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

Widespread Precipitation and Gusty Winds in the West; Snow from the Great Lakes to the Northeast

A Pacific storm system is expected to bring strong winds and more precipitation to the western U.S., along with the likelihood of snowfall into the Sierra Nevada. Accumulating snow will develop downwind from the Great Lakes into parts of the Northeast through Saturday. Polar air will surge into the eastern half of the country this weekend. Read More >

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Fair

34°F

1°C

Humidity 100%
Wind Speed Calm
Barometer 30.03 in
Dewpoint 34°F (1°C)
Visibility 8.00 mi
Last update 12 Nov 9:35 pm MST
Extended Forecast for

Lead SD

  • Tonight

    Tonight: Mostly cloudy, with a temperature rising to around 41 by midnight. Calm wind.

    Low: 37 °F⇑

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 63. Light and variable wind becoming southeast around 6 mph in the morning. Winds could gust as high as 16 mph.

    High: 63 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 39. South wind 5 to 9 mph, with gusts as high as 23 mph.

    Low: 39 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 57. South wind around 5 mph becoming calm in the afternoon.

    High: 57 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 36. Southwest wind 3 to 5 mph. Winds could gust as high as 15 mph.

    Low: 36 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 56. Light and variable wind.

    High: 56 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 38.

    Low: 38 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 59.

    High: 59 °F

    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 40.

    Low: 40 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a temperature rising to around 41 by midnight. Calm wind.
Friday
Partly sunny, with a high near 63. Light and variable wind becoming southeast around 6 mph in the morning. Winds could gust as high as 16 mph.
Friday Night
Mostly cloudy, with a low around 39. South wind 5 to 9 mph, with gusts as high as 23 mph.
Saturday
Mostly sunny, with a high near 57. South wind around 5 mph becoming calm in the afternoon.
Saturday Night
Partly cloudy, with a low around 36. Southwest wind 3 to 5 mph. Winds could gust as high as 15 mph.
Sunday
Sunny, with a high near 56. Light and variable wind.
Sunday Night
Mostly clear, with a low around 38.
Monday
Sunny, with a high near 59.
Monday Night
Mostly cloudy, with a low around 40.
Tuesday
Mostly sunny, with a high near 55.
Tuesday Night
Partly cloudy, with a low around 34.
Wednesday
A chance of rain and snow. Partly sunny, with a high near 46.
Wednesday Night
A chance of snow. Partly cloudy, with a low around 30.
Thursday
A slight chance of snow. Mostly sunny, with a high near 45.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lead SD
 44.35°N 103.77°W (Elev. 5322 ft)
Last Update:
9:46 pm MST Nov 12, 2026
Forecast Valid:
9pm MST Nov 12, 2026-6pm MST Nov 19, 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