South Run Park Weather Forecast

    • 43
    • 73

    Rain Showers

    • 41
    • 63

    Mostly Sunny

    • 31
    • 53

    Mostly Sunny

    • 37
    • 55

    Mostly Sunny

    • 47
    • 68

    Partly Sunny

    • 49
    • 73

    Mostly Sunny

Today 5 Apr Fairfax

Showers with a slight chance of Thunderstorms. Highs in the lower 70s. Southwest Winds 10 to 15 Mph, becoming west in the afternoon. Gusts up to 30 Mph. Chance of rain near 100 percent.

Tonight 5 Apr Fairfax

Partly cloudy in the Evening, then clearing. Cooler with Lows in the lower 40s. Northwest Winds 5 to 10 Mph with Gusts up to 20 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

South Run Park Temperature Statistics

April Temperature

Fort Belvoir (5 miles)

  • Lowest 2 April, 2026

    48.4 °F

  • Average April

    64.4 °F

  • Highest 1 April, 2026

    88.5 °F

Climate (2021–Present)

Fort Belvoir (5 miles)

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  • Average Low 2021–2026

    47.6 °F

  • Average 2021–2026

    58 °F

  • Average High 2021–2026

    68.3 °F
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