Weather forecast for: Jefferson SD
Last Update: 7:43 pm CDT Sep 15, 2026
Tonight: Mostly cloudy, with a low around 55. North wind around 5 mph becoming calm.
Wednesday: A 40 percent chance of showers, mainly after 3pm. Mostly cloudy, with a high near 69. East southeast wind 5 to 10 mph.
Wednesday Night: A chance of rain before 1am, then a slight chance of showers and thunderstorms after 2am. Cloudy, with a low around 61. South southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.
Thursday: A chance of showers, with thunderstorms also possible after 4pm. Mostly cloudy, with a high near 77. Light north northeast wind becoming east 5 to 10 mph in the afternoon. Chance of precipitation is 40%.
Thursday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 65. East wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.
Friday: A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm, then a slight chance of showers and thunderstorms after 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 83. Southeast wind around 15 mph becoming west southwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 50%.
Friday Night: A 40 percent chance of showers before 1am. Mostly cloudy, with a low around 63.
Saturday: Mostly cloudy, with a high near 72.
Saturday Night: Mostly cloudy, with a low around 59.
Sunday: Mostly cloudy, with a high near 69.
Sunday Night: Mostly cloudy, with a low around 55.
Monday: Partly sunny, with a high near 68.
Monday Night: Partly cloudy, with a low around 53.
Tuesday: Mostly sunny, with a high near 70.
WeatherWorld.com
City of Jefferson, SD
