Lake Chabot Trail Marathon

Castro Valley, CA, USA · November 7, 2026

55°·67° high·Light·Dry

Weather

Race Day Weather

55°at start

67° high

Light

Dry

Comfortable temps, warming through the race

Mild 55°F temps at gun time mean comfortable early miles without overheating risk. Temperatures rising to 67°F through the course will gradually increase perceived effort in the second half. Light winds shouldn't be a major factor for pacing.

Race day forecast available in 43 days

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Distance: 26.2mi

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Race Info

The course starts at the Marina and travels around the popular Lake Chabot reservoir and surrounding hills. Great course for first-time trail runners! Source

Website

Course Map

FAQ

When is the 2026 Lake Chabot Trail Marathon?

The 2026 Lake Chabot Trail Marathon will be held on Saturday November 7, 2026.

What is the time limit for the Lake Chabot Trail Marathon?

The time limit for the Lake Chabot Trail Marathon is 8.5 hours.

What will the weather be like for the 2026 Lake Chabot Trail Marathon?

The forecast calls for a high of 69°F and a low of 50°F with a 3% chance of rain.

Historical Weather

Based on 3 years of data

Avg Temp

62°F

L:57° H:69°

RunScore

Conditions

Rain Freq

0 of 3 yrs

Wind9mph

Dew50°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

Year	Low / High	Rain	Dew Point
2025 Lake Chabot Trail Marathon Clear conditions throughout the day. 2025	59°/74°	-	54°
2024 Lake Chabot Trail Marathon Clear conditions throughout the day. 2024	52°/61°	-	32°
2023 Lake Chabot Trail Marathon Partly cloudy throughout the day. 2023	61°/72°	-	60°

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