Marine and Coastal Impacts from Imelda; Unsettled Weather in the West

Swells and high surf from both Imelda and Humberto are expected to bring dangerous marine conditions and rip currents to much of the East Coast over the next several days. A series of Pacific frontal systems will bring waves of showers and thunderstorms to portions of northern California and the Pacific Northwest through midweek. Read More >

Hazardous Weather Conditions

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Fair

68°F

20°C

Humidity 53%
Wind Speed S 12 mph
Barometer 29.95 in
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 30 Sep 1:35 am MDT
Extended Forecast for

Lead SD

  • Overnight

    Overnight: Mostly clear, with a low around 51. Southwest wind around 7 mph, with gusts as high as 18 mph.

    Low: 51 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 77. Southwest wind 6 to 8 mph, with gusts as high as 20 mph.

    High: 77 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 55. South wind 7 to 10 mph, with gusts as high as 23 mph.

    Low: 55 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 73. Southwest wind 5 to 9 mph becoming light and variable  in the afternoon. Winds could gust as high as 21 mph.

    High: 73 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 55. Calm wind becoming southwest 5 to 7 mph after midnight. Winds could gust as high as 17 mph.

    Low: 55 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 77. Southwest wind 5 to 7 mph, with gusts as high as 17 mph.

    High: 77 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 51. Light and variable wind becoming south around 5 mph after midnight.

    Low: 51 °F

    Partly Cloudy

  • Friday

    Friday: A chance of showers after noon.  Partly sunny, with a high near 65. West wind 5 to 7 mph becoming north in the afternoon. Winds could gust as high as 16 mph.

    High: 65 °F

    Partly Sunny
    then Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers.  Mostly cloudy, with a low around 43.

    Low: 43 °F

    Chance
    Showers

Detailed Forecast

Overnight
Mostly clear, with a low around 51. Southwest wind around 7 mph, with gusts as high as 18 mph.
Tuesday
Sunny, with a high near 77. Southwest wind 6 to 8 mph, with gusts as high as 20 mph.
Tuesday Night
Partly cloudy, with a low around 55. South wind 7 to 10 mph, with gusts as high as 23 mph.
Wednesday
Sunny, with a high near 73. Southwest wind 5 to 9 mph becoming light and variable in the afternoon. Winds could gust as high as 21 mph.
Wednesday Night
Mostly clear, with a low around 55. Calm wind becoming southwest 5 to 7 mph after midnight. Winds could gust as high as 17 mph.
Thursday
Sunny, with a high near 77. Southwest wind 5 to 7 mph, with gusts as high as 17 mph.
Thursday Night
Partly cloudy, with a low around 51. Light and variable wind becoming south around 5 mph after midnight.
Friday
A chance of showers after noon. Partly sunny, with a high near 65. West wind 5 to 7 mph becoming north in the afternoon. Winds could gust as high as 16 mph.
Friday Night
A chance of showers. Mostly cloudy, with a low around 43.
Saturday
A slight chance of showers. Mostly sunny, with a high near 62.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 41.
Sunday
A chance of showers. Partly sunny, with a high near 52.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 36.
Monday
A chance of showers. Mostly cloudy, with a high near 48.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Lead SD
 44.35°N 103.77°W (Elev. 5322 ft)
12:41 am MDT Sep 30, 2025
1am MDT Sep 30, 2025-6pm MDT Oct 6, 2025
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database