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

Hawaii and Guam Concerns; Severe Weather for the Plains; Heavy Snow for Sierra-Nevada

Heavy rainfall capable of causing flash flooding will continue to impact Hawaii through Monday. Severe thunderstorms and heavy rain are possible in parts of Texas and the southern Plains and the Upper Great Lakes. Heavy mountain snow continues in California's Sierra Nevada and rain with gusty winds to lower elevations. Super Typhoon Sinlaku will impact the Marianas through midweek. Read More >

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Mostly Cloudy

55°F

13°C

Humidity 55%
Wind Speed NE 3 mph
Barometer 29.74 in
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 12 Apr 8:55 pm MDT
Extended Forecast for

Belle Fourche SD

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 41. Southeast wind around 6 mph becoming southwest after midnight.

    Low: 41 °F

    Chance
    Showers then
    Partly Cloudy

  • Monday

    Monday: A 20 percent chance of showers after noon. Mostly sunny, with a high near 70. Breezy, with a south wind 6 to 11 mph becoming west 17 to 22 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 70 °F

    Sunny then
    Slight Chance
    Showers and
    Breezy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 37. Breezy, with a southwest wind 16 to 21 mph decreasing to 6 to 11 mph in the evening. Winds could gust as high as 29 mph.

    Low: 37 °F

    Partly Cloudy
    and Breezy
    then Mostly
    Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 65. West wind 6 to 9 mph becoming northwest in the afternoon. Winds could gust as high as 15 mph.

    High: 65 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 37. North wind 5 to 8 mph becoming south in the evening.

    Low: 37 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 71. Southwest wind 6 to 10 mph becoming west in the afternoon. Winds could gust as high as 16 mph.

    High: 71 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 44. Southeast wind 8 to 13 mph becoming southwest after midnight. Winds could gust as high as 21 mph.

    Low: 44 °F

    Partly Cloudy

  • Thursday

    Thursday: A chance of showers after noon. Mostly sunny, with a high near 64. Breezy, with a southwest wind 14 to 22 mph becoming northwest in the afternoon. Winds could gust as high as 32 mph.

    High: 64 °F

    Breezy.
    Mostly Sunny
    then Chance
    Showers

  • Thursday Night

    Thursday Night: Rain showers likely before 9pm, then rain and snow showers likely between 9pm and 3am, then snow showers likely after 3am. Mostly cloudy, with a low around 26. Blustery.

    Low: 26 °F

    Rain/Snow
    Likely and
    Blustery

Detailed Forecast

Tonight
A 30 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 41. Southeast wind around 6 mph becoming southwest after midnight.
Monday
A 20 percent chance of showers after noon. Mostly sunny, with a high near 70. Breezy, with a south wind 6 to 11 mph becoming west 17 to 22 mph in the afternoon. Winds could gust as high as 30 mph.
Monday Night
Partly cloudy, with a low around 37. Breezy, with a southwest wind 16 to 21 mph decreasing to 6 to 11 mph in the evening. Winds could gust as high as 29 mph.
Tuesday
Mostly sunny, with a high near 65. West wind 6 to 9 mph becoming northwest in the afternoon. Winds could gust as high as 15 mph.
Tuesday Night
Partly cloudy, with a low around 37. North wind 5 to 8 mph becoming south in the evening.
Wednesday
Mostly sunny, with a high near 71. Southwest wind 6 to 10 mph becoming west in the afternoon. Winds could gust as high as 16 mph.
Wednesday Night
Partly cloudy, with a low around 44. Southeast wind 8 to 13 mph becoming southwest after midnight. Winds could gust as high as 21 mph.
Thursday
A chance of showers after noon. Mostly sunny, with a high near 64. Breezy, with a southwest wind 14 to 22 mph becoming northwest in the afternoon. Winds could gust as high as 32 mph.
Thursday Night
Rain showers likely before 9pm, then rain and snow showers likely between 9pm and 3am, then snow showers likely after 3am. Mostly cloudy, with a low around 26. Blustery.
Friday
A chance of snow showers. Mostly cloudy, with a high near 41. Breezy.
Friday Night
A chance of snow showers. Mostly cloudy, with a low around 22.
Saturday
A chance of rain and snow showers. Mostly sunny, with a high near 51.
Saturday Night
Partly cloudy, with a low around 28.
Sunday
Sunny, with a high near 62.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Belle Fourche SD
 44.67°N 103.86°W (Elev. 3025 ft)
Last Update:
8:12 pm MDT Apr 12, 2026
Forecast Valid:
9pm MDT Apr 12, 2026-6pm MDT Apr 19, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation