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

Showers and Thunderstorms in the Southwest and Ohio Valley; Mountain Snow in the Northeast

Showers and thunderstorms, along with high-elevation snow, will begin to develop over parts of the Southwest late tonight and is expected to continue through Wednesday morning. Mountain snow over parts the Northeast will continue through Tuesday. A few strong to severe storms and heavy rainfall are possible across portions of the Lower Ohio Valley Tuesday. Read More >

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Fog

36°F

2°C

Humidity 100%
Wind Speed Calm
Barometer 29.85 in
Dewpoint 36°F (2°C)
Visibility 0.25 mi
Last update 17 Nov 10:15 pm MST
Extended Forecast for

Lead SD

  • Tonight

    Tonight: A 20 percent chance of rain before 11pm. Areas of fog before 11pm. Otherwise, partly cloudy, with a low around 33. Calm wind.

    Low: 33 °F

    Slight Chance
    Rain and
    Areas Fog
    then Partly
    Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 52. Calm wind.

    High: 52 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 36. Light southwest wind.

    Low: 36 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 49. Northwest wind around 6 mph, with gusts as high as 16 mph.

    High: 49 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of rain before 10pm, then a slight chance of rain and snow between 10pm and 4am, then a slight chance of snow after 4am. Partly cloudy, with a low around 29. Light west wind. Chance of precipitation is 20%.

    Low: 29 °F

    Slight Chance
    Rain/Snow

  • Thursday

    Thursday: Sunny, with a high near 46. Light and variable wind.

    High: 46 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 29. Calm wind.

    Low: 29 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 48. West wind 3 to 5 mph.

    High: 48 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 32.

    Low: 32 °F

    Partly Cloudy

Detailed Forecast

Tonight
A 20 percent chance of rain before 11pm. Areas of fog before 11pm. Otherwise, partly cloudy, with a low around 33. Calm wind.
Tuesday
Mostly sunny, with a high near 52. Calm wind.
Tuesday Night
Mostly cloudy, with a low around 36. Light southwest wind.
Wednesday
Mostly sunny, with a high near 49. Northwest wind around 6 mph, with gusts as high as 16 mph.
Wednesday Night
A slight chance of rain before 10pm, then a slight chance of rain and snow between 10pm and 4am, then a slight chance of snow after 4am. Partly cloudy, with a low around 29. Light west wind. Chance of precipitation is 20%.
Thursday
Sunny, with a high near 46. Light and variable wind.
Thursday Night
Mostly clear, with a low around 29. Calm wind.
Friday
Mostly sunny, with a high near 48. West wind 3 to 5 mph.
Friday Night
Partly cloudy, with a low around 32.
Saturday
Mostly sunny, with a high near 47.
Saturday Night
Partly cloudy, with a low around 31.
Sunday
Mostly sunny, with a high near 50.
Sunday Night
Partly cloudy, with a low around 29.
Monday
A slight chance of rain and snow. Mostly sunny, with a high near 45.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lead SD
 44.33°N 103.77°W (Elev. 5197 ft)
Last Update:
9:47 pm MST Nov 17, 2025
Forecast Valid:
10pm MST Nov 17, 2025-6pm MST Nov 24, 2025
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation