Lake Effect Snow in the Lower Great Lakes; Unsettled Pattern in the Pacific Northwest

Lake-effect snow will continue downwind of Lakes Erie and Ontario through Friday. Lake Effect Snow Warnings have been issued. In the Western U.S., rain and higher elevation snow will continue over the Great Basin through Friday. A front will move over the Pacific Northwest this afternoon and produce light rain and higher elevation snow over the Cascades through Saturday. Read More >

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Fair

52°F

11°C

Humidity 26%
Wind Speed W 12 mph
Barometer 30.08 in
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Wind Chill48°F (9°C)
Last update 12 Feb 12:15 pm MST
Extended Forecast for

4 Miles WSW Lead SD

  • This Afternoon

    This Afternoon: Sunny, with a temperature falling to around 34 by 5pm. West wind around 6 mph, with gusts as high as 17 mph.

    High: 40 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 26. Wind chill values as low as 18. Southwest wind around 7 mph.

    Low: 26 °F

    Mostly Clear

  • Friday

    Friday: Increasing clouds, with a high near 45. Wind chill values as low as 20 early. Southwest wind around 6 mph becoming light and variable  in the afternoon.

    High: 45 °F

    Increasing
    Clouds

  • Friday Night

    Friday Night: Mostly clear, with a low around 25. Wind chill values as low as 18. South wind around 6 mph becoming west after midnight.

    Low: 25 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 44. Northwest wind around 6 mph, with gusts as high as 15 mph.

    High: 44 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 29. Southwest wind 5 to 9 mph, with gusts as high as 17 mph.

    Low: 29 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 47. West wind 6 to 9 mph, with gusts as high as 21 mph.

    High: 47 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 29. Southwest wind around 7 mph, with gusts as high as 15 mph.

    Low: 29 °F

    Decreasing
    Clouds

  • Washington's Birthday

    Washington's Birthday: Sunny, with a high near 48.

    High: 48 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a temperature falling to around 34 by 5pm. West wind around 6 mph, with gusts as high as 17 mph.
Tonight
Mostly clear, with a low around 26. Wind chill values as low as 18. Southwest wind around 7 mph.
Friday
Increasing clouds, with a high near 45. Wind chill values as low as 20 early. Southwest wind around 6 mph becoming light and variable in the afternoon.
Friday Night
Mostly clear, with a low around 25. Wind chill values as low as 18. South wind around 6 mph becoming west after midnight.
Saturday
Mostly sunny, with a high near 44. Northwest wind around 6 mph, with gusts as high as 15 mph.
Saturday Night
Partly cloudy, with a low around 29. Southwest wind 5 to 9 mph, with gusts as high as 17 mph.
Sunday
Partly sunny, with a high near 47. West wind 6 to 9 mph, with gusts as high as 21 mph.
Sunday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 29. Southwest wind around 7 mph, with gusts as high as 15 mph.
Washington's Birthday
Sunny, with a high near 48.
Monday Night
A slight chance of snow before 11pm. Partly cloudy, with a low around 33.
Tuesday
Snow likely. Partly sunny, with a high near 44.
Tuesday Night
Snow likely. Partly cloudy, with a low around 22.
Wednesday
A chance of snow. Partly sunny, with a high near 34.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WSW Lead SD
 44.33°N 103.83°W (Elev. 6398 ft)
11:31 am MST Feb 12, 2026
12pm MST Feb 12, 2026-6pm MST Feb 18, 2026
 
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Additional Resources

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