In June, Slough typically sees daytime highs of 19.1°C and overnight lows around 9.9°C. Compared to the annual average high of 13.2°C, June runs +6.0°C.
June in Slough averages a daytime high of 19.1°C and an overnight low of 9.9°C.
June runs +6.0°C compared to Slough's annual average high of 13.2°C, ranking #3 of 12 months by warmth.
Plan for daytime highs near 19.1°C and cooler evenings around 9.9°C.