National Weather Service United States Department of Commerce

Heavy rain and mountain snow across the northwestern U.S. this weekend

A Pacific storm system will continue to impact the West Coast through Sunday. Heavy rainfall could lead to flash flooding, river and small stream flooding, as well as mudslides and debris flows, especially over burn scars. At higher elevations, strong winds and heavy snowfall, with accumulations of 1 to 3 feet, could result in hazardous travel through mountain passes.
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Hazardous Weather Conditions

Current Conditions

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4 Miles ENE Custer SD

7 Day Forecast

For More Weather Information:

Rapid City, SD Local Forecast Office

Tonight

Partly Cloudy

Partly
Cloudy

Low: 29 °F

Sunday

Slight Chance Showers Chance for Measurable Precipitation 20%

Slight Chc
Showers

High: 44 °F

Sunday
Night

Chance Rain/Snow Chance for Measurable Precipitation 30%

Chance
Rain/Snow

Low: 30 °F

Monday

Chance Snow Chance for Measurable Precipitation 30%

Chance
Snow

High: 32 °FFalling Temperatures

Monday
Night

Slight Chance Snow Chance for Measurable Precipitation 20%

Slight Chc
Snow

Low: 23 °F

Tuesday

Mostly Sunny

Mostly
Sunny

High: 32 °F

Tuesday
Night

Partly Cloudy

Partly
Cloudy

Low: 22 °F

Wednesday

Mostly Sunny

Mostly
Sunny

High: 38 °F

Wednesday
Night

Slight Chance Snow Chance for Measurable Precipitation 20%

Slight Chc
Snow

Low: 23 °F

Detailed Forecast

  • Tonight Partly cloudy, with a low around 29. West wind 6 to 8 mph.
  • Sunday A 20 percent chance of showers after 11am. Mostly cloudy, with a high near 44. West wind 8 to 11 mph, with gusts as high as 17 mph.
  • Sunday Night A chance of rain showers before 11pm, then a chance of rain and snow showers between 11pm and 2am, then a chance of snow showers after 2am. Mostly cloudy, with a low around 30. West wind 10 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 30%.
  • Monday A 30 percent chance of snow. Partly sunny, with a temperature rising to near 32 by 10am, then falling to around 26 during the remainder of the day. Breezy, with a northwest wind 17 to 22 mph, with gusts as high as 31 mph.
  • Monday Night A 20 percent chance of snow. Mostly cloudy, with a low around 23. Blustery, with a northwest wind 15 to 22 mph, with gusts as high as 31 mph.
  • Tuesday Mostly sunny, with a high near 32. Northwest wind 10 to 15 mph, with gusts as high as 22 mph.
  • Tuesday Night Partly cloudy, with a low around 22.
  • Wednesday Mostly sunny, with a high near 38.
  • Wednesday Night A 20 percent chance of snow. Mostly cloudy, with a low around 23.
  • Christmas Day A 40 percent chance of snow. Mostly cloudy, with a high near 34.
  • Thursday Night A 30 percent chance of snow. Mostly cloudy, with a low around 16.
  • Friday Partly sunny, with a high near 25.
  • Friday Night Partly cloudy, with a low around 13.
  • Saturday Mostly sunny, with a high near 31.