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Meteorological spring to start with snow in parts of the U.S. See the forecast. Chevron right
Severe weather risk to increase as weather pattern shifts in March. Get the forecast details. Chevron right

Keystone, SD

56°F
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Keystone

South Dakota

56°
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Keystone, SD Weather
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February 27 - March 28

Fri 2/27

56° /30°
0%
Increasing clouds

RealFeel®56°

RealFeel Shade™52°

Max UV Index3.0 (Moderate)

WindNNW 10 mph

Sat 2/28

47° /17°
1%
Mostly cloudy

RealFeel®44°

RealFeel Shade™39°

Max UV Index3.0 (Moderate)

WindN 9 mph

Sun 3/1

43° /30°
2%
Rather cloudy

RealFeel®42°

RealFeel Shade™38°

Max UV Index3.0 (Moderate)

WindSE 8 mph

Mon 3/2

53° /29°
7%
Warmer; partly sunny in the morning, then mostly cloudy in the afternoon

RealFeel®54°

RealFeel Shade™50°

Max UV Index2.0 (Low)

WindNNE 5 mph

Tue 3/3

53° /31°
14%
Times of clouds and sun

RealFeel®56°

RealFeel Shade™50°

Max UV Index4.0 (Moderate)

WindSE 5 mph

Wed 3/4

63° /32°
4%
Mostly sunny

RealFeel®61°

RealFeel Shade™59°

Max UV Index4.0 (Moderate)

WindSSW 12 mph

Thu 3/5

53° /24°
75%
Rain

RealFeel®47°

RealFeel Shade™47°

Max UV Index2.0 (Low)

WindESE 8 mph

Fri 3/6

51° /23°
44%
A morning flurry or two; otherwise, cloudy

RealFeel®50°

RealFeel Shade™50°

Max UV Index2.0 (Low)

WindNE 6 mph

Sat 3/7

54° /28°
2%
Mostly cloudy

RealFeel®59°

RealFeel Shade™56°

Max UV Index4.0 (Moderate)

WindESE 2 mph

Sun 3/8

50° /24°
68%
Considerable clouds; a shower in spots after temperatures rise above freezing in the morning, then periods of rain in the afternoon

RealFeel®53°

RealFeel Shade™51°

Max UV Index2.0 (Low)

WindWSW 2 mph

Mon 3/9

42° /21°
62%
Cloudy; periods of snow in the morning followed by a couple of flurries in the afternoon

RealFeel®34°

RealFeel Shade™34°

Max UV Index1.0 (Low)

WindN 13 mph

Tue 3/10

46° /22°
5%
Mostly cloudy

RealFeel®50°

RealFeel Shade™48°

Max UV Index2.0 (Low)

WindNNW 4 mph

Wed 3/11

47° /24°
42%
Turning cloudy with a flurry around in the afternoon

RealFeel®54°

RealFeel Shade™52°

Max UV Index4.0 (Moderate)

WindSSE 5 mph

Thu 3/12

46° /20°
57%
Cloudy with occasional rain in the afternoon

RealFeel®38°

RealFeel Shade™37°

Max UV Index2.0 (Low)

WindNNW 15 mph

Fri 3/13

40° /25°
64%
Cloudy and colder; a bit of snow in the morning followed by periods of snow and rain in the afternoon

RealFeel®33°

RealFeel Shade™33°

Max UV Index1.0 (Low)

WindNNW 12 mph

Sat 3/14

39° /21°
20%
Partly sunny

RealFeel®43°

RealFeel Shade™36°

Max UV Index5.0 (Moderate)

WindWNW 6 mph

Sun 3/15

40° /24°
60%
Cloudy; periods of snow in the morning followed by a little rain in the afternoon

RealFeel®26°

RealFeel Shade™26°

Max UV Index1.0 (Low)

WindNW 18 mph

Mon 3/16

39° /23°
20%
Plenty of sunshine

RealFeel®39°

RealFeel Shade™33°

Max UV Index5.0 (Moderate)

WindW 8 mph

Tue 3/17

47° /27°
20%
Sunshine and a few clouds

RealFeel®48°

RealFeel Shade™43°

Max UV Index5.0 (Moderate)

WindWSW 8 mph

Wed 3/18

53° /27°
25%
Cloudy

RealFeel®51°

RealFeel Shade™51°

Max UV Index2.0 (Low)

WindWNW 8 mph

Thu 3/19

44° /24°
25%
Considerable clouds

RealFeel®44°

RealFeel Shade™44°

Max UV Index1.0 (Low)

WindNW 5 mph

Fri 3/20

41° /20°
25%
Sun and some clouds

RealFeel®42°

RealFeel Shade™37°

Max UV Index3.0 (Moderate)

WindN 7 mph

Sat 3/21

40° /18°
20%
Mostly sunny

RealFeel®37°

RealFeel Shade™32°

Max UV Index5.0 (Moderate)

WindNW 10 mph

Sun 3/22

41° /22°
10%
Mostly sunny

RealFeel®44°

RealFeel Shade™39°

Max UV Index5.0 (Moderate)

WindWSW 6 mph

Mon 3/23

53° /29°
25%
Mostly cloudy

RealFeel®52°

RealFeel Shade™50°

Max UV Index1.0 (Low)

WindW 7 mph

Tue 3/24

55° /26°
25%
Turning cloudy

RealFeel®54°

RealFeel Shade™54°

Max UV Index4.0 (Moderate)

WindSSW 6 mph

Wed 3/25

52° /27°
69%
Cloudy; a shower around after temperatures rise above freezing in the morning, then periods of rain in the afternoon

RealFeel®41°

RealFeel Shade™41°

Max UV Index1.0 (Low)

WindNW 16 mph

Thu 3/26

43° /22°
5%
Plenty of sunshine

RealFeel®48°

RealFeel Shade™40°

Max UV Index5.0 (Moderate)

WindWSW 6 mph

Fri 3/27

54° /29°
10%
Sunny

RealFeel®60°

RealFeel Shade™53°

Max UV Index5.0 (Moderate)

WindWSW 5 mph

Sat 3/28

56° /31°
20%
After a cloudy start, sunshine returns

RealFeel®58°

RealFeel Shade™53°

Max UV Index5.0 (Moderate)

WindW 8 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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