In February, Joliet typically sees daytime highs of 1.8°C and overnight lows around -7.7°C. Compared to the annual average high of 15.3°C, February runs -13.6°C.
February in Joliet averages a daytime high of 1.8°C and an overnight low of -7.7°C.
February runs -13.6°C compared to Joliet's annual average high of 15.3°C, ranking #11 of 12 months by warmth.
Plan for daytime highs near 1.8°C and cooler evenings around -7.7°C.