With a population of around 24,600, Herndon sits in Virginia, United States. The city operates in the Eastern Time Zone.
Expect a humid continental climate in Herndon: average highs of 88°F in midsummer, lows near 25°F in midwinter, and an annual mean of 56°F. Precipitation totals roughly 43 inches per year and 21 inches of snow, concentrated around May, with February typically the driest month.
View historical weather for Herndon · More cities in Virginia