Williston Weather Forecast
- 41
- 73
Mostly Sunny
- 46
- 76
Sunny
- 57
- 76
Partly Sunny
- 56
- 77
Mostly Sunny
- 57
- 81
Partly Sunny
- 58
- 78
Mostly Cloudy
- 58
- 76
Chance Rain Showers
Today 26 Oct Barnwell
Partly sunny. Highs around 80.
Tonight 26 Oct Barnwell
Mostly clear. Lows in the lower 40s. Northeast Winds around 5 Mph.
Williston Temperature Statistics
October Temperature
Barnwell Regional Airport (9.9 miles)
Lowest 20 October, 2026
41 °FAverage October
67.1 °FHighest 1 October, 2026
89.6 °F
Climate (2021–2026)
Barnwell Regional Airport (9.9 miles)
Average Low 2021–2026
54.5 °FAverage 2021–2026
65.1 °FAverage High 2021–2026
76.9 °F