29853 Weather (Williston, SC)

Weather forecast for: Williston SC

Last Update: 2:21 am EDT Sep 4, 2026

Today: Patchy fog before 10am. Otherwise, mostly sunny, with a high near 94. Heat index values as high as 101. Calm wind becoming southeast around 5 mph in the afternoon.

Tonight: Mostly clear, with a low around 73. Light south wind.

Saturday: Sunny, with a high near 95. Heat index values as high as 106. Calm wind.

Saturday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 72. Calm wind. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Sunday: Showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 93. Light and variable wind. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Sunday Night: Showers likely and possibly a thunderstorm before 2am, then a slight chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 71. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.

Labor Day: A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 88. Chance of precipitation is 40%.

Monday Night: A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 69. Chance of precipitation is 30%.

Tuesday: Sunny, with a high near 88.

Tuesday Night: Partly cloudy, with a low around 68.

Wednesday: Mostly sunny, with a high near 90.

Wednesday Night: Mostly clear, with a low around 70.

Thursday: Sunny, with a high near 93.