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Keystone, SD
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7-Day Forecast
Today
Sunny
High: 51°
Sunny with a high near 51. Calm wind becoming south around 5 mph.
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Tonight
Mostly Clear
Low: 38°
Mostly clear with a steady temperature around 38. West wind 3 to 6 mph.
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Friday
Mostly Sunny
High: 53°
Mostly sunny with a high near 53. Light and variable wind.
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Friday Night
Partly Cloudy
Low: 32°
Partly cloudy with a low around 32. Light and variable wind becoming southwest around 5 mph in the evening.
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Saturday
Mostly Sunny
High: 53°
Mostly sunny with a high near 53. Southwest wind 5 to 9 mph with gusts as high as 28 mph.
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Saturday Night
Mostly Clear
Low: 29°
Mostly clear with a low around 29. Northwest wind 10 to 13 mph with gusts as high as 29 mph.
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Sunday
Slight Chance Snow
High: 37°
A 20% chance of snow after 11am. Partly sunny with a high near 37. North wind around 8 mph with gusts as high as 22 mph.
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Sunday Night
Slight Chance Snow then Partly Cloudy
Low: 17°
A slight chance of snow before 11pm. Partly cloudy with a low around 17. North wind around 6 mph becoming calm in the evening. Winds could gust as high as 15 mph.
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Monday
Sunny
High: 33°
Sunny with a high near 33.
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Monday Night
Partly Cloudy
Low: 20°
Partly cloudy with a low around 20.
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Tuesday
Mostly Sunny
High: 37°
Mostly sunny with a high near 37.
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Tuesday Night
Partly Cloudy
Low: 22°
Partly cloudy with a low around 22.
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Wednesday
Slight Chance Snow
High: 37°
A slight chance of snow. Mostly sunny with a high near 37.
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Source: National Weather Service
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