Weather forecast for: Fort Pierre SD
Last Update: 6:21 am CDT Sep 23, 2026
Today: A slight chance of showers and thunderstorms after 4pm. Cloudy, with a high near 73. Breezy, with a south southeast wind 17 to 24 mph, with gusts as high as 36 mph. Chance of precipitation is 20%.
Tonight: A slight chance of showers and thunderstorms before 1am. Cloudy, then gradually becoming partly cloudy, with a low around 58. Breezy, with a southeast wind 17 to 22 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 34 mph. Chance of precipitation is 20%.
Thursday: Mostly cloudy, with a high near 75. South southeast wind 5 to 8 mph becoming north northwest in the afternoon.
Thursday Night: A slight chance of showers after 1am. Mostly cloudy, with a low around 56. East southeast wind 5 to 7 mph. Chance of precipitation is 20%.
Friday: Showers likely, mainly after 1pm. Mostly cloudy, with a high near 70. East southeast wind 9 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night: A slight chance of showers before 1am. Mostly cloudy, with a low around 56. Southeast wind 11 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.
Saturday: Mostly sunny, with a high near 79. Southeast wind 8 to 11 mph becoming northwest in the afternoon.
Saturday Night: Mostly clear, with a low around 55. North northeast wind around 6 mph.
Sunday: Mostly sunny, with a high near 74. North northeast wind 7 to 10 mph becoming east in the afternoon.
Sunday Night: A slight chance of showers, then a chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 58. Chance of precipitation is 50%.
Monday: Showers likely and possibly a thunderstorm. Partly sunny, with a high near 75. Chance of precipitation is 60%.
Monday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 52. Chance of precipitation is 50%.
Tuesday: A chance of showers. Mostly cloudy, with a high near 66. Chance of precipitation is 30%.