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

57°F

14°C

Humidity 31%
Wind Speed W 18 G 25 mph
Barometer 30.04 in
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Last update 12 Jan 5:15 pm MST
Extended Forecast for

2 Miles SW Lead SD

  • Tonight

    Tonight: Increasing clouds, with a low around 38. Breezy, with a west wind 17 to 21 mph, with gusts as high as 43 mph.

    Low: 38 °F

    Increasing
    Clouds and
    Breezy

  • Tuesday

    Tuesday: Rain likely before 10am, then snow likely, possibly mixed with rain. Cloudy, with a temperature falling to around 34 by 5pm. Northwest wind 13 to 16 mph, with gusts as high as 38 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 41 °F⇓

    Rain/Snow
    Likely

  • Tuesday Night

    Tuesday Night: A chance of rain and snow before 7pm, then a chance of snow. Mostly cloudy, with a low around 27. Wind chill values as low as 18. Northwest wind 11 to 16 mph, with gusts as high as 39 mph. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.

    Low: 27 °F

    Chance
    Rain/Snow
    then Slight
    Chance Snow

  • Wednesday

    Wednesday: Mostly sunny, with a high near 39. Wind chill values as low as 18. Northwest wind 5 to 9 mph, with gusts as high as 25 mph.

    High: 39 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a steady temperature around 34. West wind 6 to 16 mph, with gusts as high as 38 mph.

    Low: 34 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a temperature rising to near 36 by 11am, then falling to around 27 during the remainder of the day. Northwest wind 14 to 17 mph, with gusts as high as 41 mph.

    High: 36 °F⇓

    Mostly Sunny

  • Thursday Night

    Thursday Night: A 30 percent chance of snow, mainly after 11pm. Mostly cloudy, with a low around 16. Blustery, with a northwest wind 22 to 26 mph, with gusts as high as 55 mph.

    Low: 16 °F

    Chance Snow
    and Blustery

  • Friday

    Friday: Partly sunny, with a high near 22. Blustery, with a northwest wind 16 to 25 mph, with gusts as high as 55 mph.

    High: 22 °F

    Partly Sunny
    and Blustery
    then Partly
    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 15.

    Low: 15 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Increasing clouds, with a low around 38. Breezy, with a west wind 17 to 21 mph, with gusts as high as 43 mph.
Tuesday
Rain likely before 10am, then snow likely, possibly mixed with rain. Cloudy, with a temperature falling to around 34 by 5pm. Northwest wind 13 to 16 mph, with gusts as high as 38 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Tuesday Night
A chance of rain and snow before 7pm, then a chance of snow. Mostly cloudy, with a low around 27. Wind chill values as low as 18. Northwest wind 11 to 16 mph, with gusts as high as 39 mph. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.
Wednesday
Mostly sunny, with a high near 39. Wind chill values as low as 18. Northwest wind 5 to 9 mph, with gusts as high as 25 mph.
Wednesday Night
Mostly clear, with a steady temperature around 34. West wind 6 to 16 mph, with gusts as high as 38 mph.
Thursday
Mostly sunny, with a temperature rising to near 36 by 11am, then falling to around 27 during the remainder of the day. Northwest wind 14 to 17 mph, with gusts as high as 41 mph.
Thursday Night
A 30 percent chance of snow, mainly after 11pm. Mostly cloudy, with a low around 16. Blustery, with a northwest wind 22 to 26 mph, with gusts as high as 55 mph.
Friday
Partly sunny, with a high near 22. Blustery, with a northwest wind 16 to 25 mph, with gusts as high as 55 mph.
Friday Night
Mostly cloudy, with a low around 15.
Saturday
Mostly sunny, with a high near 27.
Saturday Night
Mostly clear, with a low around 18.
Sunday
Sunny, with a high near 39.
Sunday Night
Partly cloudy, with a low around 22.
M.L.King Day
Sunny, with a high near 38.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SW Lead SD
 44.33°N 103.8°W (Elev. 5627 ft)
Last Update:
4:41 pm MST Jan 12, 2026
Forecast Valid:
5pm MST Jan 12, 2026-6pm MST Jan 19, 2026
 
Forecast Discussion
 
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Additional Resources

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