The highest day temperature in April 2026 was 81°F. The lowest night temperature was 29°F. The average values for day and night temperatures during April were 57.7°F и 46.3°F respectivly.

The average sea surface temperature in April 2026 for Evanston was 43.3°F. The maximum and minimum values were 37.2°F and 52.0°F respectively.

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

Precipitation total in April for Evanston is 1.2 in. It makes april one of the most rainy months of the year.

The average wind speed in April is 10.1 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 Evanston in April is 6.2 hours.