What is the weather usually like on race day for the Boise River Marathon?

Based on the last 10 years of weather data for Boise, ID, May race mornings typically start near 44°F and warm to around 69°F. On this calendar date it has rained in 1 of the last 10 years.

← Races in Boise, ID

Boise River Marathon

Sun, May 2, 2027

In 178 days

Boise, ID

Treasure Valley

Typically 44–69°F · low rain risk

See last 10 years

On this date: rain 1 of the last 10 years

2026

47–80°F

dry

2025

47–79°F

dry

2024

41–55°F

dry

2023

49–82°F

dry

2022

43–67°F

rain

2021

47–64°F

dry

2020

45–78°F

dry

2019

42–66°F

dry

2018

38–67°F

dry

2017

45–62°F

dry

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About this race

Boise River Marathon takes place on May 2, 2027 in Boise, ID. Visit the race website for full event details.

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Train with a club

Run clubs near Boise to train with before race day.

Boise Area Runners

Boise, ID

208 Run Club

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Boise Run Club

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Running for the High of It

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