Spearfish, South Dakota Weather Conditions

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Current Conditions

  • 81°
  • Clear
  • Wind: Calm
  • Humidity: 30%
  • Visibility: 10.0 miles
  • Dew Point: 46°
  • Pressure: 30.25 in. +

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Next 12 Hours

7  pm
10  pm
1  am
4  am
7  am
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
81°
65°
63°
61°
64°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Friday
  • Clear
  • High: 88 °
  • Low: 64 °
  • Clear
  • Saturday
  • Clear
  • High: 91 °
  • Low: 65 °
  • Clear
  • Sunday
  • Clear
  • High: 93 °
  • Low: 63 °
  • Clear
  • Monday
  • Partly Cloudy
  • High: 88 °
  • Low: 64 °
  • Partly Cloudy
  • Tuesday
  • Chance of a Thunderstorm
  • High: 85 °
  • Low: 62 °
  • Chance of T-Storms

Forecast for Spearfish, South Dakota

Updated: 2:47 PM MDT on July 30, 2015

  • Tonight

    Clear. Lows in the mid 50s. North winds 5 to 10 mph shifting to the south after midnight.

  • Friday

    Mostly sunny. A 20 percent chance of showers and thunderstorms in the afternoon. Highs in the mid 80s. Southeast winds 5 to 10 mph.

  • Friday Night

    Partly cloudy. A 20 percent chance of showers and thunderstorms in the evening. Lows in the upper 50s. South winds 5 to 10 mph.

  • Saturday

    Sunny. Highs in the upper 80s. Northwest winds 5 to 10 mph.

  • Saturday Night

    Clear. Lows in the lower 60s. Southwest winds 5 to 10 mph.

  • Sunday

    Mostly sunny. Highs in the lower 90s.

  • Sunday Night

    Mostly clear. Lows in the lower 60s.

  • Monday

    Partly cloudy. Highs in the mid 80s.

  • Monday Night

    Partly cloudy with a 20 percent chance of showers and thunderstorms. Lows in the lower 60s.

  • Tuesday

    Partly cloudy with a 30 percent chance of showers and thunderstorms. Highs in the lower 80s.

  • Tuesday Night

    Partly cloudy with a 30 percent chance of showers and thunderstorms. Lows around 60.

  • Wednesday

    Partly cloudy with a 20 percent chance of showers and thunderstorms. Highs in the lower 80s.

  • Wednesday Night

    Partly cloudy with a 20 percent chance of showers and thunderstorms. Lows in the upper 50s.

  • Thursday

    Partly cloudy with a 40 percent chance of showers and thunderstorms. Highs in the upper 70s.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: TMWC, Spearfish, SD

Updated: 6:56 PM MDT

Temperature: 86.0 °F Dew Point: 47 °F Humidity: 26% Wind: North at 2.3 mph Pressure: 30.06 in Hourly Precipitation: 0.00 in Heat Index: 83 °F Graphs

Location: Maitland Road, Spearfish, SD

Updated: 6:55 PM MDT

Temperature: 80.4 °F Dew Point: 47 °F Humidity: 30% Wind: North at - Pressure: 30.38 in Hourly Precipitation: - Heat Index: 79 °F Graphs

Location: Gigear Road, Sturgis, SD

Updated: 6:55 PM MDT

Temperature: 81.3 °F Dew Point: 48 °F Humidity: 31% Wind: North at - Pressure: 30.32 in Hourly Precipitation: - Heat Index: 80 °F Graphs

Location: NonFedAWOS, Belle Fourche, SD

Updated: 3:35 PM MDT

Temperature: 88 °F Dew Point: 41 °F Humidity: 19% Wind: WNW at 9 mph Pressure: 30.21 in Hourly Precipitation: 0.00 in Heat Index: 84 °F Graphs

Location: APRSWXNET, Savoy, SD

Updated: 3:35 PM MDT

Temperature: 84 °F Dew Point: 41 °F Humidity: 22% Wind: West at 2 mph Pressure: 30.28 in Hourly Precipitation: 0.00 in Heat Index: 81 °F Graphs

Location: HADS, Lead, SD

Updated: 3:30 PM MDT

Temperature: 77 °F Dew Point: - Humidity: - Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Heat Index: 75 °F Graphs

Location: Dumont Trailhead, Lead, SD

Updated: 6:54 PM MDT

Temperature: 69.0 °F Dew Point: 46 °F Humidity: 43% Wind: Calm Pressure: 30.28 in Hourly Precipitation: 0.00 in Heat Index: - 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 
545 PM MDT Thursday Jul 30 2015 


Short term...this evening through Friday night 
issued at 229 PM MDT Thursday Jul 30 2015 


20z surface analysis shows weak high pressure over the forecast area 
producing mostly sunny skies. A weak trough over the eastern 
Dakotas has tightened the surface pressure gradient and is helping to 
produce breezy conditions over parts of northwestern and central 
South Dakota. 


Tonight/Friday...the upper ridge will continue to build over the 
western Continental U.S. With a thermal ridge expanding eastward over the 
forecast area. On Friday southerly return flow will develop as 
the surface high shifts east. MLCAPE will increase to 250-750j/kg by 
late Friday afternoon over parts of northestern Wyoming...the Black Hills and southwestern South Dakota. 
Models indicate that a weak shortwave may provide enough forcing 
to overcome the cin by late afternoon so have included a slight chance 
of thunderstorms over those areas from late afternoon into early 
evening. Highs on the plains on Friday are expected to range from 
the upper 80s to lower 90s with middle 70s to middle 80s in the Black Hills. 


Long term...Saturday through Thursday 
issued at 229 PM MDT Thursday Jul 30 2015 


Medium range models are in good agreement through the 
first part of the extended period and then differ some toward the 
middle of next week...when conditions are expected to become at 
least a bit more unsettled. Drier northwest flow aloft will remain 
across the region through the weekend and into Monday morning. Other 
than the possibility for a few showers and thunderstorms from far 
southwest into south central South Dakota on Saturday...mainly dry conditions 
should persist through at least early Monday. Temperatures will be above 
average through the weekend...with highs in the 90s across much of 
the plains...80s in the Black Hills. 


As mentioned...the weather pattern will likely become more unsettled 
for the middle part of the week...especially Tuesday... as east to 
southeast winds bring increasing moisture and flow aloft become more 
zonal. Models are still in some disagreement on the timing of 
disturbances passing across...with the European model (ecmwf) still showing more 
potential for storms then the GFS. Although there is plenty of 
uncertainty...Tuesday and Tuesday night still look like the best 
periods for precipitation potential at this time. Temperatures will be slightly 
cooler next week...but still around average. 


&& 


Aviation...for the 00z tafs through 00z Friday evening 
issued at 542 PM MDT Thursday Jul 30 2015 


Clear to scattered clouds through Friday morning. As surface hi pressure builds over forecast 
area...north winds will diminish and become lgt/vrbl. 


&& 


Unr watches/warnings/advisories... 
South Dakota...none. 
Wyoming...none. 
&& 


$$ 


Short term...10 
long term...26 
aviation...55 



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