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

Autumn Temperatures for Eastern Third of the Country; Super Typhoon Approaching Guam

Cooler and less humid conditions for the eastern third of the nation as a cold slides off the east coast. Combination of dry and breezy conditions may result in spread of wildfires across the lower Mississippi Valley. In addition, fire weather conditions linger into portions of Southern California. For Guam, a super typhoon is approaching. Read More >

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Fair

73°F

23°C

Humidity 12%
Wind Speed Calm
Barometer 30.12 in
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Last update 17 Oct 11:15 am MDT
Extended Forecast for

10 Miles W Lead SD

  • Today

    Today: Sunny, with a high near 70. West wind 3 to 6 mph. Winds could gust as high as 16 mph.

    High: 70 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 44. Southwest wind 5 to 7 mph becoming calm after midnight. Winds could gust as high as 18 mph.

    Low: 44 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 59. Calm wind becoming northeast around 5 mph in the afternoon. Winds could gust as high as 15 mph.

    High: 59 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 39. South wind around 5 mph, with gusts as high as 16 mph.

    Low: 39 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 63. South wind around 5 mph becoming calm in the afternoon. Winds could gust as high as 15 mph.

    High: 63 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 43. Calm wind becoming south 5 to 7 mph in the evening. Winds could gust as high as 21 mph.

    Low: 43 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 66.

    High: 66 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 65.

    High: 65 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 70. West wind 3 to 6 mph. Winds could gust as high as 16 mph.
Tonight
Partly cloudy, with a low around 44. Southwest wind 5 to 7 mph becoming calm after midnight. Winds could gust as high as 18 mph.
Sunday
Sunny, with a high near 59. Calm wind becoming northeast around 5 mph in the afternoon. Winds could gust as high as 15 mph.
Sunday Night
Mostly clear, with a low around 39. South wind around 5 mph, with gusts as high as 16 mph.
Monday
Sunny, with a high near 63. South wind around 5 mph becoming calm in the afternoon. Winds could gust as high as 15 mph.
Monday Night
Mostly clear, with a low around 43. Calm wind becoming south 5 to 7 mph in the evening. Winds could gust as high as 21 mph.
Tuesday
Sunny, with a high near 66.
Tuesday Night
Mostly clear, with a low around 42.
Wednesday
Sunny, with a high near 65.
Wednesday Night
Mostly clear, with a low around 46.
Thursday
Mostly sunny, with a high near 70.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 47.
Friday
A chance of rain. Partly sunny, with a high near 64.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
10 Miles W Lead SD
 44.34°N 103.95°W (Elev. 5397 ft)
Last Update:
10:41 am MDT Oct 17, 2026
Forecast Valid:
11am MDT Oct 17, 2026-6pm MDT Oct 23, 2026
 
Forecast Discussion
 
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