Cambridge Half Marathon

Cambridge, MA, USA · November 1, 2026
partly-cloudy-day51°·57° high·Breezy·Dry
8
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Race Day Weather

partly-cloudy-day
51°at start
57° high
Breezy
Dry

Cool start, steady winds ahead

Runners will face a cool start at 51°F, warming to 57°F by the finish. With a steady 12 mph WSW wind and 69% humidity, pacing adjustments may be necessary. To maintain performance, runners should consider a conservative start and stay hydrated, especially if the humidity feels high.

Race day forecast available in 51 days
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Pace Calculator

Distance: 13.1mi
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Race Plan

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Weather-adjusted pacing, per-mile terrain splits, fueling timeline with aid stations, packing checklist, carb tracker, spectator guide — all personalized to your goal and race-day conditions.

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Carb Tracker
Spectator Guide
Race Band

Race Info

The Cambridge Half Marathon is a USATF-certified 13.1-mile race that starts and finishes at CambridgeSide mall in Cambridge, Massachusetts. Held in early November alongside a companion 5K the day before, the course runs along Memorial Drive with views of the Charles River, MIT, and Harvard Stadium. The race has run annually since at least 2019 and is organized as the CambridgeSide Charity Race Series, which has raised more than $1.7 million for local charities since 2017.

Area Map

Course Map

FAQ

When is the 2026 Cambridge Half Marathon?

The 2026 Cambridge Half Marathon will be held on Sunday November 1, 2026.

What will the weather be like for the 2026 Cambridge Half Marathon?

The forecast calls for a high of 57°F and a low of 46°F with a 10% chance of rain.

Historical Weather

Based on 6 years of data
Avg Temp
57°F
L:45° H:58°
RunScore
8
Conditions
Rain Freq
0%
0 of 6 yrs
Wind11mph
Dew35°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults
2025
partly-cloudy-day
39°/53°-
7
2024
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37°/46°-
8
2023
partly-cloudy-day
47°/60°-
9
2022
partly-cloudy-day
66°/76°-
6
2021
partly-cloudy-day
35°/54°-
8
2019
partly-cloudy-day
43°/56°-
8