Barnwell Weather Forecast
- 51
- 76
Increasing Clouds
- 53
- 76
Mostly Sunny
- 56
- 74
Partly Sunny
- 54
- 78
Partly Sunny
- 57
- 73
Mostly Cloudy
- 31
- 68
Partly Sunny
- 25
- 49
Mostly Sunny
Today 24 Dec Barnwell
Sunny. Near steady temperature in the mid 70s. Light and variable Winds.
Tonight 24 Dec Barnwell
Partly cloudy. Lows in the lower 50s. Light and variable Winds.
Barnwell Temperature Statistics
December Temperature
Barnwell Regional Airport (1.9 miles)
Lowest 15 December, 2025
19.4 °FAverage December
46 °FHighest 13 December, 2025
69.8 °F
Climate (2020–Present)
Barnwell Regional Airport (1.9 miles)
Average Low 2020–2025
54.3 °FAverage 2020–2025
64.8 °FAverage High 2020–2025
76.5 °F