Spearfish, South Dakota Weather Conditions

Your Weather

To update your location please enter your ZIP code, city, state, airport code or country in the field below. Weather by E-mail: Forecast storm alerts. Weather E-Mail Alert Sign Up »

Current Conditions

  • 54°
  • Clear
  • Wind: NW 7 mph
  • Humidity: 54%
  • Visibility: 10.0 miles
  • Dew Point: 37°
  • Pressure: 30.05 in. 0

Select a Section

Click a section below for more information.

Next 12 Hours

1  pm
4  pm
7  pm
10  pm
1  am
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Clear
Clear
Partly Cloudy
Partly Cloudy
50°
55°
45°
43°
50°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Friday
  • Partly Cloudy
  • High: 55 °
  • Low: 37 °
  • Partly Cloudy
  • Saturday
  • Partly Cloudy
  • High: 72 °
  • Low: 52 °
  • Partly Cloudy
  • Sunday
  • Partly Cloudy
  • High: 59 °
  • Low: 34 °
  • Partly Cloudy
  • Monday
  • Clear
  • High: 45 °
  • Low: 28 °
  • Clear
  • Tuesday
  • Clear
  • High: 55 °
  • Low: 41 °
  • Clear

Forecast for Spearfish, South Dakota

Updated: 10:00 AM CDT on October 31, 2014

  • Friday

    Partly cloudy. Fog early. High of 55F. Winds from the SSE at 10 to 15 mph.

  • Friday Night

    Partly cloudy. Low of 37F. Winds from the South at 5 to 15 mph.

  • Saturday

    Partly cloudy. High of 72F. Winds from the SSE at 5 to 10 mph.

  • Saturday Night

    Partly cloudy. Low of 52F. Winds from the SSW at 10 to 15 mph.

  • Sunday

    Overcast in the morning, then mostly cloudy. High of 59F. Winds from the WSW at 10 to 15 mph.

  • Sunday Night

    Partly cloudy. Low of 34F with a windchill as low as 28F. Winds from the WNW at 5 to 10 mph.

  • Monday

    Partly cloudy in the morning, then clear. High of 45F. Breezy. Winds from the WNW at 10 to 20 mph.

  • Monday Night

    Partly cloudy in the evening, then clear. Low of 28F. Winds from the NW at 5 to 15 mph shifting to the SW after midnight.

  • Tuesday

    Clear. High of 55F. Winds from the SW at 10 to 15 mph.

  • Tuesday Night

    Partly cloudy. Low of 41F. Winds from the WSW at 10 to 15 mph.

  • Wednesday

    Clear. High of 61F. Winds from the WSW at 5 to 15 mph.

  • Wednesday Night

    Partly cloudy. Low of 43F. Winds from the SE at 5 to 10 mph.

  • Thursday

    Clear. High of 59F. Winds from the South at 10 to 15 mph.

  • Thursday Night

    Partly cloudy. Low of 48F. Breezy. Winds from the SW at 15 to 20 mph.

  • Friday

    Partly cloudy. High of 61F. Winds from the WNW at 5 to 20 mph.

  • Friday Night

    Partly cloudy. Low of 32F. Winds from the WNW at 10 to 15 mph.

  • Saturday

    Clear. High of 50F. Winds from the WNW at 10 to 15 mph.

  • Saturday Night

    Clear. Low of 28F. Winds less than 5 mph.

  • Sunday

    Partly cloudy. High of 39F. Winds less than 5 mph.

  • Sunday Night

    Partly cloudy. Low of 30F. Winds less than 5 mph.

  • Monday

    Partly cloudy. High of 46F. Winds from the West at 5 to 10 mph.

  • Monday Night

    Clear. Low of 30F. Winds from the West at 5 to 10 mph.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: TMWC, Spearfish, SD

Updated: 1:07 PM MDT

Temperature: 48.7 °F Dew Point: 37 °F Humidity: 64% Wind: WNW at 2.3 mph Pressure: 29.98 in Hourly Precipitation: 0.00 in Windchill: 49 °F Graphs

Location: Mountain Plains I, Spearfish, SD

Updated: 1:05 PM MDT

Temperature: 50.9 °F Dew Point: 34 °F Humidity: 53% Wind: Calm Pressure: 30.06 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: Spearfish, SD

Updated: 1:04 PM MDT

Temperature: 50.4 °F Dew Point: 37 °F Humidity: 59% Wind: ENE at 3.8 mph Pressure: 29.49 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: County Road 172, Sundance, WY

Updated: 12:57 PM MDT

Temperature: 56.0 °F Dew Point: 31 °F Humidity: 38% Wind: SW at 12.0 mph Pressure: 30.02 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: RAWS FORT MEAD QD #2 SD US, Fort Meade, SD

Updated: 11:41 AM MDT

Temperature: 43 °F Dew Point: 31 °F Humidity: 62% Wind: ESE at 21 mph Pressure: - Hourly Precipitation: 0.00 in Windchill: 34 °F Graphs

Location: HADS ANNIE CREEK NEAR LEAD 6SW SD US USGS, Lead, SD

Updated: 12:30 PM MDT

Temperature: 52 °F Dew Point: - Humidity: - Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: Dumont Trailhead, Lead, SD

Updated: 1:00 PM MDT

Temperature: 45.4 °F Dew Point: 31 °F Humidity: 56% Wind: South at 17.0 mph Pressure: 30.06 in Hourly Precipitation: 0.00 in Windchill: 38 °F Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion for western South Dakota and northeastern Wyoming 
National Weather Service Rapid City South Dakota 
1118 am MDT Friday Oct 31 2014 


Update... 
issued at 955 am MDT Friday Oct 31 2014 


Upper levels have ridge moving across The Rockies into the Great 
Plains. At the surface...Canadian high pressure is located across 
the eastern Dakotas with low pressure over the northern rockies. 
Tight pressure gradient persists between these two features. Skies 
are cloudy across much of the area...with deck of low stratus/fog 
across far western South Dakota and parts of northeast Wyoming. 
Temperatures are in the 20s and 30s with breezy south to southeast 
winds. 


Stratus/fog deck will continue to slowly break up...with the 
northern and eastern foothills seeing the latest improvement. As 
more sun filters through...boundary layer will begin to mix 
better...and south winds should pick up quite a bit by noon. A 
Wind Advisory is still in effect for much of northwest South 
Dakota this afternoon. High temperatures will remain below average 
across the South Dakota plains today. 


&& 


Short term...today through Saturday night 
issued at 310 am MDT Friday Oct 31 2014 


Current surface analysis shows frontal boundary south and west of 
the forecast area...with high pressure centered over eastern ND. 
Colder air has settled across the Dakotas...with east-southeast 
winds developing on the back side of the high. Upper level 
analysis shows a large scale trough over much of the eastern and 
central Continental U.S....a ridge over The Rockies region...and a low 
pressure system off the Pacific coast. Moist...upslope flow at low 
levels is bringing a large band of stratus into the area...with 
some fog developing over western South Dakota and northeast Wyoming. Temperatures are 
mostly in the 30s over cloud covered areas...with some 20s where 
skies remain clear. 


The generally pleasant weather of late will continue into early 
November as ridging pattern mostly stays in place over the region. 
After a gloomy start this morning in many areas...with some areas of 
fog...conditions will improve through the middle and late morning hours 
as clouds gradually dissipate. However...a tight pressure gradient 
in place over the western Dakotas...far eastern Montana...and 
northeastern Wyoming will produce gusty south to southeast winds by early 
afternoon. A Wind Advisory is in effect for this afternoon over 
most of the northwest and west central South Dakota plains...with some gusts 
of 45 to 50 miles per hour expected. Winds will begin to taper off toward 
sunset...but remain breezy into the evening hours in many areas. For 
Halloween activities this evening...temperatures look to be mostly 
in the 40s...with 30s over portions of northwestern into central South Dakota. 
Some warmer air will begin to build into the area from the west 
during the overnight and especially on Saturday as the ridge shifts 
east into the High Plains. Lows tonight will be in the upper 20s and 
30s. 


Unseasonably mild temperatures will return to most areas for 
Saturday...with highs ranging from the upper 50s toward central South Dakota 
to the lower 70s over northeast Wyoming and much of the far southwestern 
South Dakota plains. Mostly sunny skies are expected...with some increase in 
clouds likely in the afternoon and evening. Winds will be from the 
south and southwest over northeast Wyoming and southwest South Dakota...with gusty 
south to southeast winds over south central South Dakota. Gusty southwest 
winds will develop over northeast Wyoming Saturday night ahead of an 
approaching cold front that will pass through on Sunday. 


&& 


Long term...Sunday through Thursday 
issued at 310 am MDT Friday Oct 31 2014 


The models remain in generally good agreement through early next 
week. An upper trough will be located over the western Continental U.S. On 
Saturday night with the upper ridge shifting off to the east. The 
main upper low will cross the northern rockies on Sunday and will 
head northeastward into Saskatchewan as a weak surface cold front 
swings into western South Dakota. Meanwhile the secondary low 
will continue to dig southward into The Four Corners region. Due 
to the split flow...the main forcing will remain to the north and 
south of the forecast area. At this time it appears that with the expected 
path of the northern upper low...dry air aloft will be located 
over much of the forecast area....so have removed the low probability of precipitation 
that were previously in the forecast over northeastern Wyoming and 
northwestern South Dakota. It does look like there may be enough 
instability in the frontal zone to include a chance of showers 
over parts of southwestern and scntrl South Dakota on Sunday night and Monday. Dry 
and cooler weather is then expected through the rest of the week. 


&& 


Aviation...(for the 18z tafs through 18z saturday) 
issued at 1114 am MDT Friday Oct 31 2014 


Local MVFR/IFR ceilings along east side of Black Hills will dissipate 
rapidly early this afternoon. VFR conditions then expected for the 
remainder of the afternoon through tonight. Gusty south winds will 
continue through this afternoon...then diminish this evening. 


&& 


Unr watches/warnings/advisories... 
South Dakota...Wind Advisory until 6 PM MDT this evening for sdz001-002-012>014- 
026-031-032-072-073. 


Wyoming...none. 
&& 


$$ 


Update...15 
short term...26 
long term...10 
aviation...7 



National Weather Service Glossary of Abbreviations

Non-Expanded Version (with abbreviations)

Powered by the Weather Underground, Inc.