South Run Park Weather Forecast

    • 46
    • 61

    Rain Showers

    • 45
    • 55

    Slight Chance Rain Showers

    • 60
    • 75

    Rain Showers Likely

    • 49
    • 70

    Chance Rain Showers

    • 53
    • 71

    Mostly Sunny

    • 62
    • 79

    Partly Sunny

Today 5 Mar Fairfax

Areas of fog late this morning. Cloudy late this Morning, then partly sunny with isolated Showers and Thunderstorms this afternoon. Visibility one quarter mile or less at Times late this morning. Highs in the mid 60s. Southeast Winds around 5 Mph. Chance of rain 20 percent.

Tonight 5 Mar Fairfax

Mostly cloudy. Scattered Showers with isolated Thunderstorms in the Evening, then scattered Showers after midnight. Patchy fog in the evening. Areas of fog after midnight. Visibility one quarter mile or less at Times after midnight. Lows in the upper 40s. East Winds around 5 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

South Run Park Temperature Statistics

March Temperature

Fort Belvoir (5 miles)

  • Lowest 2 March, 2026

    31.1 °F

  • Average March

    39.1 °F

  • Highest 1 March, 2026

    57.9 °F

Climate (2021–Present)

Fort Belvoir (5 miles)

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  • Average Low 2021–2026

    47.6 °F

  • Average 2021–2026

    57.9 °F

  • Average High 2021–2026

    68.2 °F
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