Boulder Underground
04/25/2026
“With a late-ish start time, the weather will be noticeably warmer at the finish line. We’ll give the temps a B-, so the cloud cover and humidity will be major factors on race day performance… As far as London standards, Saturday morning will be bone dry, and Sunday’s dew points won’t bother you too much.”
Connor Lewis ()
• Meteorologists
• Boulder Underground Athlete
• BU Coach Matt Hensley
Learn more about the London forecast and our new project - BU Marathoncast - with our race meteorologist, Connor Lewis, at the link in our bio.
06/21/2025
Saddle up for your weekend long run!
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