Coastal and Marine Impacts from Imelda and Humberto as Both Track Away from the Southeast U.S.

Swells and high surf from both Imelda and Humberto are expected to bring dangerous marine and rip current conditions to the east coast of Florida and Georgia today, spreading north along much of the east coast of the U.S. this week. Heavy rainfall north and west of Imelda falling across coastal Florida and Georgia into the Carolinas could cause isolated flash and urban flooding through Tuesday. Read More >

Hazardous Weather Conditions

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Rain

61°F

16°C

Humidity 100%
Wind Speed S 9 G 16 mph
Barometer 30.00 in
Dewpoint 61°F (16°C)
Visibility 6.00 mi
Last update 29 Sep 4:35 pm MDT
Extended Forecast for

4 Miles SW North Spearfish SD

  • This Afternoon

    This Afternoon: A 30 percent chance of showers and thunderstorms, mainly before 5pm.  Partly sunny, with a steady temperature around 71. Southeast wind around 6 mph.

    High: 71 °F

    Chance
    T-storms

  • Tonight

    Tonight: Partly cloudy, with a low around 60. South wind 7 to 14 mph, with gusts as high as 21 mph.

    Low: 60 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 77. Southwest wind 9 to 11 mph, with gusts as high as 20 mph.

    High: 77 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 58. South wind 10 to 18 mph, with gusts as high as 25 mph.

    Low: 58 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 73. Southwest wind 10 to 15 mph becoming light and variable  in the afternoon. Winds could gust as high as 22 mph.

    High: 73 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 58. Light and variable wind becoming south 8 to 13 mph in the evening. Winds could gust as high as 20 mph.

    Low: 58 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 77. South wind 6 to 13 mph becoming north in the afternoon. Winds could gust as high as 20 mph.

    High: 77 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 53. Northeast wind 6 to 8 mph becoming southwest after midnight.

    Low: 53 °F

    Partly Cloudy

  • Friday

    Friday: A chance of showers, mainly after noon.  Partly sunny, with a high near 63.

    High: 63 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
A 30 percent chance of showers and thunderstorms, mainly before 5pm. Partly sunny, with a steady temperature around 71. Southeast wind around 6 mph.
Tonight
Partly cloudy, with a low around 60. South wind 7 to 14 mph, with gusts as high as 21 mph.
Tuesday
Sunny, with a high near 77. Southwest wind 9 to 11 mph, with gusts as high as 20 mph.
Tuesday Night
Partly cloudy, with a low around 58. South wind 10 to 18 mph, with gusts as high as 25 mph.
Wednesday
Sunny, with a high near 73. Southwest wind 10 to 15 mph becoming light and variable in the afternoon. Winds could gust as high as 22 mph.
Wednesday Night
Mostly clear, with a low around 58. Light and variable wind becoming south 8 to 13 mph in the evening. Winds could gust as high as 20 mph.
Thursday
Sunny, with a high near 77. South wind 6 to 13 mph becoming north in the afternoon. Winds could gust as high as 20 mph.
Thursday Night
Partly cloudy, with a low around 53. Northeast wind 6 to 8 mph becoming southwest after midnight.
Friday
A chance of showers, mainly after noon. Partly sunny, with a high near 63.
Friday Night
A chance of showers. Mostly cloudy, with a low around 45.
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 44.
Sunday
A chance of showers. Partly sunny, with a high near 52.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 39.
Monday
A chance of showers. Mostly cloudy, with a high near 48.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SW North Spearfish SD
 44.47°N 103.97°W (Elev. 5299 ft)
3:22 pm MDT Sep 29, 2025
4pm MDT Sep 29, 2025-6pm MDT Oct 6, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database