The highest day temperature in February 2026 was 66°F. The lowest night temperature was 7°F. The average values for day and night temperatures during February were 39.8°F и 24.7°F respectivly.

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

Precipitation total in February for Naperville is 0.4 in. It makes february one of the least rainy months of the year.

The average wind speed in February is 9.3 mph. It makes February one of the most windy months of the year for Naperville.

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 Naperville in February is 5.1 hours.