Idaho Running Day 5K

Boise, ID, USA · October 16, 2027·
partly-cloudy-day50°·56° high·Light·Dry
10
Register

Race Day Weather

partly-cloudy-day
50°at start
67° high
Light
Dry
Your goal
0:00:00

Comfortable temps, big temp swing

Mild 50°F temps at gun time mean comfortable early miles without overheating risk. Temps will climb significantly to 67°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 337 days
partly-cloudy-night10
partly-cloudy-day10
partly-cloudy-day10
partly-cloudy-day10
partly-cloudy-day9
partly-cloudy-day8
partly-cloudy-day8
partly-cloudy-day7
partly-cloudy-day7
partly-cloudy-day7
partly-cloudy-day7

Pace Calculator

3.1mi
0:00:00
HH:MM:SS
Pace
—

Enter a finish time to see what race day does to it.

Common Goals:

Get forecast alerts for Idaho Running Day 5K

We'll text or email you when the forecast shifts — so you can adjust gear, pacing, and strategy. Max one per day.

Race Plan

Get your personalized Idaho Running Day 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 Idaho Running Day 5K is a short out and back on the Boise River Greenbelt. It starts and finishes at Sandy Point in Lucky Peak State Park, below Lucky Peak Dam, and follows the river west to a turnaround about halfway before returning to the finish. The route covers the first stretch of the same path the longer races use.

Race weekend

Saturday, October 16
8:00 AMMarathon (26.2 mi)8:00 AMHalf Marathon (13.1 mi)9:00 AM10K (6.2 mi)
9:00 AM5K (3.1 mi)

FAQ

When is the 2027 Idaho Running Day 5K?

The 2027 Idaho Running Day 5K will be held on Saturday October 16, 2027.

What is the time limit for the Idaho Running Day 5K?

The time limit for the Idaho Running Day 5K is 6 hours.

What will the weather be like for the 2027 Idaho Running Day 5K?

The forecast calls for a high of 68°F and a low of 44°F with a 6% chance of rain. Check our detailed hourly forecast above for the best 5K race plan.

Historical Weather

Based on 5 years of data
Avg Temp
58°F
L:56° H:61°
RunScore
8
Conditions
Rain Freq
0%
0 of 5 yrs
Wind5mph
Dew37°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults
2026
clear-day
53°/54°-
10
2025
clear-day
39°/43°-
10
2024
clear-day
69°/74°-
6
2023
clear-day
61°/69°-
7
2022
clear-day
57°/63°-
8