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

Heavy Rain Across the Southern US; Unsettled Pattern in the Pacific Northwest

A storm system will bring heavy rainfall, thunderstorms, and flooding threats to portions of the Southern Plains Friday, the Lower Mississippi Valley Saturday, and the Southeast into the Mid-Atlantic on Sunday. High elevation snow and mixed precipitation and rain in the lower elevations will impact the Pacific Northwest this weekend before a stronger system moves in early next week. Read More >

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Fair

36°F

2°C

Humidity 48%
Wind Speed S 6 mph
Barometer 30.08 in
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Wind Chill31°F (-1°C)
Last update 12 Feb 7:55 pm MST
Extended Forecast for

Lead SD

  • Tonight

    Tonight: Mostly clear, with a low around 29. Calm wind.

    Low: 29 °F

    Mostly Clear

  • Friday

    Friday: Increasing clouds, with a high near 50. Calm wind.

    High: 50 °F

    Increasing
    Clouds

  • Friday Night

    Friday Night: Mostly clear, with a low around 31. Calm wind.

    Low: 31 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 50. Light and variable wind.

    High: 50 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 33. Calm wind becoming southwest around 5 mph after midnight. Winds could gust as high as 16 mph.

    Low: 33 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 54. West wind 3 to 6 mph. Winds could gust as high as 18 mph.

    High: 54 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 33. Light southwest wind.

    Low: 33 °F

    Decreasing
    Clouds

  • Washington's Birthday

    Washington's Birthday: Sunny, with a high near 54. Southwest wind 5 to 8 mph, with gusts as high as 23 mph.

    High: 54 °F

    Sunny

  • Monday Night

    Monday Night: A slight chance of rain before 11pm. Partly cloudy, with a low around 37.

    Low: 37 °F

    Slight Chance
    Rain then
    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 29. Calm wind.
Friday
Increasing clouds, with a high near 50. Calm wind.
Friday Night
Mostly clear, with a low around 31. Calm wind.
Saturday
Mostly sunny, with a high near 50. Light and variable wind.
Saturday Night
Partly cloudy, with a low around 33. Calm wind becoming southwest around 5 mph after midnight. Winds could gust as high as 16 mph.
Sunday
Partly sunny, with a high near 54. West wind 3 to 6 mph. Winds could gust as high as 18 mph.
Sunday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 33. Light southwest wind.
Washington's Birthday
Sunny, with a high near 54. Southwest wind 5 to 8 mph, with gusts as high as 23 mph.
Monday Night
A slight chance of rain before 11pm. Partly cloudy, with a low around 37.
Tuesday
A chance of rain before 11am, then rain and snow likely. Partly sunny, with a high near 49.
Tuesday Night
A chance of rain and snow. Partly cloudy, with a low around 27.
Wednesday
A chance of snow. Partly sunny, with a high near 39.
Wednesday Night
A chance of snow. Mostly cloudy, with a low around 22.
Thursday
A chance of snow. Mostly sunny, with a high near 36.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lead SD
 44.35°N 103.77°W (Elev. 5322 ft)
Last Update:
7:42 pm MST Feb 12, 2026
Forecast Valid:
7pm MST Feb 12, 2026-6pm MST Feb 19, 2026
 
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Additional Resources

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High Temperature

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Chance of Precipitation