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August 11, 2026 Severe Thunderstorms Produce Giant Hail and Extreme Wind

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Fair

66°F

19°C

Humidity	73%
Wind Speed	SE 3 mph
Barometer	30.19 in
Dewpoint	57°F (14°C)
Visibility	10.00 mi
Last update	17 Aug 10:35 pm MDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

3 Miles NW Deadwood SD

Tonight
Low: 56 °F
Slight Chance
T-storms then
Mostly Cloudy
Tuesday
High: 79 °F
Partly Sunny
then Chance
T-storms
Tuesday Night
Low: 54 °F
Chance
T-storms then
Slight Chance
Showers
Wednesday
High: 80 °F
Increasing
Clouds
Wednesday Night
Low: 57 °F
Mostly Clear
Thursday
High: 87 °F
Sunny
Thursday Night
Low: 60 °F
Mostly Clear
Friday
High: 85 °F
Sunny
Friday Night
Low: 59 °F
Mostly Clear

Detailed Forecast

Tonight

A 20 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 56. Light west wind.

Tuesday

A 30 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 79. Calm wind becoming north around 5 mph. Winds could gust as high as 17 mph.

Tuesday Night

A chance of showers and thunderstorms before midnight, then a slight chance of showers. Mostly cloudy, with a low around 54. Light and variable wind becoming southwest around 5 mph. Chance of precipitation is 50%.

Wednesday

Increasing clouds, with a high near 80. Calm wind becoming northwest 5 to 7 mph in the afternoon. Winds could gust as high as 21 mph.

Wednesday Night

Mostly clear, with a low around 57. Northwest wind around 5 mph becoming light and variable. Winds could gust as high as 16 mph.

Thursday

Sunny, with a high near 87. Calm wind becoming north around 6 mph in the afternoon. Winds could gust as high as 18 mph.

Thursday Night

Mostly clear, with a low around 60.

Friday

Sunny, with a high near 85.

Friday Night

Mostly clear, with a low around 59.