Weather in Oswego, Illinois as of 18 August, 2025. Temperature, rain and forecast for this week.

The following widget shows the weather in Oswego, Illinois as of 18 August, 2025. Click on the widget to open the weather forecast for Oswego. Please note: the weather in Oswego may change in any second, so make your decisions wisely and follow the news.

OSWEGO WEATHER

Add this page to favorites so you can stay updated about the actual weather in Oswego, Illinois.

Good weather and PEACE to everyone!

Check out more data on weather in Illinois:

• Weather in Aurora
• Weather in Joliet
• Weather in Bloomington
• Weather in Evanston
• Weather in Bolingbrook
• Weather in Des Plaines
• Weather in Tinley Park
• Weather in Plainfield
• Weather in Belleville
• Weather in Carol Stream
• Weather in Wheeling
• Weather in Glendale Heights
• Weather in Gurnee
• Weather in Lake in the Hills
• Weather in Wilmette
• Weather in Chicago Heights
• Weather in Woodstock