Weather Forecast and Radar for Washington, Illinois

Routes Running Nearby to Washington, Illinois

• The I-74 runs east-west about 10 miles south of Washington, IL.

Weather in Washington, IL

In Washington, the summers are long, warm, humid, and wet; the winters are freezing, snowy, and windy; and it is partly cloudy year round. Over the course of the year, the temperature typically varies from 18°F to 85°F and is rarely below -0°F or above 92°F.

The warm season lasts for 4.0 months, from May 21 to September 22, with an average daily high temperature above 74°F. The hottest month of the year in Washington is July, with an average high of 84°F and low of 66°F.

The cold season lasts for 3.0 months, from December 1 to March 1, with an average daily high temperature below 43°F. The coldest month of the year in Washington is January, with an average low of 19°F and high of 33°F.

A total of 91 historical tornado events that had recorded magnitude of 2 or above found in or near Washington, IL.

Washington County, IL is in a very low risk hurricane zone. 18 hurricanes have been recorded in the Washington County, IL since 1930. The largest hurricane was Ike in 2008. The most recent Washington County, IL hurricane was Bill in 2015.

Fast Facts About Washington, IL

The city was incorporated in 1857.

As of 2020, the city population is 16,071.

Major Cities Nearby Washington, IL

• Chicago, Illinois (roughly 114 miles to the northeast)

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