Southwest Jacksonville Weather Forecast
- 38
- 75
Sunny
- 42
- 69
Increasing Clouds
- 48
- 72
Mostly Sunny
- 51
- 68
Partly Sunny
- 49
- 74
Mostly Sunny
- 48
- 74
Partly Sunny
- 49
- 75
Mostly Sunny
Today 19 Dec Western Duval
Sunny. Highs in the mid 70s. Northwest Winds 10 to 15 Mph with Gusts up to 25 Mph.
Tonight 19 Dec Western Duval
Clear. Lows in the upper 30s. North Winds 5 to 10 Mph.
Southwest Jacksonville Temperature Statistics
December Temperature
Cecil Airport (3.1 miles)
Lowest 12 December, 2025
30.2 °FAverage December
51.9 °FHighest 5 December, 2025
80.6 °F
Climate (2020–Present)
Cecil Airport (3.1 miles)
Average Low 2020–2025
58 °FAverage 2020–2025
67 °FAverage High 2020–2025
83 °F