ZombieRunner Halloween Marathon
San Jose, CA, USA · October 31, 2026
Race Day Weather
54°at start
70° high
Light
Dry
Mild start, warming trend
Runners will face a temperature increase from 54°F at the start to a peak of 70°F. With a light breeze from the S, wind will have minimal impact. Humidity at 63% suggests a moderate feel, so pacing adjustments may be necessary as temperatures rise. Staying hydrated early will be crucial.
Race day forecast available in 47 days
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