Severe Weather and Heavy Rain for the Plains and Mid-Atlantic; Building Heat in the West

Severe thunderstorms will remain possible in the Mid-Atlantic through Tuesday. Severe thunderstorms and heavy rain will also be possible in the central/southern Plains on Tuesday and Wednesday. Hazardous heat will linger across the southern U.S. and build across the West through mid-week. Hot and dry weather will create Elevated to Critical fire weather conditions in the Four Corners Region. Read More >

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Overcast

54°F

12°C

Humidity 100%
Wind Speed NW 9 mph
Barometer 30.25 in
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Wind Chill51°F (11°C)
Last update 23 Jun 6:15 am MDT
Extended Forecast for

Lead SD

  • Today

    Today: Areas of fog before 8am.  Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 64. Calm wind becoming northwest around 5 mph in the morning. Winds could gust as high as 20 mph.

    High: 64 °F

    Areas Fog
    then Mostly
    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 45. Northwest wind around 5 mph becoming calm  in the evening. Winds could gust as high as 17 mph.

    Low: 45 °F

    Mostly Clear

  • Wednesday

    Wednesday: A slight chance of showers, with thunderstorms also possible after noon.  Partly sunny, with a high near 62. Light and variable wind. Winds could gust as high as 15 mph.  Chance of precipitation is 20%.

    High: 62 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 47. Light and variable wind.

    Low: 47 °F

    Slight Chance
    T-storms

  • Thursday

    Thursday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after noon.  Partly sunny, with a high near 62. Calm wind becoming southeast 5 to 9 mph in the morning. Winds could gust as high as 23 mph.  Chance of precipitation is 70%.

    High: 62 °F

    Chance
    Showers then
    Showers
    Likely

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm before midnight, then a chance of showers and thunderstorms after midnight.  Low around 49. Southeast wind 5 to 7 mph becoming calm  after midnight. Winds could gust as high as 24 mph.  Chance of precipitation is 80%.

    Low: 49 °F

    Showers then
    Chance
    Showers

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 73.

    High: 73 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: A slight chance of showers and thunderstorms before midnight.  Partly cloudy, with a low around 56.

    Low: 56 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Saturday

    Saturday: A chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 79.

    High: 79 °F

    Partly Sunny
    then Chance
    T-storms

Detailed Forecast

Today
Areas of fog before 8am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 64. Calm wind becoming northwest around 5 mph in the morning. Winds could gust as high as 20 mph.
Tonight
Mostly clear, with a low around 45. Northwest wind around 5 mph becoming calm in the evening. Winds could gust as high as 17 mph.
Wednesday
A slight chance of showers, with thunderstorms also possible after noon. Partly sunny, with a high near 62. Light and variable wind. Winds could gust as high as 15 mph. Chance of precipitation is 20%.
Wednesday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 47. Light and variable wind.
Thursday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 62. Calm wind becoming southeast 5 to 9 mph in the morning. Winds could gust as high as 23 mph. Chance of precipitation is 70%.
Thursday Night
Showers and possibly a thunderstorm before midnight, then a chance of showers and thunderstorms after midnight. Low around 49. Southeast wind 5 to 7 mph becoming calm after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 80%.
Friday
A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 73.
Friday Night
A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 56.
Saturday
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 79.
Saturday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 52.
Sunday
A chance of showers and thunderstorms. Mostly sunny, with a high near 70.
Sunday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 48.
Monday
A slight chance of showers and thunderstorms. Sunny, with a high near 68.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Lead SD
 44.35°N 103.77°W (Elev. 5322 ft)
6:22 am MDT Jun 23, 2026
6am MDT Jun 23, 2026-6pm MDT Jun 29, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database