In April, Great Falls typically sees daytime highs of 12.9°C and overnight lows around -1.6°C. Compared to the annual average high of 13.8°C, April runs -0.8°C.
April in Great Falls averages a daytime high of 12.9°C and an overnight low of -1.6°C.
April runs -0.8°C compared to Great Falls's annual average high of 13.8°C, ranking #7 of 12 months by warmth.
Plan for daytime highs near 12.9°C and cooler evenings around -1.6°C.