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Weather along the Katy Trail

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  • Weather patterns tend to move west-to-east. If it's raining in Clinton today, it will probably rain in St Charles tomorrow
  • Most thunderstorms occur in June, but there are many in July and August too
  • May has the most rain, followed closely by April, June, and November
  • July and August are brutally hot
  • Fall foliage peaks around the middle of October, sometimes toward the end
  • Missouri weather can vary a lot from one day to the next

Electrical Storm Missouri River Valley
Photo: Steven Lee Wright

More Katy Trail weather resources:

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