Heavy Rainfall Threat for Portions of Mid-Atlantic and Northeast; Heat Linger for Southeast and Expands for the West

Moisture and nearby frontal boundary will focus more showers and thunderstorms for portions of the Mid-Atlantic and Northeast today. Rainfall could be locally heavy resulting instances of flash flooding. Meanwhile, the heat lingers for areas of the Southeast and expands across the Western U.S. the next several days. Between these areas, severe thunderstorms possible for the Plains and Midwest. Read More >

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Fair

84°F

29°C

Humidity 33%
Wind Speed N 12 mph
Barometer 30.12 in
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 6 Jul 10:15 am MDT
Extended Forecast for

Nisland SD

  • Today

    Today: Sunny, with a high near 94. Northwest wind around 17 mph becoming northeast in the afternoon. Winds could gust as high as 29 mph.

    High: 94 °F

    Sunny

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly between midnight and 3am.  Increasing clouds, with a low around 64. East wind 9 to 17 mph, with gusts as high as 24 mph.

    Low: 64 °F

    Partly Cloudy
    then Chance
    T-storms

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms.  Mostly cloudy, with a high near 88. East wind 11 to 16 mph, with gusts as high as 25 mph.

    High: 88 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm before midnight, then a chance of showers.  Mostly cloudy, with a low around 60. East wind 6 to 14 mph becoming northwest after midnight. Winds could gust as high as 23 mph.  Chance of precipitation is 60%.

    Low: 60 °F

    Showers
    Likely then
    Chance
    Showers

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 88. Northwest wind 6 to 14 mph becoming east in the afternoon. Winds could gust as high as 20 mph.

    High: 88 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms, mainly before midnight.  Partly cloudy, with a low around 59. Southeast wind 6 to 14 mph, with gusts as high as 20 mph.

    Low: 59 °F

    Chance
    T-storms

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm.  Mostly sunny, with a high near 87. Chance of precipitation is 60%.

    High: 87 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: A slight chance of showers and thunderstorms before midnight.  Partly cloudy, with a low around 58.

    Low: 58 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 91. Breezy.

    High: 91 °F

    Mostly Sunny
    then Sunny
    and Breezy

Detailed Forecast

Today
Sunny, with a high near 94. Northwest wind around 17 mph becoming northeast in the afternoon. Winds could gust as high as 29 mph.
Tonight
A 30 percent chance of showers and thunderstorms, mainly between midnight and 3am. Increasing clouds, with a low around 64. East wind 9 to 17 mph, with gusts as high as 24 mph.
Tuesday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 88. East wind 11 to 16 mph, with gusts as high as 25 mph.
Tuesday Night
Showers likely and possibly a thunderstorm before midnight, then a chance of showers. Mostly cloudy, with a low around 60. East wind 6 to 14 mph becoming northwest after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 60%.
Wednesday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 88. Northwest wind 6 to 14 mph becoming east in the afternoon. Winds could gust as high as 20 mph.
Wednesday Night
A 30 percent chance of showers and thunderstorms, mainly before midnight. Partly cloudy, with a low around 59. Southeast wind 6 to 14 mph, with gusts as high as 20 mph.
Thursday
Showers likely and possibly a thunderstorm. Mostly sunny, with a high near 87. Chance of precipitation is 60%.
Thursday Night
A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 58.
Friday
Sunny, with a high near 91. Breezy.
Friday Night
Mostly clear, with a low around 63. Breezy.
Saturday
Sunny and hot, with a high near 100.
Saturday Night
Mostly clear, with a low around 69.
Sunday
Sunny and hot, with a high near 101. Breezy.
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ABOUT THIS FORECAST

 
Point Forecast:
Nisland SD
 44.66°N 103.56°W (Elev. 2897 ft)
8:57 am MDT Jul 6, 2026
10am MDT Jul 6, 2026-6pm MDT Jul 12, 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