Weather in Alton, Illinois as of 06 August, 2025. Temperature, rain and forecast for this week.

The following widget shows the weather in Alton, Illinois as of 06 August, 2025. Click on the widget to open the weather forecast for Alton. Please note: the weather in Alton may change in any second, so make your decisions wisely and follow the news.

ALTON WEATHER

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Good weather and PEACE to everyone!

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