In March, Arlington Heights typically sees daytime highs of 6.3°C and overnight lows around -2.6°C. Compared to the annual average high of 14.3°C, March runs -7.9°C.
March in Arlington Heights averages a daytime high of 6.3°C and an overnight low of -2.6°C.
March runs -7.9°C compared to Arlington Heights's annual average high of 14.3°C, ranking #9 of 12 months by warmth.
Plan for daytime highs near 6.3°C and cooler evenings around -2.6°C.