West wind 10 to 14 mph, with gusts as high as 32 mph. Chance of precipitation is 30%.

    Low: 38 °F

    Chance
    Showers then
    Slight Chance
    Rain/Snow

  • Thursday

    Thursday: Rain and snow showers, becoming all snow after 4pm. High near 49. West wind 11 to 15 mph, with gusts as high as 38 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

    High: 49 °F

    Chance
    Rain/Snow
    then
    Rain/Snow

  • Thursday Night

    Thursday Night: A 50 percent chance of snow showers. Mostly cloudy, with a low around 24. Northwest wind 10 to 14 mph, with gusts as high as 37 mph. New snow accumulation of less than a half inch possible.

    Low: 24 °F

    Chance Snow
    Showers

  • Friday

    Friday: Snow showers likely. Mostly cloudy, with a high near 38. Northwest wind around 10 mph, with gusts as high as 28 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    High: 38 °F

    Snow Showers
    Likely

  • Friday Night

    Friday Night: A 40 percent chance of snow showers. Mostly cloudy, with a low around 20. Northwest wind 5 to 8 mph becoming calm in the evening. Winds could gust as high as 22 mph.

    Low: 20 °F

    Chance Snow
    Showers

  • Saturday

    Saturday: A chance of snow showers. Partly sunny, with a high near 42. Calm wind becoming northeast around 6 mph in the afternoon. Winds could gust as high as 17 mph.

    High: 42 °F

    Chance Snow
    Showers

  • Saturday Night

    Saturday Night: Snow showers likely, mainly after midnight. Mostly cloudy, with a low around 26.

    Low: 26 °F

    Snow Showers
    Likely

Detailed Forecast

Tonight
Increasing clouds, with a low around 54. Southeast wind 5 to 7 mph becoming south after midnight. Winds could gust as high as 21 mph.
Wednesday
A 20 percent chance of showers after noon. Cloudy through mid morning, then gradual clearing, with a high near 75. Southwest wind 8 to 10 mph, with gusts as high as 29 mph.
Wednesday Night
A chance of rain showers before 2am, then a slight chance of rain and snow showers. Partly cloudy, with a low around 38. West wind 10 to 14 mph, with gusts as high as 32 mph. Chance of precipitation is 30%.
Thursday
Rain and snow showers, becoming all snow after 4pm. High near 49. West wind 11 to 15 mph, with gusts as high as 38 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Thursday Night
A 50 percent chance of snow showers. Mostly cloudy, with a low around 24. Northwest wind 10 to 14 mph, with gusts as high as 37 mph. New snow accumulation of less than a half inch possible.
Friday
Snow showers likely. Mostly cloudy, with a high near 38. Northwest wind around 10 mph, with gusts as high as 28 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Friday Night
A 40 percent chance of snow showers. Mostly cloudy, with a low around 20. Northwest wind 5 to 8 mph becoming calm in the evening. Winds could gust as high as 22 mph.
Saturday
A chance of snow showers. Partly sunny, with a high near 42. Calm wind becoming northeast around 6 mph in the afternoon. Winds could gust as high as 17 mph.
Saturday Night
Snow showers likely, mainly after midnight. Mostly cloudy, with a low around 26.
Sunday
Snow showers likely. Mostly cloudy, with a high near 38.
Sunday Night
A chance of snow showers. Mostly cloudy, with a low around 25.
Monday
A chance of snow showers. Mostly cloudy, with a high near 41.
Monday Night
A chance of snow showers. Mostly cloudy, with a low around 26.
Tuesday
A chance of rain and snow showers. Mostly sunny, with a high near 50.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WSW Lead SD
 44.33°N 103.8°W (Elev. 5627 ft)
Last Update:
5:22 pm MDT Apr 21, 2026
Forecast Valid:
7pm MDT Apr 21, 2026-6pm MDT Apr 28, 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