Herndon Weather Forecast

    • 58
    • 89

    Mostly Sunny

    • 60
    • 92

    Mostly Sunny

    • 60
    • 94

    Mostly Sunny

    • 59
    • 93

    Mostly Cloudy

    • 60
    • 91

    Partly Sunny

    • 59
    • 92

    Mostly Sunny

Today 14 Aug Fresno-Clovis

Sunny. Highs around 90. West Winds up to 10 Mph.

Tonight 14 Aug Fresno-Clovis

Mostly clear. Lows in the lower 60s. Northwest Winds 5 to 10 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Herndon Temperature Statistics

August Temperature

Fresno Chandler Executive Airport (8.7 miles)

  • Lowest 4 August, 2026

    68 °F

  • Average August

    88.5 °F

  • Highest 9 August, 2026

    107.6 °F

Climate (2021–2026)

Fresno Chandler Executive Airport (8.7 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    55.9 °F

  • Average 2021–2026

    67.5 °F

  • Average High 2021–2026

    79.4 °F
Get WillyWeather+ to remove ads