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

Excessive Rainfall and Tropical Storm in the South; Severe Thunderstorms in the Midwest

Excessive rainfall may produce considerable, potentially life-threatening, flooding across the lower Mississippi River Valley and central Great Lakes region through tonight. Tropical Storm Arthur will move northeastward along the Texas coast today and then move inland over southwestern Louisiana by tonight. An outbreak of severe thunderstorms is expected across portions of Illinois and Indiana. Read More >

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Mostly Cloudy

61°F

16°C

Humidity 52%
Wind Speed W 17 G 26 mph
Barometer 29.77 in
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 17 Jun 9:35 am MDT
Extended Forecast for

Deadwood SD

  • Today

    Today: Mostly sunny, with a high near 66. Breezy, with a northwest wind 18 to 24 mph, with gusts as high as 39 mph.

    High: 66 °F

    Mostly Sunny
    and Breezy

  • Tonight

    Tonight: Mostly clear, with a low around 45. Northwest wind 11 to 16 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 31 mph.

    Low: 45 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 67. Northwest wind 5 to 9 mph, with gusts as high as 22 mph.

    High: 67 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 47. Northwest wind around 6 mph becoming calm in the evening. Winds could gust as high as 17 mph.

    Low: 47 °F

    Partly Cloudy

  • Juneteenth

    Juneteenth: Mostly sunny, with a high near 72. Calm wind becoming north around 6 mph in the morning. Winds could gust as high as 16 mph.

    High: 72 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 50. Northeast wind 5 to 7 mph becoming southeast after midnight. Winds could gust as high as 22 mph.

    Low: 50 °F

    Partly Cloudy

  • Saturday

    Saturday: A chance of showers, then showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 73. Chance of precipitation is 70%.

    High: 73 °F

    Chance
    Showers then
    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm. Mostly cloudy, with a low around 50.

    Low: 50 °F

    Showers

  • Sunday

    Sunday: Showers and possibly a thunderstorm. Mostly cloudy, with a high near 63.

    High: 63 °F

    Showers

Detailed Forecast

Today
Mostly sunny, with a high near 66. Breezy, with a northwest wind 18 to 24 mph, with gusts as high as 39 mph.
Tonight
Mostly clear, with a low around 45. Northwest wind 11 to 16 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 31 mph.
Thursday
Mostly sunny, with a high near 67. Northwest wind 5 to 9 mph, with gusts as high as 22 mph.
Thursday Night
Partly cloudy, with a low around 47. Northwest wind around 6 mph becoming calm in the evening. Winds could gust as high as 17 mph.
Juneteenth
Mostly sunny, with a high near 72. Calm wind becoming north around 6 mph in the morning. Winds could gust as high as 16 mph.
Friday Night
Partly cloudy, with a low around 50. Northeast wind 5 to 7 mph becoming southeast after midnight. Winds could gust as high as 22 mph.
Saturday
A chance of showers, then showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 73. Chance of precipitation is 70%.
Saturday Night
Showers and possibly a thunderstorm. Mostly cloudy, with a low around 50.
Sunday
Showers and possibly a thunderstorm. Mostly cloudy, with a high near 63.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 46.
Monday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 66.
Monday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 46.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 70.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Deadwood SD
 44.38°N 103.72°W (Elev. 4905 ft)
Last Update:
9:48 am MDT Jun 17, 2026
Forecast Valid:
10am MDT Jun 17, 2026-6pm MDT Jun 23, 2026
 
Forecast Discussion
 
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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation