Ann Arbor 5K

Ann Arbor, MI, USA · October 03, 2027·
partly-cloudy-day56°·59° high·Breezy·Dry
7
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Race Day Weather

partly-cloudy-day
56°at start
69° high
Breezy
Dry
Your goal
0:00:00

Comfortable temps, warming through the race

Mild 56°F temps at gun time mean comfortable early miles without overheating risk. Temperatures rising to 69°F through the course will gradually increase perceived effort in the second half. Light winds shouldn't be a major factor for pacing. Moderate humidity at 67% is worth noting for effort level, especially in later miles.

Race day forecast available in 322 days
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Pace Calculator

3.1mi
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Race Plan

Get your personalized Ann Arbor 5K race plan

A mile-by-mile breakdown of where your time goes, weather-adjusted splits, fueling timeline with aid stations, packing checklist, carb tracker, spectator guide, all built around your goal and race-day conditions.

Race Pace
Weather Splits
Nutrition
Gear & Packing
T-Minus
Carb Tracker
Spectator Guide
Race Band

Race Info

The Ann Arbor 5K covers 3.1 miles out and back from downtown Ann Arbor. It heads south and east toward the University of Michigan campus, turns around on the east side of central campus, and returns the same way to the downtown finish. It is the shortest and flattest course of the weekend, with one gentle rise through the middle mile.

Race weekend

Sunday, October 3
8:00 AMMarathon (26.2 mi)8:00 AMHalf Marathon (13.1 mi)
8:00 AMMarathon Relay (26.2 mi)
9:00 AM10K (6.2 mi)
9:15 AM5K (3.1 mi)

FAQ

When is the 2027 Ann Arbor 5K?

The 2027 Ann Arbor 5K will be held on Sunday October 3, 2027.

What will the weather be like for the 2027 Ann Arbor 5K?

The forecast calls for a high of 69°F and a low of 52°F with a 9% chance of rain. Check our detailed hourly forecast above for the best 5K race plan.

Historical Weather

Based on 14 years of data
Avg Temp
48°F
L:47° H:50°
RunScore
8
Conditions
Rain Freq
14%
2 of 14 yrs
Wind6mph
Dew42°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults
2026
partly-cloudy-day
51°/56°Light
9
2025
fog
49°/52°-
9
2024
rain
50°/50°Light
10
2023
clear-day
58°/66°-
6
2022
partly-cloudy-day
56°/57°-
8
2021
clear-day
33°/40°-
10
2019
partly-cloudy-day
33°/38°-
10
2018
cloudy
58°/58°-
7
2017
cloudy
40°/41°-
10
2016
cloudy
26°/27°-
10
2015
clear-day
26°/31°-
9
2014
clear-day
30°/35°-
10
2013
partly-cloudy-day
66°/67°-
5
2012
partly-cloudy-day
74°/76°-
4