In 93 days · Sat, Oct 31, 2026
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When
Saturday, October 31st, 2026
Where
100 CambridgeSide Place, Cambridge MA
Distances
Half · 5K
Typical weather
44–58°F · some rain risk
See last 10 years
On this date: rain 3 of the last 10 years
2025
49–59°F
rain
2024
56–76°F
dry
2023
37–47°F
dry
2022
42–66°F
dry
2021
55–66°F
rain
2020
25–38°F
dry
2019
58–69°F
rain
2018
32–54°F
dry
2017
45–57°F
dry
2016
40–51°F
dry
Best months to race in Massachusetts →
About this race
Event Overview
- Date: 2026-10-31
- Location: 100 CambridgeSide Place, Cambridge, MA
- Race URL: Cambridge Half Marathon + 5K
Race Descriptions
Cambridge 5K
- Distance: 3.1 miles
- Course Type: Out and back
- Starting Point: CambridgeSide
- Sights: Stunning views of the Boston skyline
Cambridge Half Marathon
- Distance: 13.1 miles
- Certification: USATF certified course
- Course Features: Fast and flat along Memorial Drive
- Highlights: Views of the Charles River, MIT, John W. Weeks Footbridge, Harvard University Stadium, and more
Course map
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