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

54°F

12°C

Humidity 22%
Wind Speed NW 9 mph
Barometer 30.04 in
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Wind Chill51°F (11°C)
Last update 12 Feb 2:35 pm MST
Extended Forecast for

Spearfish SD

  • This Afternoon

    This Afternoon: Sunny, with a high near 52. North wind 3 to 6 mph.

    High: 52 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 33. Southwest wind 3 to 6 mph.

    Low: 33 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 55. South wind around 5 mph becoming calm.

    High: 55 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 32. Light and variable 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 northwest in the afternoon.

    High: 55 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 34. Southwest wind around 6 mph.

    Low: 34 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 59. Southwest wind 6 to 9 mph becoming northwest in the afternoon. Winds could gust as high as 17 mph.

    High: 59 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 34. Southwest wind 3 to 5 mph.

    Low: 34 °F

    Decreasing
    Clouds

  • Washington's Birthday

    Washington's Birthday: Sunny, with a high near 59.

    High: 59 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 52. North wind 3 to 6 mph.
Tonight
Mostly clear, with a low around 33. Southwest wind 3 to 6 mph.
Friday
Sunny, with a high near 55. South wind around 5 mph becoming calm.
Friday Night
Mostly clear, with a low around 32. Light and variable wind becoming southwest around 5 mph after midnight.
Saturday
Mostly sunny, with a high near 55. Southwest wind around 6 mph becoming northwest in the afternoon.
Saturday Night
Partly cloudy, with a low around 34. Southwest wind around 6 mph.
Sunday
Partly sunny, with a high near 59. Southwest wind 6 to 9 mph becoming northwest in the afternoon. Winds could gust as high as 17 mph.
Sunday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 34. Southwest wind 3 to 5 mph.
Washington's Birthday
Sunny, with a high near 59.
Monday Night
A slight chance of rain before 11pm. Partly cloudy, with a low around 37.
Tuesday
Rain likely. Partly sunny, with a high near 54. Breezy.
Tuesday Night
A chance of rain and snow. Partly cloudy, with a low around 28. Breezy.
Wednesday
A chance of snow. Partly sunny, with a high near 44.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Spearfish SD
 44.5°N 103.85°W (Elev. 3911 ft)
Last Update:
12:51 pm MST Feb 12, 2026
Forecast Valid:
2pm MST Feb 12, 2026-6pm MST Feb 18, 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