Weather Forecast for
Dewey County, SD


Overnight: Mostly cloudy, with a low around 63. Southeast wind 11 to 16 mph, with gusts as high as 24 mph.

Sunday: Mostly cloudy, then gradually becoming sunny, with a high near 87. South southeast wind 9 to 13 mph becoming west southwest in the afternoon. Winds could gust as high as 21 mph.

Sunday Night: A chance of showers and thunderstorms before 3am, then showers likely and possibly a thunderstorm between 3am and 4am, then a chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 61. South southwest wind 8 to 14 mph becoming north after midnight. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Monday: A chance of showers and thunderstorms, mainly before 4pm. Mostly cloudy through mid morning, then gradual clearing, with a high near 83. North wind 14 to 18 mph becoming west southwest in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 50%.

Monday Night: Mostly clear, with a low around 57. West wind 11 to 17 mph, with gusts as high as 28 mph.

Tuesday: Sunny, with a high near 83. Breezy, with a west wind 14 to 22 mph, with gusts as high as 31 mph.

Tuesday Night: Partly cloudy, with a low around 58. West wind 6 to 16 mph becoming east southeast after midnight. Winds could gust as high as 25 mph.

Wednesday: A chance of showers and thunderstorms, mainly after noon. Mostly sunny, with a high near 87. Southeast wind 7 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.

Wednesday Night: A chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 60. Southeast wind 7 to 10 mph. Chance of precipitation is 30%.

Thursday: A slight chance of showers and thunderstorms after noon. Mostly sunny and hot, with a high near 90. Chance of precipitation is 20%.

Thursday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 62. Chance of precipitation is 30%.

Friday: A slight chance of showers and thunderstorms. Mostly sunny and hot, with a high near 93. Breezy. Chance of precipitation is 20%.

Friday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 65. Chance of precipitation is 30%.

Independence Day: A slight chance of showers and thunderstorms. Mostly sunny, with a high near 88. Chance of precipitation is 20%.

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