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

Thunderstorms and Heavy Rains Across Portions of the Central and Eastern US; Heat Expands to Portions of the East

Widespread showers and thunderstorms, some severe, may produce heavy downpours and flash flooding across much of the eastern and central U.S. Dangerous heat will continue in the Pacific Northwest and expand across portions of the East. Deep tropical moisture and associated thunderstorms will bring heavy rainfall and localized flash flooding across portions of Florida into the central Gulf Coast. Read More >

Hazardous Weather Conditions

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Thunderstorm in Vicinity

55°F

13°C

Humidity 100%
Wind Speed E 13 mph
Barometer 30.13 in
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Wind Chill51°F (11°C)
Last update 15 Jul 11:35 pm MDT
Extended Forecast for

Belle Fourche SD

  • Tonight

    Tonight: Showers and possibly a thunderstorm, mainly before 3am, then a chance of showers and thunderstorms after 3am. Patchy fog. Low around 51. East wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%.

    Low: 51 °F

    Showers and
    Patchy Fog

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm, mainly before 3pm, then a chance of showers and thunderstorms after 3pm. Areas of smoke before 9am. Areas of fog. High near 58. East wind around 15 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.

    High: 58 °F

    Showers and
    Areas Fog

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers before midnight. Patchy fog before midnight. Otherwise, mostly cloudy, with a low around 48. Southeast wind around 10 mph, with gusts as high as 20 mph.

    Low: 48 °F

    Slight Chance
    Showers and
    Patchy Fog
    then Mostly
    Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 78. East wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 78 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A 30 percent chance of showers and thunderstorms. Mostly clear, with a low around 56. East wind 5 to 15 mph becoming southwest after midnight. Winds could gust as high as 25 mph.

    Low: 56 °F

    Chance
    T-storms

  • Friday

    Friday: Sunny, with a high near 83. West wind 5 to 10 mph becoming northeast in the afternoon. Winds could gust as high as 15 mph.

    High: 83 °F

    Sunny

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms after midnight. Mostly cloudy, with a low around 59. Northeast wind 5 to 10 mph becoming south after midnight. Winds could gust as high as 15 mph.

    Low: 59 °F

    Partly Cloudy
    then Chance
    Showers

  • Saturday

    Saturday: A chance of showers, with thunderstorms also possible after noon. Mostly sunny, with a high near 85. East wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 85 °F

    Chance
    Showers then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms, mainly before midnight. Partly cloudy, with a low around 61.

    Low: 61 °F

    Chance
    T-storms

Detailed Forecast

Tonight
Showers and possibly a thunderstorm, mainly before 3am, then a chance of showers and thunderstorms after 3am. Patchy fog. Low around 51. East wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%.
Wednesday
Showers and possibly a thunderstorm, mainly before 3pm, then a chance of showers and thunderstorms after 3pm. Areas of smoke before 9am. Areas of fog. High near 58. East wind around 15 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.
Wednesday Night
A 20 percent chance of showers before midnight. Patchy fog before midnight. Otherwise, mostly cloudy, with a low around 48. Southeast wind around 10 mph, with gusts as high as 20 mph.
Thursday
Mostly sunny, with a high near 78. East wind 10 to 15 mph, with gusts as high as 25 mph.
Thursday Night
A 30 percent chance of showers and thunderstorms. Mostly clear, with a low around 56. East wind 5 to 15 mph becoming southwest after midnight. Winds could gust as high as 25 mph.
Friday
Sunny, with a high near 83. West wind 5 to 10 mph becoming northeast in the afternoon. Winds could gust as high as 15 mph.
Friday Night
A 30 percent chance of showers and thunderstorms after midnight. Mostly cloudy, with a low around 59. Northeast wind 5 to 10 mph becoming south after midnight. Winds could gust as high as 15 mph.
Saturday
A chance of showers, with thunderstorms also possible after noon. Mostly sunny, with a high near 85. East wind 5 to 15 mph, with gusts as high as 20 mph.
Saturday Night
A chance of showers and thunderstorms, mainly before midnight. Partly cloudy, with a low around 61.
Sunday
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 89.
Sunday Night
A slight chance of showers and thunderstorms. Mostly clear, with a low around 62.
Monday
Sunny, with a high near 89.
Monday Night
A slight chance of showers and thunderstorms. Mostly clear, with a low around 60.
Tuesday
A slight chance of showers and thunderstorms. Sunny, with a high near 89.
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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:
11:10 pm MDT Jul 15, 2025
Forecast Valid:
11pm MDT Jul 15, 2025-6pm MDT Jul 22, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation