In March, Great Falls typically sees daytime highs of 6.3°C and overnight lows around -6.9°C. Compared to the annual average high of 13.8°C, March runs -7.4°C.
March in Great Falls averages a daytime high of 6.3°C and an overnight low of -6.9°C.
March runs -7.4°C compared to Great Falls's annual average high of 13.8°C, ranking #9 of 12 months by warmth.
Plan for daytime highs near 6.3°C and cooler evenings around -6.9°C.