ZombieRunner Halloween Marathon

San Jose, CA, USA · October 31, 2026
partly-cloudy-day54°·69° high·Light·Dry
9
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Race Day Weather

partly-cloudy-day
54°at start
70° high
Light
Dry

Warm afternoon, mild winds

Runners will face a temperature rise from 54°F at the start to a warm 70°F by finish. Winds will be light at 5 mph from the S, providing minimal impact. With humidity at 63%, a conservative start is advised to adjust for rising heat as the race progresses.

Race day forecast available in 144 days
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Race Info

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FAQ

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When is the 2026 ZombieRunner Halloween Marathon?

The 2026 ZombieRunner Halloween Marathon will be held on Saturday October 31, 2026.

What will the weather be like for the 2026 ZombieRunner Halloween Marathon?

The forecast calls for a high of 72°F and a low of 53°F with a 5% chance of rain.

Historical Weather

Based on 3 years of data
Avg Temp
71°F
L:56° H:71°
RunScore
8
Conditions
Rain Freq
0%
0 of 3 yrs
Wind11mph
Dew39°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults

2025 ZombieRunner Halloween Marathon

Clear conditions throughout the day.

2025
partly-cloudy-day
54°/71°-
8

2024 ZombieRunner Halloween Marathon

Partly cloudy throughout the day with early morning rain.

2024
partly-cloudy-day
57°/67°-
8

2023 ZombieRunner Halloween Marathon

Clear conditions throughout the day.

2023
clear-day
56°/74°-
9

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Free guidesMarathon Fueling Guide·Carb Loading Guide·Race Morning Guide·Race Day Gear Guide·Pacing Strategy Guide·Mental Strategy Guide

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