Herndon Weather Forecast

    • 46
    • 61

    Mostly Cloudy

    • 47
    • 67

    Mostly Cloudy

    • 51
    • 69

    Slight Chance Rain Showers

    • 53
    • 72

    Chance Rain Showers

    • 49
    • 72

    Chance Rain Showers

    • 41
    • 67

    Slight Chance Rain Showers

Today 4 Apr Eastern Loudoun

Mostly cloudy. Highs in the lower 60s. North Winds 5 to 10 Mph.

Tonight 4 Apr Eastern Loudoun

Mostly cloudy. Lows in the mid 40s. East Winds around 5 Mph, becoming south after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Herndon Temperature Statistics

April Temperature

Washington/Dulles International Airport, DC (4.3 miles)

  • Lowest 1 April, 2020

    39.9 °F
  • Average April

    46.2 °F
  • Highest 1 April, 2020

    55 °F

Climate (2010–Present)

Washington/Dulles International Airport, DC (4.3 miles)

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  • Average Low 2010–Present

    47 °F
  • Average 2010–Present

    56.3 °F
  • Average High 2010–Present

    65.7 °F
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