Fairfax Weather Forecast

    • 56
    • 79

    Rain Showers Likely

    • 31
    • 65

    Mostly Sunny

    • 32
    • 50

    Mostly Sunny

    • 34
    • 54

    Mostly Sunny

    • 34
    • 51

    Partly Sunny

    • 39
    • 53

    Mostly Cloudy

Today 25 Jan South Central Duval

Mostly cloudy in the Morning, then becoming partly sunny. Areas of fog in the morning. Visibility one quarter mile or less at Times in the morning. Not as cool with Highs in the lower 80s. Southeast Winds 5 to 10 Mph with Gusts up to 20 Mph, becoming south around 15 Mph with Gusts up to 30 Mph in the afternoon.

Tonight 25 Jan South Central Duval

Mostly cloudy. Patchy fog. Lows in the mid 50s. Northeast Winds around 5 Mph.

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Fairfax Temperature Statistics

January Temperature

Jacksonville Naval Air Station (3.7 miles)

  • Lowest 16 January, 2026

    30.9 °F

  • Average January

    57 °F

  • Highest 10 January, 2026

    82 °F

Climate (2021–Present)

Jacksonville Naval Air Station (3.7 miles)

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  • Average Low 2021–2026

    65 °F

  • Average 2021–2026

    72.6 °F

  • Average High 2021–2026

    81.1 °F
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