In July, Slough typically sees daytime highs of 20.7°C and overnight lows around 11.9°C. Compared to the annual average high of 13.2°C, July runs +7.5°C.
July in Slough averages a daytime high of 20.7°C and an overnight low of 11.9°C.
July runs +7.5°C compared to Slough's annual average high of 13.2°C, ranking #1 of 12 months by warmth.
Plan for daytime highs near 20.7°C and cooler evenings around 11.9°C.