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

Hazardous Weather Conditions

Severe Thunderstorm Watch in effect from August 17, 03:00 PM MDT until August 17, 10:00 PM MDT

Current conditions at

Custer, Custer County Airport (KCUT)

Lat: 43.73°NLon: 103.62°WElev: 5600ft.

A Few Clouds

77°F

25°C

Humidity	35%
Wind Speed	W 3 mph
Barometer	30.23 in (1017.3 mb)
Dewpoint	47°F (8°C)
Visibility	10.00 mi
Heat Index	78°F (26°C)
Last update	17 Aug 2:53 pm MDT

More Information:

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

Extended Forecast for

5 Miles NNE Hill City SD

Severe T-storm Watch until August 17, 10:00pm

Click here for hazard details and duration

Severe T-storm Watch

Severe T-storm Watch until August 17, 10:00pm
NOW until 10:00pm Mon
Severe T-storm Watch
This Afternoon
High: 78 °F
Severe
Thunderstorms
Tonight
Low: 53 °F
Severe
Thunderstorms
then Partly
Cloudy
Tuesday
High: 77 °F
Partly Sunny
then T-storms
Likely
Tuesday Night
Low: 51 °F
Chance
T-storms then
Chance
Showers
Wednesday
High: 81 °F
Mostly Sunny
then Chance
T-storms
Wednesday Night
Low: 54 °F
Mostly Clear
Thursday
High: 85 °F
Sunny
Thursday Night
Low: 57 °F
Mostly Clear

Detailed Forecast

This Afternoon

A 40 percent chance of showers and thunderstorms. Some of the storms could be severe. Partly sunny, with a high near 78. Light east wind. Winds could gust as high as 18 mph.

Tonight

A 40 percent chance of showers and thunderstorms, mainly before 9pm. Some of the storms could be severe. Mostly cloudy, with a low around 53. Light and variable wind.

Tuesday

Showers and thunderstorms likely after noon. Partly sunny, with a high near 77. Light and variable wind. Winds could gust as high as 17 mph. Chance of precipitation is 60%.

Tuesday Night

A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 51. Light and variable wind.

Wednesday

A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 81. Light and variable wind. Winds could gust as high as 17 mph.

Wednesday Night

Mostly clear, with a low around 54. Calm wind becoming west around 5 mph after midnight. Winds could gust as high as 17 mph.

Thursday

Sunny, with a high near 85.

Thursday Night

Mostly clear, with a low around 57.

Friday

Sunny, with a high near 82.

Friday Night

Mostly clear, with a low around 56.

Saturday

A slight chance of showers and thunderstorms. Mostly sunny, with a high near 80.