National Weather Service United States Department of Commerce

Mix of precipitation forecast for much of eastern, southern U.S.

A system moving across the Great Lakes will bring a mix of precipitation from the southern Plains to New England on Tuesday. Rain is forecast from TX across the Southeast and into the mid-Atlantic, with freezing rain, sleet and/or mixed precipitation from the Midwest across the Ohio Valley and Central Appalachians. Snow is forecast from the northern Plains across the Great Lakes into New England.
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Current Conditions

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Keystone SD

7 Day Forecast

For More Weather Information:

Rapid City, SD Local Forecast Office

Tonight

Partly Cloudy

Partly
Cloudy

Low: -5 °F

Wednesday

Sunny

Sunny

High: 14 °F

Wednesday
Night

Mostly Clear

Mostly
Clear

Low: 1 °F

Thursday

Sunny

Sunny

High: 41 °F

Thursday
Night

Partly Cloudy

Partly
Cloudy

Low: 26 °F

Friday

Mostly Sunny

Mostly
Sunny

High: 49 °F

Friday
Night

Partly Cloudy

Partly
Cloudy

Low: 27 °F

Saturday

Mostly Sunny

Mostly
Sunny

High: 47 °F

Saturday
Night

Partly Cloudy

Partly
Cloudy

Low: 28 °F

Detailed Forecast

  • Tonight Partly cloudy, with a low around -5. Wind chill values between -11 and -21. West wind 5 to 9 mph.
  • Wednesday Sunny, with a high near 14. Wind chill values between -10 and -20. Northwest wind 9 to 13 mph, with gusts as high as 18 mph.
  • Wednesday Night Mostly clear, with a low around 1. Wind chill values between -1 and -11. West wind 5 to 7 mph.
  • Thursday Sunny, with a high near 41. West wind around 6 mph.
  • Thursday Night Partly cloudy, with a low around 26. West wind 6 to 11 mph, with gusts as high as 16 mph.
  • Friday Mostly sunny, with a high near 49. Northwest wind 6 to 8 mph.
  • Friday Night Partly cloudy, with a low around 27.
  • Saturday Mostly sunny, with a high near 47.
  • Saturday Night Partly cloudy, with a low around 28.
  • Sunday Mostly sunny, with a high near 50.
  • Sunday Night Mostly clear, with a low around 29.
  • Monday Sunny, with a high near 54.
  • Monday Night Mostly clear, with a low around 31.
  • Tuesday Sunny, with a high near 56.