Southside Weather Forecast
- 78
- 95
Thunderstorms Likely
- 78
- 95
Chance Thunderstorms
- 79
- 96
Slight Chance Thunderstorms
- 80
- 98
Slight Chance Thunderstorms
- 80
- 99
Chance Thunderstorms
- 79
- 98
Chance Thunderstorms
Today 14 Aug Coastal Duval
Mostly sunny. A chance of Showers and Thunderstorms in the afternoon. Highs in the mid 90s. West Winds around 5 Mph, becoming south in the afternoon. Chance of rain 50 percent. Heat index Values up to 110.
Tonight 14 Aug Coastal Duval
Partly cloudy with a chance of Showers and Thunderstorms in the Evening, then mostly clear after midnight. Lows in the upper 70s. Southwest Winds 5 to 10 Mph. Chance of rain 50 percent. Heat index Values up to 105 early in the evening.
Southside Temperature Statistics
August Temperature
Jacksonville Naval Air Station (5.6 miles)
Lowest 8 August, 2026
73.9 °FAverage August
81.8 °FHighest 11 August, 2026
97 °F
Climate (2021–2026)
Jacksonville Naval Air Station (5.6 miles)
Average Low 2021–2026
65 °FAverage 2021–2026
72.7 °FAverage High 2021–2026
81.3 °F