Fairfax Weather Forecast

    • 52
    • 72

    Decreasing Clouds

    • 37
    • 72

    Mostly Sunny

    • 39
    • 49

    Partly Sunny

    • 47
    • 62

    Mostly Sunny

    • 54
    • 68

    Mostly Cloudy

    • 58
    • 74

    Partly Sunny

    • 57
    • 73

    Partly Sunny

Today 13 Dec South Central Duval

Mostly sunny. Highs in the lower 70s. South Winds around 5 Mph.

Tonight 13 Dec South Central Duval

Partly cloudy this Evening, then clearing. Not as cool with Lows in the lower 50s. Southeast Winds 5 to 10 Mph, becoming southwest after midnight.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Fairfax Temperature Statistics

December Temperature

Jacksonville Naval Air Station (3.7 miles)

  • Lowest 9 December, 2025

    45 °F

  • Average December

    58.6 °F

  • Highest 5 December, 2025

    79 °F

Climate (2020–Present)

Jacksonville Naval Air Station (3.7 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    64.9 °F

  • Average 2020–2025

    72.5 °F

  • Average High 2020–2025

    81 °F
Get WillyWeather+ to remove ads