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

Rapid Warm-Up Forecast Across Much of the Lower 48 Today and Tuesday

Most of the U.S. starts the week calm and unseasonably warm. The Heartland will be warmest, with highs 25–30° above average. Only the Gulf Coast stays chilly. Rain today is limited to western Washington while lake effect snow continues east of Lake Ontario. Cooler air returns after Tuesday, bringing a wintry mix to the Midwest and Northeast by Wednesday. Read More >

Hazardous Weather Conditions

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Fair

54°F

12°C

Humidity 30%
Wind Speed W 15 G 24 mph
Barometer 30.13 in
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Wind Chill50°F (10°C)
Last update 12 Jan 10:15 am MST
Extended Forecast for

Spearfish SD

  • Today

    Today: Mostly sunny, with a temperature falling to around 52 by 5pm. Breezy, with a west wind 13 to 20 mph, with gusts as high as 34 mph.

    High: 59 °F⇓

    Mostly Sunny
    then Mostly
    Sunny and
    Breezy

  • Tonight

    Tonight: Increasing clouds, with a low around 45. Breezy, with a west wind around 22 mph, with gusts as high as 36 mph.

    Low: 45 °F

    Increasing
    Clouds and
    Breezy

  • Tuesday

    Tuesday: Rain likely, mainly after 11am. Cloudy, with a temperature rising to near 50 by 9am, then falling to around 44 during the remainder of the day. Breezy, with a west wind 20 to 22 mph, with gusts as high as 38 mph. Chance of precipitation is 60%.

    High: 50 °F⇓

    Rain Likely
    and Breezy

  • Tuesday Night

    Tuesday Night: A chance of rain before 3am, then a slight chance of snow. Mostly cloudy, with a low around 33. Northwest wind 13 to 18 mph, with gusts as high as 32 mph. Chance of precipitation is 30%.

    Low: 33 °F

    Chance Rain
    then Slight
    Chance
    Rain/Snow

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 47. West wind 6 to 10 mph, with gusts as high as 20 mph.

    High: 47 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: Mostly clear, with a temperature rising to around 45 by 4am. Breezy, with a southwest wind 8 to 13 mph increasing to 17 to 22 mph after midnight. Winds could gust as high as 38 mph.

    Low: 40 °F⇑

    Mostly Clear
    then Mostly
    Clear and
    Breezy

  • Thursday

    Thursday: Partly sunny, with a high near 45. Breezy, with a northwest wind 24 to 26 mph, with gusts as high as 43 mph.

    High: 45 °F

    Partly Sunny
    and Breezy

  • Thursday Night

    Thursday Night: A chance of snow, mainly after 11pm. Mostly cloudy, with a low around 23. Windy, with a northwest wind 25 to 31 mph, with gusts as high as 50 mph.

    Low: 23 °F

    Chance Snow
    and Windy

  • Friday

    Friday: A slight chance of snow before 11am. Mostly cloudy, with a high near 31. Windy.

    High: 31 °F

    Slight Chance
    Snow and
    Windy then
    Mostly Cloudy
    and Blustery

Detailed Forecast

Today
Mostly sunny, with a temperature falling to around 52 by 5pm. Breezy, with a west wind 13 to 20 mph, with gusts as high as 34 mph.
Tonight
Increasing clouds, with a low around 45. Breezy, with a west wind around 22 mph, with gusts as high as 36 mph.
Tuesday
Rain likely, mainly after 11am. Cloudy, with a temperature rising to near 50 by 9am, then falling to around 44 during the remainder of the day. Breezy, with a west wind 20 to 22 mph, with gusts as high as 38 mph. Chance of precipitation is 60%.
Tuesday Night
A chance of rain before 3am, then a slight chance of snow. Mostly cloudy, with a low around 33. Northwest wind 13 to 18 mph, with gusts as high as 32 mph. Chance of precipitation is 30%.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 47. West wind 6 to 10 mph, with gusts as high as 20 mph.
Wednesday Night
Mostly clear, with a temperature rising to around 45 by 4am. Breezy, with a southwest wind 8 to 13 mph increasing to 17 to 22 mph after midnight. Winds could gust as high as 38 mph.
Thursday
Partly sunny, with a high near 45. Breezy, with a northwest wind 24 to 26 mph, with gusts as high as 43 mph.
Thursday Night
A chance of snow, mainly after 11pm. Mostly cloudy, with a low around 23. Windy, with a northwest wind 25 to 31 mph, with gusts as high as 50 mph.
Friday
A slight chance of snow before 11am. Mostly cloudy, with a high near 31. Windy.
Friday Night
Mostly cloudy, with a low around 22.
Saturday
Mostly sunny, with a high near 39.
Saturday Night
Partly cloudy, with a low around 27.
Sunday
Sunny, with a high near 46.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Spearfish SD
 44.48°N 103.85°W (Elev. 3780 ft)
Last Update:
10:06 am MST Jan 12, 2026
Forecast Valid:
10am MST Jan 12, 2026-6pm MST Jan 18, 2026
 
Forecast Discussion
 
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