Extreme Heat and Tropical Storm Bertha Impacts

Dangerous heat will expand from the Gulf Coast into the Southern Plains and Desert Southwest through week's end. Additional extreme heat impacting the Pacific Northwest will shift to the northern Plains by the weekend. Tropical Storm Bertha is expected to continue to impact portions of the northwestern Gulf Coast from south central Louisiana to the upper Texas coast today. Read More >

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Mostly Cloudy

64°F

18°C

Humidity 100%
Wind Speed N 5 mph
Barometer 30.08 in
Dewpoint 64°F (18°C)
Visibility 9.00 mi
Last update 23 Jul 6:15 am MDT
Extended Forecast for

Nisland SD

  • Today

    Today: A chance of showers and thunderstorms before 8am, then a chance of showers between 8am and noon, then a chance of showers and thunderstorms after noon.  Mostly cloudy, with a high near 84. Southeast wind 5 to 10 mph becoming west in the afternoon. Winds could gust as high as 17 mph.  Chance of precipitation is 40%.

    High: 84 °F

    Chance
    T-storms then
    Chance
    Showers

  • Tonight

    Tonight: Mostly clear, with a low around 60. South wind 6 to 11 mph becoming light and variable. Winds could gust as high as 16 mph.

    Low: 60 °F

    Mostly Clear

  • Friday

    Friday: Sunny and hot, with a high near 100. Light and variable wind becoming northwest 8 to 13 mph in the morning. Winds could gust as high as 23 mph.

    High: 100 °F

    Hot

  • Friday Night

    Friday Night: Mostly clear, with a low around 66. Northwest wind 5 to 13 mph becoming southwest in the evening. Winds could gust as high as 21 mph.

    Low: 66 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 106. Light and variable wind becoming south 11 to 16 mph in the morning. Winds could gust as high as 26 mph.

    High: 106 °F

    Hot

  • Saturday Night

    Saturday Night: A 20 percent chance of showers and thunderstorms before midnight.  Partly cloudy, with a low around 72. South wind 9 to 15 mph becoming west after midnight. Winds could gust as high as 23 mph.

    Low: 72 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Sunday

    Sunday: Sunny and hot, with a high near 104. Breezy.

    High: 104 °F

    Hot and
    Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 68.

    Low: 68 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny and hot, with a high near 102. Breezy.

    High: 102 °F

    Mostly Sunny
    then Sunny
    and Breezy

Detailed Forecast

Today
A chance of showers and thunderstorms before 8am, then a chance of showers between 8am and noon, then a chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 84. Southeast wind 5 to 10 mph becoming west in the afternoon. Winds could gust as high as 17 mph. Chance of precipitation is 40%.
Tonight
Mostly clear, with a low around 60. South wind 6 to 11 mph becoming light and variable. Winds could gust as high as 16 mph.
Friday
Sunny and hot, with a high near 100. Light and variable wind becoming northwest 8 to 13 mph in the morning. Winds could gust as high as 23 mph.
Friday Night
Mostly clear, with a low around 66. Northwest wind 5 to 13 mph becoming southwest in the evening. Winds could gust as high as 21 mph.
Saturday
Sunny and hot, with a high near 106. Light and variable wind becoming south 11 to 16 mph in the morning. Winds could gust as high as 26 mph.
Saturday Night
A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 72. South wind 9 to 15 mph becoming west after midnight. Winds could gust as high as 23 mph.
Sunday
Sunny and hot, with a high near 104. Breezy.
Sunday Night
Mostly clear, with a low around 68.
Monday
Mostly sunny and hot, with a high near 102. Breezy.
Monday Night
A chance of showers and thunderstorms before midnight, then a slight chance of showers. Partly cloudy, with a low around 68.
Tuesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 97. Breezy.
Tuesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 67. Breezy.
Wednesday
A slight chance of showers and thunderstorms. Sunny, with a high near 97.
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ABOUT THIS FORECAST

 
Point Forecast:
Nisland SD
 44.66°N 103.56°W (Elev. 2897 ft)
5:37 am MDT Jul 23, 2026
6am MDT Jul 23, 2026-6pm MDT Jul 29, 2026
 
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Additional Resources

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Hourly Weather Forecast

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