Fairfax Weather Forecast

    • 67
    • 85

    Slight Chance Thunderstorms

    • 67
    • 83

    Chance Thunderstorms

    • 63
    • 74

    Partly Sunny

    • 66
    • 82

    Partly Sunny

    • 68
    • 86

    Slight Chance Thunderstorms

    • 66
    • 86

    Slight Chance Thunderstorms

Today 25 Apr South Central Duval

Mostly sunny. A chance of Showers with a slight chance of Thunderstorms this afternoon. Highs in the upper 80s. Southwest Winds 5 to 10 Mph. Chance of rain 30 percent.

Tonight 25 Apr South Central Duval

Mostly cloudy in the Evening, then becoming partly cloudy. A slight chance of Thunderstorms in the evening. A slight chance of Showers. Lows in the mid 60s. South Winds 5 to 10 Mph, becoming southwest after midnight. Chance of rain 20 percent.

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Fairfax Temperature Statistics

April Temperature

Jacksonville Naval Air Station (3.7 miles)

  • Lowest 11 April, 2026

    61 °F

  • Average April

    70.9 °F

  • Highest 18 April, 2026

    89.1 °F

Climate (2021–Present)

Jacksonville Naval Air Station (3.7 miles)

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  • Average Low 2021–2026

    64.9 °F

  • Average 2021–2026

    72.6 °F

  • Average High 2021–2026

    81.1 °F
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