Norwalk Weather Forecast

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Last Updated: January 3, 2026

Norwalk, Connecticut experiences a humid continental climate, characterized by hot summers and cold winters.


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Summary

Summers are typically mild to warm with average temperatures ranging from the mid-70s to mid-80s Fahrenheit. Winters are cold, with temperatures averaging in the mid-30s to mid-40s Fahrenheit, and snowfall is common.

The city is situated along the Norwalk River and has several other smaller streams and ponds. The Norwalk River is a vital hydrological constituent, providing water resources for various purposes, including recreation and ecological purposes. It is also home to various aquatic species.

Outdoor recreation opportunities in Norwalk are abundant. The city boasts beautiful parks, such as Calf Pasture Beach, where visitors can enjoy swimming, beach volleyball, and picnicking. The Norwalk Islands offer boating and fishing opportunities, while the Norwalk River Valley Trail provides a scenic pathway for walking, jogging, and biking. Additionally, visitors can explore the numerous hiking trails and nature preserves in the surrounding area.

       

Weather Forecast

Norwalk receives approximately 1263mm of rain per year, with humidity levels near 78% and air temperatures averaging around 11°C. Norwalk has a plant hardyness factor of 7, meaning plants and agriculture in this region tend to thrive during the non-winter months.