Major Winter Storm Ongoing in the Upper Midwest; Severe Weather Tonight from the Mid-South to the Ohio Valley

A major winter storm will continue to bring blizzard conditions, heavy snowfall, icing, and strong winds through Monday across the Upper Midwest and Upper Great Lakes. A line of storms will be capable of producing widespread damaging winds, tornadoes, and some large hail from the Mid-South to the Ohio Valley and the Southeast through tonight, moving into the Mid-Atlantic Monday. Read More >

Hazardous Weather Conditions

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Fair

5°F

-15°C

Humidity 66%
Wind Speed W 7 mph
Barometer 30.20 in
Dewpoint -4°F (-20°C)
Visibility 10.00 mi
Wind Chill-7°F (-22°C)
Last update 16 Mar 2:55 am MDT
Extended Forecast for

6 Miles WSW Lead SD

  • Overnight

    Overnight: Mostly clear, with a low around 0. Calm wind.

    Low: 0 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 33. Wind chill values as low as 1. Calm wind becoming west around 5 mph. Winds could gust as high as 16 mph.

    High: 33 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Snow likely, possibly mixed with freezing rain before 2am, then freezing rain likely, possibly mixed with snow and sleet between 2am and 3am, then rain likely after 3am.  Cloudy, with a temperature rising to around 35 by 4am. Calm wind becoming west around 6 mph after midnight. Winds could gust as high as 24 mph.  Chance of precipitation is 60%. Little or no ice accumulation expected.  Little or no snow and sleet accumulation expected.

    Low: 28 °F

    Chance Snow
    then Wintry
    Mix Likely

  • Tuesday

    Tuesday: Partly sunny, with a high near 54. West wind 6 to 11 mph, with gusts as high as 37 mph.

    High: 54 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 37. Northwest wind 5 to 9 mph becoming light west  after midnight. Winds could gust as high as 31 mph.

    Low: 37 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 63. Light west wind increasing to 5 to 9 mph in the morning. Winds could gust as high as 29 mph.

    High: 63 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 39. Northwest wind around 6 mph becoming calm  in the evening. Winds could gust as high as 23 mph.

    Low: 39 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 66. Calm wind becoming west 5 to 8 mph. Winds could gust as high as 23 mph.

    High: 66 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 0. Calm wind.
Monday
Mostly sunny, with a high near 33. Wind chill values as low as 1. Calm wind becoming west around 5 mph. Winds could gust as high as 16 mph.
Monday Night
Snow likely, possibly mixed with freezing rain before 2am, then freezing rain likely, possibly mixed with snow and sleet between 2am and 3am, then rain likely after 3am. Cloudy, with a temperature rising to around 35 by 4am. Calm wind becoming west around 6 mph after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 60%. Little or no ice accumulation expected. Little or no snow and sleet accumulation expected.
Tuesday
Partly sunny, with a high near 54. West wind 6 to 11 mph, with gusts as high as 37 mph.
Tuesday Night
Partly cloudy, with a low around 37. Northwest wind 5 to 9 mph becoming light west after midnight. Winds could gust as high as 31 mph.
Wednesday
Mostly sunny, with a high near 63. Light west wind increasing to 5 to 9 mph in the morning. Winds could gust as high as 29 mph.
Wednesday Night
Partly cloudy, with a low around 39. Northwest wind around 6 mph becoming calm in the evening. Winds could gust as high as 23 mph.
Thursday
Mostly sunny, with a high near 66. Calm wind becoming west 5 to 8 mph. Winds could gust as high as 23 mph.
Thursday Night
Partly cloudy, with a low around 44.
Friday
Sunny, with a high near 70.
Friday Night
Partly cloudy, with a low around 42.
Saturday
A slight chance of rain. Partly sunny, with a high near 67.
Saturday Night
A slight chance of rain and snow. Partly cloudy, with a low around 30.
Sunday
A slight chance of snow. Mostly sunny, with a high near 49.
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles WSW Lead SD
 44.33°N 103.89°W (Elev. 5197 ft)
1:21 am MDT Mar 16, 2026
3am MDT Mar 16, 2026-6pm MDT Mar 22, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database