National Weather Service United States Department of Commerce

Heavy Snow For the Southern Rockies with Heavy Rain for Portions of the Southwest

A moist flow off the Pacific will bring heavy rain to southern California and Arizona with heavy snow for the southern Rocky Mountains Monday. More freezing rain is possible from the southern Plains to the central Mississippi Valley. Heavy snow is also expected for portions of New England and upstate New York Monday.
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Hazardous Weather Conditions

Current Conditions

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Spearfish SD

7 Day Forecast

For More Weather Information:

Rapid City, SD Local Forecast Office

Tonight

Mostly Clear

Mostly
Clear

Low: 7 °F

Monday

Mostly Sunny

Mostly
Sunny

High: 39 °F

Monday
Night

Snow Chance for Measurable Precipitation 80%

Snow

Low: 3 °F

Tuesday

Snow Chance for Measurable Precipitation 80%

Snow

High: 6 °FFalling Temperatures

Tuesday
Night

Mostly Cloudy

Mostly
Cloudy

Low: -4 °F

Wednesday

Mostly Sunny

Mostly
Sunny

High: 13 °F

Wednesday
Night

Mostly Clear

Mostly
Clear

Low: 6 °F

Thursday

Sunny

Sunny

High: 41 °F

Thursday
Night

Partly Cloudy

Partly
Cloudy

Low: 25 °F

Detailed Forecast

  • Tonight Mostly clear, with a low around 7. Wind chill values between zero and 5. Calm wind becoming south around 5 mph after midnight.
  • Monday Mostly sunny, with a high near 39. South wind around 6 mph becoming northwest in the afternoon.
  • Monday Night Snow, mainly after 11pm. Low around 3. Wind chill values between -2 and -7. Blustery, with a north wind 5 to 10 mph increasing to 17 to 22 mph after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.
  • Tuesday Snow. Temperature falling to around 0 by 5pm. Wind chill values between -13 and -23. Blustery, with a northwest wind 22 to 24 mph, with gusts as high as 33 mph. Chance of precipitation is 80%.
  • Tuesday Night Mostly cloudy, with a low around -4. Northwest wind 10 to 18 mph, with gusts as high as 26 mph.
  • Wednesday Mostly sunny, with a high near 13. Northwest wind 7 to 10 mph.
  • Wednesday Night Mostly clear, with a low around 6.
  • Thursday Sunny, with a high near 41.
  • Thursday Night Partly cloudy, with a low around 25.
  • Friday Mostly sunny, with a high near 44.
  • Friday Night Partly cloudy, with a low around 25.
  • Saturday Sunny, with a high near 45.
  • Saturday Night Mostly clear, with a low around 27.
  • Sunday Mostly sunny, with a high near 47.