The 2026 Boston 5K has concluded.

Boston 5K

Race complete
Boston, MA, USA · April 18, 2026
cloudy49°·50° high·Breezy·Dry
8
Weather
Pace Calc
Course
FAQ
History

Race Day Weather

cloudy
49°at start
50° high
Breezy
Dry

Cool conditions, steady wind

Runners will face a cool start with temperatures ranging from 48°F to 50°F. A steady wind from the NE at 13 mph will add a slight chill, especially with high humidity at 96%. Given the conditions, pacing should remain conservative to maintain energy throughout the race.

cloudy9
cloudy8
cloudy7
cloudy7
cloudy7
cloudy7

Pace Calculator

Distance: 3.1mi
0:00:00
HH:MM:SS
Pace
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Weather Adj.
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Race Info

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FAQ

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When is the 2026 Boston 5K?

The 2026 Boston 5K will be held on Saturday April 18, 2026.

What is the time limit for the Boston 5K?

The time limit for the Boston 5K is 1 hours.

What will the weather be like for the 2026 Boston 5K?

The forecast calls for a high of 50°F and a low of 44°F with a 0% chance of rain.

Historical Weather

Based on 2 years of data
Avg Temp
52°F
L:51° H:52°
RunScore
8
Conditions
Rain Freq
0%
0 of 2 yrs
Wind11mph
Dew46°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScore

2024 Boston 5K

Partly cloudy throughout the day with afternoon rain.

2024
partly-cloudy-day
52°/53°-
8

2023 Boston 5K

Cloudy skies throughout the day.

2023
cloudy
50°/51°-
8

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Free guidesRace Morning Guide·Race Day Gear Guide·Pacing Strategy Guide

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