Weather Forecast for
Keystone, SD

Today: A chance of showers, with thunderstorms also possible after noon. Partly sunny, with a high near 79. Northwest wind around 5 mph becoming light and variable in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 40%.

Tonight: A 40 percent chance of showers and thunderstorms, mainly before midnight. Mostly cloudy, with a low around 58. Southeast wind around 5 mph becoming light and variable.

Tuesday: A 50 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 78. Light and variable wind becoming northeast around 6 mph in the afternoon. Winds could gust as high as 17 mph.

Tuesday Night: Showers and thunderstorms likely, mainly after midnight. Mostly cloudy, with a low around 56. North wind around 5 mph becoming light and variable after midnight. Chance of precipitation is 60%.

Wednesday: Showers and thunderstorms likely, mainly after noon. Partly sunny, with a high near 75. Light and variable wind becoming east around 6 mph in the morning. Winds could gust as high as 16 mph. Chance of precipitation is 60%.

Wednesday Night: Mostly clear, with a low around 57. Light and variable wind becoming west around 6 mph after midnight. Winds could gust as high as 17 mph.

Thursday: Sunny, with a high near 83.

Thursday Night: Mostly clear, with a low around 60.

Friday: Sunny, with a high near 83.

Friday Night: Mostly clear, with a low around 60.

Saturday: Mostly sunny, with a high near 82.

Saturday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 63.

Sunday: A slight chance of showers and thunderstorms. Mostly sunny, with a high near 85.

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