Williston Weather Forecast
- 72
- 83
Partly Sunny
- 70
- 90
Rain Showers
- 70
- 86
Thunderstorms Likely
- 68
- 89
Partly Sunny
- 71
- 92
Slight Chance Thunderstorms
- 73
- 91
Slight Chance Thunderstorms
- 70
- 90
Chance Thunderstorms
Today 17 Jun Barnwell
Partly sunny with a chance of Showers and Thunderstorms. Near steady temperature in the mid 80s. Southwest Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain 40 percent.
Tonight 17 Jun Barnwell
Partly cloudy. A slight chance of Showers and Thunderstorms this evening. Lows in the lower 70s. Southwest Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain 20 percent.
Williston Temperature Statistics
June Temperature
Barnwell Regional Airport (9.9 miles)
Lowest 4 June, 2026
53.6 °FAverage June
77.4 °FHighest 12 June, 2026
98.6 °F
Climate (2021–2026)
Barnwell Regional Airport (9.9 miles)
Average Low 2021–2026
54.5 °FAverage 2021–2026
65 °FAverage High 2021–2026
76.7 °F