Hazardous Spring Weather Shifts to the Eastern and Northwest U.S. Wednesday

Isolated to scattered severe thunderstorms are expected Wednesday from the ArkLaTex and Lower Mississippi Valley northeastward through the Ohio Valley and Mid-Atlantic. Thunderstorms may produce heavy to excessive rain that could pose a flooding threat from east Texas into Upstate New York. A moderate atmospheric river will bring heavy snow and high winds to the Northwest U.S. Read More >

Hazardous Weather Conditions

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Overcast

21°F

-6°C

Humidity 100%
Wind Speed W 5 mph
Barometer 30.10 in
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill14°F (-10°C)
Last update 11 Mar 1:35 am MDT
Extended Forecast for

3 Miles WSW Lead SD

  • Overnight

    Overnight: Mostly cloudy, with a low around 15. Wind chill values as low as 4. West wind 5 to 9 mph, with gusts as high as 21 mph.

    Low: 15 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 32. Wind chill values as low as 2. West wind 10 to 14 mph, with gusts as high as 29 mph.

    High: 32 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a steady temperature around 26. Wind chill values as low as 12. Southwest wind 10 to 18 mph, with gusts as high as 30 mph.

    Low: 26 °F

    Mostly Clear

  • Thursday

    Thursday: Rain and snow likely before 2pm, then rain likely between 2pm and 4pm, then snow likely after 4pm.  Mostly cloudy, with a high near 48. Wind chill values as low as 16 early. Breezy, with a west wind 20 to 26 mph, with gusts as high as 40 mph.  Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 48 °F

    Breezy.
    Partly Sunny
    then
    Rain/Snow
    Likely

  • Thursday Night

    Thursday Night: Snow.  Low around 21. Blustery, with a northwest wind 21 to 26 mph decreasing to 7 to 12 mph after midnight. Winds could gust as high as 40 mph.  Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

    Low: 21 °F

    Snow and
    Blustery

  • Friday

    Friday: Snow.  High near 36. West wind around 8 mph, with gusts as high as 20 mph.  Chance of precipitation is 80%. New snow accumulation of around an inch possible.

    High: 36 °F

    Snow

  • Friday Night

    Friday Night: Snow likely.  Mostly cloudy, with a low around 24. West wind 6 to 8 mph, with gusts as high as 17 mph.  Chance of precipitation is 70%.

    Low: 24 °F

    Snow Likely

  • Saturday

    Saturday: Snow, mainly after noon.  Mostly cloudy, with a high near 38. Southwest wind 8 to 10 mph becoming north in the afternoon. Winds could gust as high as 23 mph.

    High: 38 °F

    Snow

  • Saturday Night

    Saturday Night: Snow. The snow could be heavy at times.  Mostly cloudy, with a low around 9.

    Low: 9 °F

    Heavy Snow

Detailed Forecast

Overnight
Mostly cloudy, with a low around 15. Wind chill values as low as 4. West wind 5 to 9 mph, with gusts as high as 21 mph.
Wednesday
Sunny, with a high near 32. Wind chill values as low as 2. West wind 10 to 14 mph, with gusts as high as 29 mph.
Wednesday Night
Mostly clear, with a steady temperature around 26. Wind chill values as low as 12. Southwest wind 10 to 18 mph, with gusts as high as 30 mph.
Thursday
Rain and snow likely before 2pm, then rain likely between 2pm and 4pm, then snow likely after 4pm. Mostly cloudy, with a high near 48. Wind chill values as low as 16 early. Breezy, with a west wind 20 to 26 mph, with gusts as high as 40 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Thursday Night
Snow. Low around 21. Blustery, with a northwest wind 21 to 26 mph decreasing to 7 to 12 mph after midnight. Winds could gust as high as 40 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.
Friday
Snow. High near 36. West wind around 8 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.
Friday Night
Snow likely. Mostly cloudy, with a low around 24. West wind 6 to 8 mph, with gusts as high as 17 mph. Chance of precipitation is 70%.
Saturday
Snow, mainly after noon. Mostly cloudy, with a high near 38. Southwest wind 8 to 10 mph becoming north in the afternoon. Winds could gust as high as 23 mph.
Saturday Night
Snow. The snow could be heavy at times. Mostly cloudy, with a low around 9.
Sunday
Snow. Mostly cloudy, with a high near 19.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 11.
Monday
A chance of snow. Mostly cloudy, with a high near 31.
Monday Night
A chance of snow. Mostly cloudy, with a low around 28.
Tuesday
A chance of rain and snow. Mostly cloudy, with a high near 51.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WSW Lead SD
 44.35°N 103.83°W (Elev. 6112 ft)
12:32 am MDT Mar 11, 2026
1am MDT Mar 11, 2026-6pm MDT Mar 17, 2026
 
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Additional Resources

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