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Keystone, SD

54°F
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South Dakota

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Keystone, SD Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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September 13 - September 27

Sun 9/13

69° /56°
91%
A brief morning shower or two, then a heavy thunderstorm late this afternoon; thunderstorms can bring localized gusty winds, hail and flooding

RealFeel®70°

RealFeel Shade™65°

Max UV Index5.0 (Moderate)

WindESE 8 mph

Total Hours of Precipitation2.5

Total Hours of Rain2.5

Mon 9/14

74° /43°
3%
Partly sunny and pleasant

RealFeel®76°

RealFeel Shade™71°

Max UV Index5.0 (Moderate)

WindWNW 9 mph

Tue 9/15

65° /46°
5%
Partly sunny

RealFeel®69°

RealFeel Shade™62°

Max UV Index5.0 (Moderate)

WindSSE 8 mph

Wed 9/16

73° /51°
18%
Beautiful with periods of sun

RealFeel®77°

RealFeel Shade™71°

Max UV Index5.0 (Moderate)

WindSE 8 mph

Thu 9/17

71° /55°
12%
High thin cloudiness in the morning, then mainly cloudy in the afternoon

RealFeel®70°

RealFeel Shade™68°

Max UV Index3.0 (Moderate)

WindSE 9 mph

Fri 9/18

70° /46°
25%
Partly sunny and nice

RealFeel®76°

RealFeel Shade™67°

Max UV Index5.0 (Moderate)

WindENE 4 mph

Sat 9/19

70° /45°
66%
Rather cloudy with showers and thunderstorms

RealFeel®69°

RealFeel Shade™69°

Max UV Index1.0 (Low)

WindW 5 mph

Total Hours of Precipitation4.5

Total Hours of Rain4.5

Sun 9/20

74° /47°
1%
Mostly sunny

RealFeel®78°

RealFeel Shade™73°

Max UV Index5.0 (Moderate)

WindNNE 2 mph

Mon 9/21

73° /46°
0%
Plenty of sun

RealFeel®76°

RealFeel Shade™71°

Max UV Index5.0 (Moderate)

WindNNE 5 mph

Tue 9/22

73° /47°
0%
Plenty of sunshine

RealFeel®74°

RealFeel Shade™71°

Max UV Index5.0 (Moderate)

WindS 7 mph

Wed 9/23

79° /50°
0%
Partly sunny

RealFeel®80°

RealFeel Shade™76°

Max UV Index5.0 (Moderate)

WindWSW 9 mph

Thu 9/24

79° /49°
1%
Very warm with sun-soaked conditions

RealFeel®82°

RealFeel Shade™77°

Max UV Index5.0 (Moderate)

WindNE 4 mph

Fri 9/25

75° /46°
9%
Sunshine filtered by passing clouds

RealFeel®77°

RealFeel Shade™73°

Max UV Index5.0 (Moderate)

WindESE 6 mph

Sat 9/26

68° /38°
20%
Plenty of sunshine

RealFeel®72°

RealFeel Shade™65°

Max UV Index5.0 (Moderate)

WindSSW 6 mph

Sun 9/27

74° /47°
5%
Sunshine

RealFeel®76°

RealFeel Shade™72°

Max UV Index5.0 (Moderate)

WindSW 6 mph

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World North America United States South Dakota Keystone

Weather Near Keystone:

  • Rapid City, SD
  • Sheridan, WY
  • Spearfish, SD
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