Dangerous Heat in the Southwest; Severe Thunderstorms and Heavy Rain in the Northeast and Mid-Atlantic

Dangerous heat will persist across the Southwest U.S. through Friday with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week. Strong to severe thunderstorms may produce damaging wind, hail, a tornado or two, heavy rain and flash flooding across parts of the Mid-Atlantic and Northeast. Heavy rainfall threat continues across the Gulf Coast. Read More >

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Fair

91°F

33°C

Humidity 24%
Wind Speed E 14 mph
Barometer 30.09 in
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Heat Index88°F (31°C)
Last update 27 Aug 2:55 pm MDT
Extended Forecast for

Belle Fourche SD

  • Tonight

    Tonight: Mostly cloudy, with a low around 61. East wind 9 to 14 mph becoming light southeast  after midnight. Winds could gust as high as 24 mph.

    Low: 61 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, then gradually becoming sunny, with a high near 95. Light northeast wind becoming north 5 to 9 mph in the morning. Winds could gust as high as 18 mph.

    High: 95 °F

    Decreasing
    Clouds

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms, mainly before 9pm.  Mostly cloudy, then gradually becoming mostly clear, with a low around 62. East wind 5 to 8 mph becoming west after midnight. Winds could gust as high as 17 mph.

    Low: 62 °F

    Chance
    T-storms then
    Partly Cloudy

  • Saturday

    Saturday: A 40 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 93. West wind 5 to 13 mph becoming north in the morning. Winds could gust as high as 24 mph.

    High: 93 °F

    Mostly Sunny
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: A 40 percent chance of showers and thunderstorms before midnight.  Partly cloudy, with a low around 59. Northwest wind 5 to 13 mph becoming west after midnight. Winds could gust as high as 22 mph.

    Low: 59 °F

    Chance
    T-storms then
    Partly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 89. Light and variable wind becoming west 12 to 17 mph in the morning. Winds could gust as high as 29 mph.

    High: 89 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 53.

    Low: 53 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 56.

    Low: 56 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 61. East wind 9 to 14 mph becoming light southeast after midnight. Winds could gust as high as 24 mph.
Friday
Mostly cloudy, then gradually becoming sunny, with a high near 95. Light northeast wind becoming north 5 to 9 mph in the morning. Winds could gust as high as 18 mph.
Friday Night
A 30 percent chance of showers and thunderstorms, mainly before 9pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 62. East wind 5 to 8 mph becoming west after midnight. Winds could gust as high as 17 mph.
Saturday
A 40 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 93. West wind 5 to 13 mph becoming north in the morning. Winds could gust as high as 24 mph.
Saturday Night
A 40 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 59. Northwest wind 5 to 13 mph becoming west after midnight. Winds could gust as high as 22 mph.
Sunday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 89. Light and variable wind becoming west 12 to 17 mph in the morning. Winds could gust as high as 29 mph.
Sunday Night
Partly cloudy, with a low around 53.
Monday
Sunny, with a high near 87.
Monday Night
Partly cloudy, with a low around 56.
Tuesday
Mostly sunny, with a high near 90.
Tuesday Night
Partly cloudy, with a low around 58.
Wednesday
Mostly sunny, with a high near 91.
Wednesday Night
Partly cloudy, with a low around 59.
Thursday
Mostly sunny, with a high near 89.
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ABOUT THIS FORECAST

 
Point Forecast:
Belle Fourche SD
 44.67°N 103.86°W (Elev. 3025 ft)
3:06 pm MDT Aug 27, 2026
3pm MDT Aug 27, 2026-6pm MDT Sep 3, 2026
 
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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