National Weather Service United States Department of Commerce

Arctic air to drop temperatures across the northern Plain and northern Rockies; will bring snow to the Intermountain West

An arctic front is forecast to plunge through the northern Plains and northern Rockies on Saturday bringing a drastic drop in temperatures across these areas with a burst of snow over much of the Intermountain Region. Arctic air will also filter into the Pacific Northwest bringing with it snow showers and subfreezing low temperatures.
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Current Conditions

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Rapid City SD

7 Day Forecast

For More Weather Information:

Rapid City, SD Local Forecast Office

Overnight

Partly Cloudy

Partly
Cloudy

Low: 38 °F

Saturday

Slight Chance Rain Chance for Measurable Precipitation 10%

Slight Chc
Rain

High: 53 °F

Saturday
Night

Chance Rain/Snow Chance for Measurable Precipitation 30%

Chance
Rain/Snow

Low: 9 °F

Sunday

Chance Snow Chance for Measurable Precipitation 30%

Chance
Snow

High: 13 °F

Sunday
Night

Mostly Clear

Mostly
Clear

Low: 4 °F

Monday

Sunny

Sunny

High: 30 °F

Monday
Night

Partly Cloudy

Partly
Cloudy

Low: 29 °F

Tuesday

Mostly Sunny

Mostly
Sunny

High: 44 °F

Tuesday
Night

Partly Cloudy

Partly
Cloudy

Low: 21 °F

Detailed Forecast

  • Overnight Partly cloudy, with a low around 38. West wind 10 to 16 mph, with gusts as high as 22 mph.
  • Saturday A 10 percent chance of rain after 5pm. Mostly sunny, with a high near 53. West wind 13 to 17 mph, with gusts as high as 24 mph.
  • Saturday Night A chance of rain and snow before 7pm, then a chance of snow. Mostly cloudy, with a low around 9. Wind chill values between -1 and -11. Blustery, with a north wind 18 to 23 mph, with gusts as high as 32 mph. Chance of precipitation is 30%.
  • Sunday A 30 percent chance of snow, mainly before noon. Cloudy, then gradually becoming mostly sunny, with a steady temperature around 13. Wind chill values between -3 and -13. Blustery, with a northwest wind 20 to 25 mph decreasing to 13 to 18 mph in the afternoon. Winds could gust as high as 36 mph.
  • Sunday Night Mostly clear, with a low around 4. North wind 5 to 9 mph becoming south after midnight.
  • Monday Sunny, with a high near 30. South wind 7 to 13 mph.
  • Monday Night Partly cloudy, with a low around 29.
  • Tuesday Mostly sunny, with a high near 44.
  • Tuesday Night Partly cloudy, with a low around 21.
  • Wednesday Mostly sunny, with a high near 36.
  • Wednesday Night Mostly cloudy, with a low around 25.
  • Thursday Mostly sunny, with a high near 45.
  • Thursday Night Partly cloudy, with a low around 26.
  • Friday Mostly sunny, with a high near 44.