Weather Forecast and Radar for Anna, Illinois

Weather in Anna, IL

Anna, Illinois, United States experiences moderate weather year-round with hot and humid summers and cold winters.

In the summer, the average temperature is around 24°C (75°F). In the hottest months, July and August, the average temperature is around 27°C (81°F). The humidity is usually high, with the average relative humidity around 70%. On hot days, the temperature can reach up to 30°C (86°F) and higher.

In the winter, the average temperature is around -3°C (26°F). In the coldest months, January and February, the average temperature is around -7°C (19°F). The humidity is usually low, with the average relative humidity around 40%. On cold days, the temperature can drop to -12°C (10°F) and lower.

Rainfall is relatively evenly distributed throughout the year, averaging around 750mm (30in). Snowfall is also relatively even, averaging around 70cm (27in).

Fast Facts About Anna, IL

As of 2020, the city population is 4149.

Major Cities Nearby Anna, IL

This map shows the current & 7-day weather forecast, weather alerts, and weather radar for Anna, Illinois.