Weather Forecast for
Lyman County, SD


Overnight: A slight chance of showers and thunderstorms before 4am. Some of the storms could be severe. Mostly cloudy, with a low around 61. East southeast wind around 16 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.

Sunday: Patchy fog between 7am and 8am. Otherwise, cloudy through mid morning, then gradual clearing and hot, with a high near 90. Southeast wind around 9 mph becoming west in the afternoon.

Sunday Night: A slight chance of showers and thunderstorms after 4am. Increasing clouds, with a low around 63. South southeast wind around 10 mph becoming northeast after midnight. Chance of precipitation is 20%.

Monday: A chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 8am. Cloudy through mid morning, then gradual clearing, with a high near 87. Breezy, with a west northwest wind 14 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 30%.

Monday Night: A slight chance of showers after 1am. Mostly clear, with a low around 59. West southwest wind 10 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.

Tuesday: Sunny, with a high near 88. West northwest wind 9 to 15 mph, with gusts as high as 24 mph.

Tuesday Night: A chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 59. Northwest wind 6 to 8 mph becoming southeast after midnight. Chance of precipitation is 30%.

Wednesday: A slight chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 90. Southeast wind 6 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

Wednesday Night: A slight chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 62. East southeast wind 7 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

Thursday: A slight chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 93. 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: Mostly sunny and hot, with a high near 97. Breezy.

Friday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 66. Chance of precipitation is 30%.

Independence Day: A slight chance of showers and thunderstorms. Mostly sunny and hot, with a high near 92. Chance of precipi

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