Herndon Weather Forecast

    • 58
    • 70

    Slight Chance Rain Showers

    • 60
    • 70

    Mostly Cloudy

    • 56
    • 72

    Slight Chance Rain Showers

    • 57
    • 72

    Mostly Cloudy

    • 22
    • 66

    Rain Showers Likely

    • 16
    • 32

    Mostly Sunny

Today 24 Dec Christian

Patchy dense fog this morning. Cloudy with patchy drizzle. Highs in the upper 60s. South Winds around 5 Mph.

Tonight 24 Dec Christian

Mostly cloudy. Lows in the upper 50s. Southwest Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Herndon Temperature Statistics

December Temperature

Fort Campbell U. S. Army Airfield (5.6 miles)

  • Lowest 15 December, 2025

    9.7 °F

  • Average December

    37.3 °F

  • Highest 20 December, 2025

    63.7 °F

Climate (2020–Present)

Fort Campbell U. S. Army Airfield (5.6 miles)

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  • Average Low 2020–2025

    50.6 °F

  • Average 2020–2025

    60.1 °F

  • Average High 2020–2025

    69.8 °F
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