Williamson Island Weather Forecast
- 76
- 83
Sunny
- 77
- 84
Mostly Sunny
- 77
- 84
Partly Sunny
- 73
- 86
Chance Rain Showers
- 73
- 80
Rain Showers Likely
- 72
- 80
Rain Showers Likely
Today 4 Sep Coastal Chatham
Sunny. Highs in the mid 80s. East Winds 5 to 10 Mph.
Tonight 4 Sep Coastal Chatham
Mostly clear. Lows in the lower 70s. Southeast Winds 5 to 10 Mph.
Williamson Island Temperature Statistics
September Temperature
Hunter U. S. Army Airfield (14.9 miles)
Lowest 2 September, 2025
74.3 °FAverage September
74.3 °FHighest 2 September, 2025
74.3 °F
Climate (2020–Present)
Hunter U. S. Army Airfield (14.9 miles)
Average Low 2020–2025
59.5 °FAverage 2020–2025
68.1 °FAverage High 2020–2025
77.9 °F