Fernandina Beach Weather Forecast

    • 74
    • 89

    Thunderstorms Likely

    • 74
    • 88

    Rain Showers Likely

    • 75
    • 88

    Rain Showers Likely

    • 75
    • 89

    Rain Showers Likely

    • 76
    • 87

    Rain Showers Likely

    • 76
    • 87

    Chance Thunderstorms

Today 25 Aug Coastal Nassau

Partly sunny with a chance of Showers with a slight chance of Thunderstorms in the Morning, then mostly cloudy with Showers and Thunderstorms likely in the afternoon. Some Thunderstorms may produce gusty Winds and heavy rainfall in the afternoon. Highs in the lower 90s. Temperature falling into the mid 80s in the afternoon. Southwest Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain 70 percent. Heat index Values up to 105.

Tonight 25 Aug Coastal Nassau

Partly cloudy. Lows in the mid 70s. Southwest Winds around 5 Mph.

Graph Plots Open in Graphs
  • Temperature Forecast NOAA

  • Temperature Real-Time

Fernandina Beach Temperature Statistics

August Temperature

Fernandina Beach Municipal Airport (3.7 miles)

  • Lowest 8 August, 2026

    73.4 °F
  • Average August

    82.1 °F
  • Highest 17 August, 2026

    98.6 °F

Climate (2021–2026)

Fernandina Beach Municipal Airport (3.7 miles)

Take a look at our website widgetsAvailable free! Find Out More
  • Average Low 2021–2026

    62.7 °F
  • Average 2021–2026

    70.1 °F
  • Average High 2021–2026

    78.3 °F
Get WillyWeather+ to remove ads