Weather forecast for: Chester SD
Last Update: 11:02 am CDT Sep 14, 2026
This Afternoon: Showers likely, with thunderstorms also possible after 4pm. Cloudy, with a high near 70. Breezy, with a south wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight: A 20 percent chance of showers and thunderstorms before 9pm. Cloudy, then gradually becoming partly cloudy, with a low around 51. West southwest wind 5 to 15 mph becoming northwest in the evening. Winds could gust as high as 25 mph.
Tuesday: Sunny, with a high near 71. Northwest wind 5 to 15 mph, with gusts as high as 20 mph.
Tuesday Night: Clear, then becoming mostly cloudy toward daybreak, with a low around 49. Calm wind becoming east around 5 mph after midnight.
Wednesday: A 30 percent chance of showers. Mostly cloudy, with a high near 69. Southeast wind 5 to 15 mph, with gusts as high as 25 mph.
Wednesday Night: Mostly cloudy, with a low around 56. South southeast wind 5 to 10 mph becoming northeast after midnight.
Thursday: A 30 percent chance of showers after 1pm. Partly sunny, with a high near 76.
Thursday Night: A chance of showers, then showers and possibly a thunderstorm after 1am. Low around 60. Chance of precipitation is 80%.
Friday: Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 78. Chance of precipitation is 70%.
Friday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 60. Chance of precipitation is 60%.
Saturday: A 30 percent chance of showers. Mostly cloudy, with a high near 73.
Saturday Night: A 30 percent chance of showers. Mostly cloudy, with a low around 54.
Sunday: Partly sunny, with a high near 70.