Weather Forecast and Radar for Decorah, Iowa

Weather in Decorah, IA

Decorah, Iowa, United States has four distinct seasons, each providing its own unique weather conditions.

In the winter, temperatures can dip as low as -15°F, although the average winter temperature is around 20°F. Snowfall is common and the area can receive over 60 inches of snow in a year.

In the spring, temperatures can range from 30°F to 70°F. April and May tend to be the wettest months, with an average of 3-4 inches of rain each month.

The summer months are usually hot and humid, with temperatures reaching into the 90s. Rainfall is moderate with an average of 4-5 inches per month.

In the fall, temperatures generally range from 40°F to 70°F. Rainfall is typically less than in the spring, and the area can receive up to 6 inches of snow in autumn months.

Overall, Decorah enjoys a mild climate with temperatures rarely going below -15°F or above 95°F.

Fast Facts About Decorah, IA

As of 2020, the city population is 7615.

Major Cities Nearby Decorah, IA

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