In April, Boise typically sees daytime highs of 15.2°C and overnight lows around 1.0°C. Compared to the annual average high of 15.8°C, April runs -0.6°C.
April in Boise averages a daytime high of 15.2°C and an overnight low of 1.0°C.
April runs -0.6°C compared to Boise's annual average high of 15.8°C, ranking #7 of 12 months by warmth.
Plan for daytime highs near 15.2°C and cooler evenings around 1.0°C.