In June, Reston typically sees daytime highs of 28.4°C and overnight lows around 15.6°C. Compared to the annual average high of 18.8°C, June runs +9.6°C.
June in Reston averages a daytime high of 28.4°C and an overnight low of 15.6°C.
June runs +9.6°C compared to Reston's annual average high of 18.8°C, ranking #3 of 12 months by warmth.
Plan for daytime highs near 28.4°C and cooler evenings around 15.6°C.