Check the weather forecast for Collinsville from .
The Mississippi River makes this area humid, though temperatures are generally moderate. Storms can occur at any time of the year. July and August are hottest and most humid, and January and February are cold, with occasional snow. Average temperatures range from 21°F in the winter to 90°F in the summer (-6°C to 32°C), but summer highs of 100°F and winter lows of 0°F are not uncommon (38°C and -18°C).
The Most Frequently Asked Travel Questions about Collinsville (Illinois)
Where To Stay & Best Hotels in Collinsville (Illinois) - updated May 2024
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Collinsville (Illinois) Travel Guide from Wikitravel. Many thanks to all Wikitravel contributors. Text is available under Creative Commons Attribution-ShareAlike 3.0, images are available under various licenses, see each image for details.
