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Heat in the Central U.S.; Heavy Rain Possible for South Texas; Monitoring Erin Tropical Impacts

Hot temperatures are forecast over the Plains and into the lower Mississippi River Valley Friday where Heat Advisories have been issued. Heavy rain from a disturbance in the western Gulf could bring flooding to south Texas. Erin could bring tropical storm conditions and heavy rain to Puerto Rico and the USVI this weekend with dangerous surf and rip currents impacting the western Atlantic Basin. Read More >

Hazardous Weather Conditions

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Fair

81°F

27°C

Humidity 48%
Wind Speed N 6 G 12 mph
Barometer 29.95 in
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 14 Aug 7:15 pm MDT
Extended Forecast for

Belle Fourche SD

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before 2am. Mostly cloudy, with a low around 61. Northeast wind 5 to 10 mph becoming east after midnight.

    Low: 61 °F

    Chance
    T-storms

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 86. East wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 86 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 63. East wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 63 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 83. East wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 83 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before midnight, then a slight chance of showers. Partly cloudy, with a low around 63. Southeast wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    Low: 63 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Sunday

    Sunday: A slight chance of showers between noon and 3pm, then a slight chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 86. East wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    High: 86 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms before midnight. Mostly clear, with a low around 60. East wind 5 to 10 mph becoming south after midnight. Winds could gust as high as 15 mph.

    Low: 60 °F

    Chance
    T-storms then
    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 87. Southwest wind 5 to 10 mph becoming east in the morning. Winds could gust as high as 15 mph.

    High: 87 °F

    Sunny

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms before midnight. Mostly clear, with a low around 62.

    Low: 62 °F

    Slight Chance
    T-storms then
    Mostly Clear

Detailed Forecast

Tonight
A 30 percent chance of showers and thunderstorms, mainly before 2am. Mostly cloudy, with a low around 61. Northeast wind 5 to 10 mph becoming east after midnight.
Friday
A 30 percent chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 86. East wind 5 to 15 mph, with gusts as high as 25 mph.
Friday Night
A 20 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 63. East wind 5 to 15 mph, with gusts as high as 20 mph.
Saturday
A 20 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 83. East wind 5 to 15 mph, with gusts as high as 25 mph.
Saturday Night
A chance of showers and thunderstorms before midnight, then a slight chance of showers. Partly cloudy, with a low around 63. Southeast wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Sunday
A slight chance of showers between noon and 3pm, then a slight chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 86. East wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Sunday Night
A 30 percent chance of showers and thunderstorms before midnight. Mostly clear, with a low around 60. East wind 5 to 10 mph becoming south after midnight. Winds could gust as high as 15 mph.
Monday
Sunny, with a high near 87. Southwest wind 5 to 10 mph becoming east in the morning. Winds could gust as high as 15 mph.
Monday Night
A slight chance of showers and thunderstorms before midnight. Mostly clear, with a low around 62.
Tuesday
Sunny, with a high near 90.
Tuesday Night
Mostly clear, with a low around 61.
Wednesday
Sunny, with a high near 92.
Wednesday Night
Mostly clear, with a low around 64.
Thursday
Sunny, with a high near 90.
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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:
6:29 pm MDT Aug 14, 2025
Forecast Valid:
7pm MDT Aug 14, 2025-6pm MDT Aug 21, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation