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

Storm Systems to Impact the Central and Eastern U.S. Through the Weekend

Two storm systems will track through the central and eastern U.S. today through this weekend with areas of gusty winds, rain and heavy snow. Severe thunderstorms and heavy to excessive rainfall is forecast today from the Lower Mississippi River Valley to the Tennessee Valley. Damaging winds, a few tornadoes, and areas of flooding are possible. Read More >

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Fair

46°F

8°C

Humidity 18%
Wind Speed W 13 mph
Barometer 30.26 in
Dewpoint 5°F (-15°C)
Visibility 10.00 mi
Wind Chill40°F (4°C)
Last update 11 Jan 8:35 am MST
Extended Forecast for

Lead SD

  • Today

    Today: Mostly sunny, with a high near 51. West wind 6 to 10 mph, with gusts as high as 28 mph.

    High: 51 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 37. West wind 6 to 8 mph, with gusts as high as 26 mph.

    Low: 37 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 50. West wind 8 to 11 mph, with gusts as high as 30 mph.

    High: 50 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 40. West wind 14 to 18 mph, with gusts as high as 44 mph.

    Low: 40 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A slight chance of rain and snow before 10am, then a chance of rain. Mostly cloudy, with a steady temperature around 43. Northwest wind 14 to 17 mph, with gusts as high as 43 mph. Chance of precipitation is 30%.

    High: 43 °F

    Chance
    Rain/Snow
    then Chance
    Rain

  • Tuesday Night

    Tuesday Night: A slight chance of rain and snow before 9pm, then a slight chance of snow between 9pm and 11pm. Mostly cloudy, with a low around 36. Northwest wind 11 to 14 mph, with gusts as high as 37 mph. Chance of precipitation is 20%.

    Low: 36 °F

    Slight Chance
    Rain/Snow
    then Mostly
    Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 47. West wind 6 to 9 mph, with gusts as high as 26 mph.

    High: 47 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 34. West wind 7 to 17 mph, with gusts as high as 43 mph.

    Low: 34 °F

    Mostly Clear

  • Thursday

    Thursday: A slight chance of snow. Mostly sunny, with a high near 42.

    High: 42 °F

    Slight Chance
    Snow

Detailed Forecast

Today
Mostly sunny, with a high near 51. West wind 6 to 10 mph, with gusts as high as 28 mph.
Tonight
Partly cloudy, with a low around 37. West wind 6 to 8 mph, with gusts as high as 26 mph.
Monday
Mostly sunny, with a high near 50. West wind 8 to 11 mph, with gusts as high as 30 mph.
Monday Night
Mostly cloudy, with a low around 40. West wind 14 to 18 mph, with gusts as high as 44 mph.
Tuesday
A slight chance of rain and snow before 10am, then a chance of rain. Mostly cloudy, with a steady temperature around 43. Northwest wind 14 to 17 mph, with gusts as high as 43 mph. Chance of precipitation is 30%.
Tuesday Night
A slight chance of rain and snow before 9pm, then a slight chance of snow between 9pm and 11pm. Mostly cloudy, with a low around 36. Northwest wind 11 to 14 mph, with gusts as high as 37 mph. Chance of precipitation is 20%.
Wednesday
Mostly sunny, with a high near 47. West wind 6 to 9 mph, with gusts as high as 26 mph.
Wednesday Night
Mostly clear, with a low around 34. West wind 7 to 17 mph, with gusts as high as 43 mph.
Thursday
A slight chance of snow. Mostly sunny, with a high near 42.
Thursday Night
A chance of snow, mainly after 11pm. Partly cloudy, with a low around 18. Blustery.
Friday
A chance of snow. Partly sunny, with a high near 23. Blustery.
Friday Night
A slight chance of snow. Mostly cloudy, with a low around 13.
Saturday
Mostly sunny, with a high near 34.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lead SD
 44.35°N 103.77°W (Elev. 5322 ft)
Last Update:
7:47 am MST Jan 11, 2026
Forecast Valid:
8am MST Jan 11, 2026-6pm MST Jan 17, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation