Erin Strengthens to a Hurricane; Heavy Rainfall Possible in Puerto Rico and the Virgin Islands, the Upper Midwest, South Texas

Hurricane Erin may bring isolated flash and urban flooding, landslides or mudslides, and possible tropical storm conditions to Puerto Rico and the U.S. Virgin Islands this weekend. Scattered thunderstorms and heavy rainfall may bring areas of flooding this weekend over the Upper Midwest. A tropical disturbance will bring locally heavy rain and mainly urban flash flooding to far southern Texas. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Custer, Custer County Airport (KCUT)

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

Overcast

77°F

25°C

Humidity	39%
Wind Speed	Calm
Barometer	30.12 in (1012.2 mb)
Dewpoint	50°F (10°C)
Visibility	10.00 mi
Heat Index	78°F (26°C)
Last update	16 Aug 10:53 am MDT

More Information:

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

Extended Forecast for

3 Miles NNE Custer State Park SD

Today
High: 84 °F
Chance
T-storms
Tonight
Low: 63 °F
Chance
T-storms
Sunday
High: 86 °F
Sunny then
Chance
T-storms
Sunday Night
Low: 63 °F
Slight Chance
T-storms then
Mostly Clear
Monday
High: 86 °F
Sunny then
Chance
T-storms
Monday Night
Low: 62 °F
Mostly Clear
Tuesday
High: 86 °F
Sunny
Tuesday Night
Low: 63 °F
Clear
Wednesday
High: 91 °F
Sunny

Detailed Forecast

Today

A 40 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 84. Northeast wind 5 to 10 mph becoming north in the afternoon. Winds could gust as high as 20 mph.

Tonight

A 30 percent chance of showers and thunderstorms, mainly before midnight. Partly cloudy, with a low around 63. North wind around 5 mph becoming west after midnight. Winds could gust as high as 15 mph.

Sunday

A 30 percent chance of showers and thunderstorms after noon. Sunny, with a high near 86. Northwest wind around 5 mph becoming east in the afternoon. Winds could gust as high as 15 mph.

Sunday Night

A 20 percent chance of showers and thunderstorms before midnight. Mostly clear, with a low around 63. Northeast wind around 5 mph becoming northwest after midnight. Winds could gust as high as 15 mph.

Monday

A 30 percent chance of showers and thunderstorms after noon. Sunny, with a high near 86. Northwest wind 5 to 10 mph becoming southeast in the afternoon. Winds could gust as high as 20 mph.

Monday Night

Mostly clear, with a low around 62. East wind around 5 mph becoming west after midnight. Winds could gust as high as 15 mph.

Tuesday

Sunny, with a high near 86. Northwest wind 5 to 10 mph becoming east in the afternoon. Winds could gust as high as 20 mph.

Tuesday Night

Clear, with a low around 63. East wind 5 to 10 mph becoming west after midnight. Winds could gust as high as 15 mph.

Wednesday

Sunny, with a high near 91.

Wednesday Night

Mostly clear, with a low around 68.

Thursday

Sunny, with a high near 89.