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Keystone, SD
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7-Day Forecast
Today
Chance Showers then Showers
High: 54°
Showers, mainly after noon. High near 54. North wind 6 to 9 mph. Chance of precipitation is 80%.
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Tonight
Chance Showers then Mostly Clear
Low: 39°
A 30% chance of showers before 9pm. Mostly cloudy, then gradually becoming mostly clear with a low around 39. Northwest wind around 7 mph.
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Thursday
Showers Likely
High: 54°
A chance of showers, then showers likely and possibly a thunderstorm after noon. Mostly sunny with a high near 54. Northwest wind 6 to 10 mph. Chance of precipitation is 60%.
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Thursday Night
Slight Chance T-storms then Mostly Clear
Low: 35°
A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Mostly clear with a low around 35. Northwest wind 5 to 10 mph with gusts as high as 24 mph. Chance of precipitation is 20%.
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Friday
Sunny
High: 60°
Sunny with a high near 60. Calm wind becoming southeast around 6 mph in the afternoon. Winds could gust as high as 17 mph.
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Friday Night
Mostly Clear
Low: 43°
Mostly clear with a low around 43. Southeast wind around 6 mph becoming west after midnight. Winds could gust as high as 16 mph.
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Saturday
Sunny
High: 73°
Sunny with a high near 73. West wind 6 to 8 mph becoming southeast in the afternoon. Winds could gust as high as 22 mph.
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Saturday Night
Mostly Clear
Low: 49°
Mostly clear with a low around 49. Southeast wind 6 to 8 mph becoming southwest after midnight. Winds could gust as high as 21 mph.
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Sunday
Sunny then Slight Chance Showers
High: 75°
A slight chance of showers after noon. Sunny with a high near 75.
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Sunday Night
Chance Showers
Low: 53°
A chance of showers and thunderstorms before midnight, then a slight chance of showers. Partly cloudy with a low around 53.
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Monday
Showers Likely
High: 67°
Showers likely and possibly a thunderstorm. Partly sunny with a high near 67.
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Monday Night
Showers Likely
Low: 45°
Showers likely and possibly a thunderstorm. Mostly cloudy with a low around 45.
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Tuesday
Showers Likely
High: 56°
Showers likely. Mostly cloudy with a high near 56.
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Source: National Weather Service
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