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

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

28°F

-2°C

Humidity 51%
Wind Speed Calm
Barometer 30.07 in
Dewpoint 12°F (-11°C)
Visibility 10.00 mi
Last update 12 Feb 6:35 am MST
Extended Forecast for

Spearfish SD

  • Today

    Today: Sunny, with a high near 53. West wind around 6 mph becoming light and variable in the afternoon.

    High: 53 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 32. Southwest wind 3 to 6 mph.

    Low: 32 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 55. South wind around 6 mph becoming light and variable.

    High: 55 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 32. Calm wind becoming southwest around 5 mph after midnight.

    Low: 32 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 55. Southwest wind around 6 mph becoming north in the afternoon.

    High: 55 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 33. Southwest wind around 6 mph.

    Low: 33 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 57. Southwest wind 6 to 8 mph becoming northwest in the afternoon. Winds could gust as high as 16 mph.

    High: 57 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 33. South wind 3 to 5 mph.

    Low: 33 °F

    Decreasing
    Clouds

  • Washington's Birthday

    Washington's Birthday: Sunny, with a high near 57.

    High: 57 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 53. West wind around 6 mph becoming light and variable in the afternoon.
Tonight
Mostly clear, with a low around 32. Southwest wind 3 to 6 mph.
Friday
Sunny, with a high near 55. South wind around 6 mph becoming light and variable.
Friday Night
Mostly clear, with a low around 32. Calm wind becoming southwest around 5 mph after midnight.
Saturday
Mostly sunny, with a high near 55. Southwest wind around 6 mph becoming north in the afternoon.
Saturday Night
Mostly cloudy, with a low around 33. Southwest wind around 6 mph.
Sunday
Partly sunny, with a high near 57. Southwest wind 6 to 8 mph becoming northwest in the afternoon. Winds could gust as high as 16 mph.
Sunday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 33. South wind 3 to 5 mph.
Washington's Birthday
Sunny, with a high near 57.
Monday Night
A chance of rain, mainly before 11pm. Partly cloudy, with a low around 35.
Tuesday
A chance of rain. Partly sunny, with a high near 51. Breezy.
Tuesday Night
A chance of rain and snow. Partly cloudy, with a low around 29.
Wednesday
A chance of snow. Partly sunny, with a high near 45.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Spearfish SD
 44.5°N 103.85°W (Elev. 3911 ft)
Last Update:
5:21 am MST Feb 12, 2026
Forecast Valid:
6am MST Feb 12, 2026-6pm MST Feb 18, 2026
 
Forecast Discussion
 
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