Weather forecast for: Letcher SD
Last Update: 12:33 pm CST Nov 1, 2026
This Afternoon: Mostly cloudy, with a high near 64. Breezy, with a south southeast wind 15 to 20 mph, with gusts as high as 30 mph.
Tonight: Showers, with thunderstorms also possible after 3am. Low around 57. Breezy, with a southeast wind 15 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Monday: Rain and possibly a thunderstorm before 2pm, then a chance of showers, mainly between 2pm and 5pm. High near 68. Windy, with a south southeast wind 25 to 30 mph decreasing to 15 to 20 mph in the afternoon. Winds could gust as high as 40 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Monday Night: A chance of sprinkles before 1am, then showers, mainly after 1am. Low around 45. Windy, with a south southwest wind 15 to 20 mph becoming north northwest 25 to 30 mph after midnight. Winds could gust as high as 40 mph. Chance of precipitation is 80%.
Tuesday: Showers. High near 50. Windy, with a north northwest wind 25 to 30 mph, with gusts as high as 40 mph. Chance of precipitation is 90%.
Tuesday Night: Showers likely, mainly before midnight. Mostly cloudy, with a low around 38. Breezy, with a north northwest wind 15 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 60%.
Wednesday: A 30 percent chance of showers before noon. Partly sunny, with a high near 48. Breezy.
Wednesday Night: Mostly cloudy, with a low around 36.
Thursday: Partly sunny, with a high near 48.
Thursday Night: Partly cloudy, with a low around 33.
Friday: Partly sunny, with a high near 50.
Friday Night: Mostly cloudy, with a low around 36.
Saturday: Partly sunny, with a high near 54.