Herndon Weather Forecast

    • 51
    • 62

    Cloudy

    • 56
    • 61

    Rain Showers

    • 52
    • 58

    Rain

    • 49
    • 54

    Rain Showers

    • 42
    • 52

    Rain Showers

    • 39
    • 49

    Slight Chance Rain

Today 22 Dec Fresno-Clovis

Mostly cloudy. Highs in the lower 60s. Southeast Winds up to 5 Mph.

Tonight 22 Dec Fresno-Clovis

Cloudy. Lows in the lower 50s. Southeast Winds up to 5 Mph.

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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

    44.3 °F

  • Highest 19 December, 2025

    55.4 °F

Climate (2021–Present)

Fresno Chandler Executive Airport (8.7 miles)

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  • Average Low 2021–2025

    56.4 °F

  • Average 2021–2025

    68 °F

  • Average High 2021–2025

    79.7 °F
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