In October, Reston typically sees daytime highs of 20.1°C and overnight lows around 7.0°C. Compared to the annual average high of 18.8°C, October runs +1.3°C.
October in Reston averages a daytime high of 20.1°C and an overnight low of 7.0°C.
October runs +1.3°C compared to Reston's annual average high of 18.8°C, ranking #6 of 12 months by warmth.
Plan for daytime highs near 20.1°C and cooler evenings around 7.0°C.