Dangerous Heat Wave Continues; Enhanced Area of Severe Thunderstorms Today

A prolonged, dangerous heat wave will continue today in the Midwest and Mississippi Valley, and persist through the Independence Day weekend across the Ohio Valley, Mid-South, and East Coast. Widespread moderate to extreme HeatRisk is forecast. Scattered wind damage and large hail are expected from severe thunderstorms impacting parts of Nebraska into Iowa today. Read More >

Hazardous Weather Conditions

Severe Thunderstorm Watch until July 3, 08:00 PM MDT

Current conditions at

Custer, Custer County Airport (KCUT)

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

Fair

77°F

25°C

Humidity	37%
Wind Speed	Vrbl 6 mph
Barometer	30.12 in (1013.3 mb)
Dewpoint	49°F (9°C)
Visibility	10.00 mi
Heat Index	78°F (26°C)
Last update	3 Jul 2:53 pm MDT

More Information:

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

Extended Forecast for

5 Miles SE Keystone SD

Severe T-storm Watch July 3, 03:01pm until July 3, 08:00pm

Click here for hazard details and duration

Severe T-storm Watch

Severe T-storm Watch July 3, 03:01pm until July 3, 08:00pm
NOW until 8:00pm Fri
Severe T-storm Watch
This Afternoon
High: 78 °F
Severe
Thunderstorms
Tonight
Low: 60 °F
Severe
Thunderstorms
then Mostly
Clear
Independence Day
High: 83 °F
Mostly Sunny
then T-storms
Likely
Saturday Night
Low: 61 °F
Slight Chance
Showers then
Mostly Clear
Sunday
High: 91 °F
Sunny then
Slight Chance
T-storms
Sunday Night
Low: 67 °F
Chance
T-storms then
Mostly Clear
Monday
High: 88 °F
Mostly Sunny
then Slight
Chance
T-storms
Monday Night
Low: 64 °F
Slight Chance
T-storms then
Mostly Cloudy

Detailed Forecast

This Afternoon

Showers and thunderstorms likely, mainly before 4pm. Some of the storms could be severe. Partly sunny, with a high near 78. North wind around 7 mph, with gusts as high as 17 mph. Chance of precipitation is 60%.

Tonight

A 30 percent chance of showers and thunderstorms before 10pm. Some of the storms could be severe. Mostly cloudy, then gradually becoming mostly clear, with a low around 60. Northwest wind 5 to 7 mph becoming light and variable after midnight. Winds could gust as high as 17 mph.

Independence Day

Showers and thunderstorms likely, mainly between noon and 3pm. Increasing clouds, with a high near 83. Calm wind becoming southeast around 6 mph in the morning. Winds could gust as high as 16 mph. Chance of precipitation is 60%.

Saturday Night

A 20 percent chance of showers before midnight. Mostly clear, with a low around 61. East wind around 6 mph becoming light and variable. Winds could gust as high as 15 mph.

Sunday

A 20 percent chance of showers and thunderstorms after noon. Sunny, with a high near 91. West wind 6 to 10 mph becoming southeast in the afternoon. Winds could gust as high as 25 mph.

Sunday Night

A 30 percent chance of showers and thunderstorms before midnight. Mostly clear, with a low around 67. Southeast wind 7 to 9 mph becoming west after midnight. Winds could gust as high as 23 mph.

Monday

A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 88.

Monday Night

A slight chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 64.

Tuesday

A chance of showers and thunderstorms after noon. Partly sunny, with a high near 86.

Tuesday Night

Showers likely and possibly a thunderstorm before midnight. Mostly cloudy, with a low around 64.

Wednesday

A chance of showers and thunderstorms. Mostly sunny, with a high near 86.

Wednesday Night

A chance of showers and thunderstorms. Partly cloudy, with a low around 63.