Heavy Rainfall and Flooding Concerns in the Southwest; Coastal Low to Impact the East Coast

Deep tropical moisture will lead to widespread showers and thunderstorms capable of producing flash flooding through early next week over the Southwest and Four Corners. A coastal storm is expected to impact the southeast U.S. coast and mid-Atlantic regions with flooding, dangerous rip currents, gusty winds and heavy rain up much of the East Coast through early next week. Read More >

Hazardous Weather Conditions

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Partly Cloudy and Breezy

64°F

18°C

Humidity 52%
Wind Speed W 22 G 28 mph
Barometer 29.46 in
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 12 Oct 4:35 am MDT
Extended Forecast for

7 Miles SSW Spearfish SD

  • Overnight

    Overnight: A 20 percent chance of showers.  Partly cloudy, with a low around 41. West wind 16 to 18 mph, with gusts as high as 36 mph.

    Low: 41 °F

    Slight Chance
    Showers

  • Sunday

    Sunday: A 50 percent chance of showers between 10am and 2pm.  Cloudy, then gradually becoming mostly sunny, with a high near 52. West wind 11 to 17 mph, with gusts as high as 33 mph.

    High: 52 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Widespread frost, mainly after 11pm.  Otherwise, mostly clear, with a low around 30. Northwest wind 5 to 9 mph becoming calm  in the evening. Winds could gust as high as 18 mph.

    Low: 30 °F

    Frost

  • Columbus Day

    Columbus Day: Widespread frost before 8am.  Otherwise, sunny, with a high near 59. Light south wind becoming southeast 5 to 9 mph in the morning. Winds could gust as high as 21 mph.

    High: 59 °F

    Frost then
    Mostly Sunny

  • Monday Night

    Monday Night: A 30 percent chance of showers after midnight.  Mostly cloudy, with a low around 37. Southeast wind 8 to 10 mph, with gusts as high as 26 mph.

    Low: 37 °F

    Mostly Cloudy
    then Chance
    Showers

  • Tuesday

    Tuesday: A 20 percent chance of showers before noon.  Mostly cloudy, then gradually becoming sunny, with a high near 60. Southeast wind 6 to 8 mph, with gusts as high as 21 mph.

    High: 60 °F

    Slight Chance
    Showers then
    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers after midnight.  Partly cloudy, with a low around 42. Southeast wind around 6 mph, with gusts as high as 17 mph.

    Low: 42 °F

    Mostly Clear
    then Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers, with thunderstorms also possible after noon.  Mostly sunny, with a high near 66. Southeast wind around 6 mph, with gusts as high as 16 mph.

    High: 66 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm.  Mostly cloudy, with a low around 41.

    Low: 41 °F

    Showers
    Likely

Detailed Forecast

Overnight
A 20 percent chance of showers. Partly cloudy, with a low around 41. West wind 16 to 18 mph, with gusts as high as 36 mph.
Sunday
A 50 percent chance of showers between 10am and 2pm. Cloudy, then gradually becoming mostly sunny, with a high near 52. West wind 11 to 17 mph, with gusts as high as 33 mph.
Sunday Night
Widespread frost, mainly after 11pm. Otherwise, mostly clear, with a low around 30. Northwest wind 5 to 9 mph becoming calm in the evening. Winds could gust as high as 18 mph.
Columbus Day
Widespread frost before 8am. Otherwise, sunny, with a high near 59. Light south wind becoming southeast 5 to 9 mph in the morning. Winds could gust as high as 21 mph.
Monday Night
A 30 percent chance of showers after midnight. Mostly cloudy, with a low around 37. Southeast wind 8 to 10 mph, with gusts as high as 26 mph.
Tuesday
A 20 percent chance of showers before noon. Mostly cloudy, then gradually becoming sunny, with a high near 60. Southeast wind 6 to 8 mph, with gusts as high as 21 mph.
Tuesday Night
A 30 percent chance of showers after midnight. Partly cloudy, with a low around 42. Southeast wind around 6 mph, with gusts as high as 17 mph.
Wednesday
A chance of showers, with thunderstorms also possible after noon. Mostly sunny, with a high near 66. Southeast wind around 6 mph, with gusts as high as 16 mph.
Wednesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 41.
Thursday
A chance of showers. Partly sunny, with a high near 52.
Thursday Night
A chance of showers. Partly cloudy, with a low around 36.
Friday
A slight chance of showers. Mostly sunny, with a high near 55.
Friday Night
A chance of showers. Mostly cloudy, with a low around 35.
Saturday
A chance of showers. Mostly sunny, with a high near 49.
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles SSW Spearfish SD
 44.41°N 103.9°W (Elev. 4600 ft)
3:21 am MDT Oct 12, 2025
4am MDT Oct 12, 2025-6pm MDT Oct 18, 2025
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database