In June, Boise typically sees daytime highs of 25.2°C and overnight lows around 8.9°C. Compared to the annual average high of 15.8°C, June runs +9.4°C.
June in Boise averages a daytime high of 25.2°C and an overnight low of 8.9°C.
June runs +9.4°C compared to Boise's annual average high of 15.8°C, ranking #3 of 12 months by warmth.
Plan for daytime highs near 25.2°C and cooler evenings around 8.9°C.