Herndon Weather Forecast

    • 42
    • 45

    Dense Fog

    • 42
    • 50

    Dense Fog

    • 40
    • 50

    Patchy Fog

    • 41
    • 57

    Partly Sunny

    • 42
    • 57

    Partly Sunny

    • 43
    • 58

    Partly Sunny

    • 42
    • 58

    Partly Sunny

Today 5 Dec Fresno-Clovis

Partly sunny until late afternoon then clearing. Highs in the mid 40s. Light Winds.

Tonight 5 Dec Fresno-Clovis

Partly cloudy in the evening then becoming mostly cloudy. Patchy dense fog in the late evening and early morning. Widespread dense fog late in the night. Near steady temperature in the lower 40s. Light Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Herndon Temperature Statistics

December Temperature

Fresno Chandler Executive Airport (8.7 miles)

  • Lowest 2 December, 2025

    39.2 °F

  • Average December

    44.8 °F

  • Highest 1 December, 2025

    51.8 °F

Climate (2021–Present)

Fresno Chandler Executive Airport (8.7 miles)

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  • Average Low 2021–2025

    56.9 °F

  • Average 2021–2025

    68.7 °F

  • Average High 2021–2025

    80.7 °F
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