City of Trees 10K

Boise, ID, USA · October 10, 2027·
partly-cloudy-day49°·53° high·Light·Dry
10
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Race Day Weather

partly-cloudy-day
49°at start
66° high
Breezy
Dry
Your goal
0:00:00

Cool start — fast day potential, big temp swing

A cool 49°F at the start line is ideal for fast times — expect to warm up quickly once you're moving. Temps will climb significantly to 66°F by later miles, so expect fading conditions as the race progresses. Light winds shouldn't be a major factor for pacing.

Race day forecast available in 339 days
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Pace Calculator

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Race Info

The City of Trees 10K covers 6.2 miles and starts at 8:30 AM, after the marathon and half marathon, on the Sunday of race weekend. The race courses use the Boise Greenbelt system along the Boise River.

Race weekend

Sunday, October 10
8:00 AMMarathon (26.2 mi)8:00 AMHalf Marathon (13.1 mi)
8:30 AM10K (6.2 mi)
8:30 AM5K (3.1 mi)
Area Map

Course Map

FAQ

When is the 2027 City of Trees 10K?

The 2027 City of Trees 10K will be held on Sunday October 10, 2027.

What will the weather be like for the 2027 City of Trees 10K?

The forecast calls for a high of 71°F and a low of 47°F with a 2% chance of rain. Check our detailed hourly forecast above for the best 10K race plan.

Historical Weather

Based on 5 years of data
Avg Temp
49°F
L:48° H:50°
RunScore
10
Conditions
Rain Freq
0%
0 of 5 yrs
Wind8mph
Dew32°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults
2026
cloudy
45°/45°-
10
2025
clear-day
46°/47°-
10
2024
clear-day
51°/52°-
10
2023
cloudy
53°/56°-
10
2022
clear-day
47°/49°-
10