Severe Thunderstorms for Mid-Atlantic and Northeast; Typhoon Approaching Guam

A cold front will sweep eastward today accompanied by strong to severe thunderstorms for the mid-Atlantic and Northeast today. In the wake of this cold front, autumn like temperatures and gusty winds from the Plains, Mississippi Valley, Great Lakes to most of the eastern seaboard. Fire weather conditions for lower Mississippi Valley into portions of California. For Guam, a typhoon is approaching. Read More >

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Fair

27°F

-3°C

Humidity 80%
Wind Speed W 6 mph
Barometer 30.72 in
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill20°F (-7°C)
Last update 16 Oct 6:35 am MDT
Extended Forecast for

Lead SD

  • Today

    Today: Sunny, with a high near 50. Light and variable wind.

    High: 50 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 41. Southwest wind 5 to 11 mph, with gusts as high as 26 mph.

    Low: 41 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 73. Southwest wind 5 to 8 mph becoming calm  in the morning. Winds could gust as high as 20 mph.

    High: 73 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 44. Light and variable wind becoming southwest 5 to 8 mph. Winds could gust as high as 23 mph.

    Low: 44 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 57. Light and variable wind becoming north around 6 mph in the morning. Winds could gust as high as 16 mph.

    High: 57 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 37. Light and variable wind.

    Low: 37 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 61.

    High: 61 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 43.

    Low: 43 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 69.

    High: 69 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 50. Light and variable wind.
Tonight
Mostly clear, with a low around 41. Southwest wind 5 to 11 mph, with gusts as high as 26 mph.
Saturday
Sunny, with a high near 73. Southwest wind 5 to 8 mph becoming calm in the morning. Winds could gust as high as 20 mph.
Saturday Night
Mostly clear, with a low around 44. Light and variable wind becoming southwest 5 to 8 mph. Winds could gust as high as 23 mph.
Sunday
Sunny, with a high near 57. Light and variable wind becoming north around 6 mph in the morning. Winds could gust as high as 16 mph.
Sunday Night
Mostly clear, with a low around 37. Light and variable wind.
Monday
Sunny, with a high near 61.
Monday Night
Mostly clear, with a low around 43.
Tuesday
Sunny, with a high near 69.
Tuesday Night
Mostly clear, with a low around 47.
Wednesday
Sunny, with a high near 66.
Wednesday Night
Mostly clear, with a low around 45.
Thursday
Mostly sunny, with a high near 67.
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ABOUT THIS FORECAST

 
Point Forecast:
Lead SD
 44.33°N 103.74°W (Elev. 5518 ft)
5:36 am MDT Oct 16, 2026
6am MDT Oct 16, 2026-6pm MDT Oct 22, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database