ZombieRunner Halloween Marathon
San Jose, CA, USA · October 31, 2026
Race Day Weather
54°at start
70° high
Light
Dry
Comfortable temps, big temp swing
Mild 54°F temps at gun time mean comfortable early miles without overheating risk. Temps will climb significantly to 70°F by later miles, so expect fading conditions as the race progresses. Moderate humidity at 66% is worth noting for effort level, especially in later miles.
Race day forecast available in 124 days
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