The highest day temperature in March 2026 was 67°F. The lowest night temperature was 16°F. The average values for day and night temperatures during March were 42.5°F и 36.7°F respectivly.

The average sea surface temperature in March 2026 for Chicago was 35.1°F. The maximum and minimum values were 31.2°F and 38.4°F respectively.

Most of the days in March are gloomy but you can also expect sunny days.

Precipitation total in March for Chicago is 1.8 in.

The average wind speed in March is 11.4 mph.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Chicago in March is 5.9 hours.