The 2026 Montana 5K has concluded.Share your finish

Montana 5K

Race complete
Billings, MT, USA · September 20, 2026·
rain52°·54° high·Breezy·Light rain
8
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Race Day Weather

rain
52°at start
61° high
Breezy
Light rain
Your goal
0:00:00

Comfortable temps, moderate wind, rain likely

Mild 52°F temps at gun time mean comfortable early miles without overheating risk. Temperatures rising to 61°F through the course will gradually increase perceived effort in the second half. Moderate winds around 14mph may affect pacing on open sections of the course. Rain is likely — waterproof your phone and bib, and consider a disposable poncho for the corral. High humidity (90%) will make it harder to cool down through sweat — increase fluid intake accordingly.

rain10
cloudy10
rain9
rain8
rain8
rain7
partly-cloudy-day7
partly-cloudy-day6
partly-cloudy-day6
partly-cloudy-day6

Pace Calculator

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

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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 Montana 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 Montana Marathon 5K is a point-to-point race that starts at Rose Park in Billings and finishes at Pioneer Park in downtown Billings. The route runs north to Colton Boulevard, then east along Colton Boulevard and Parkhill Drive on a course with a small net drop. It shares the Pioneer Park finish with the longer races and is run on the Sunday of race weekend.

Race weekend

Sunday, September 20
7:00 AMMarathon (26.2 mi)8:00 AMHalf Marathon (13.1 mi)9:15 AM10K (6.2 mi)
9:30 AM5K (3.1 mi)

FAQ

When is the 2026 Montana 5K?

The 2026 Montana 5K will be held on Sunday September 20, 2026.

What is the time limit for the Montana 5K?

The time limit for the Montana 5K is 4 hours.

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

The forecast calls for a high of 62°F and a low of 52°F with a 100% chance of rain. Check our detailed hourly forecast above for the best 5K race plan.

Historical Weather

Based on 13 years of data
Avg Temp
58°F
L:57° H:60°
RunScore
8
Conditions
Rain Freq
8%
1 of 13 yrs
Wind9mph
Dew42°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults
2026
rain
52°/54°Light
8
2025
partly-cloudy-day
74°/78°-
4
2024
partly-cloudy-day
49°/51°-
10
2023
partly-cloudy-day
61°/66°-
6
2022
partly-cloudy-day
42°/47°-
9
2021
partly-cloudy-day
58°/59°-
10
2020
partly-cloudy-day
57°/62°-
9
2019
partly-cloudy-day
68°/72°-
6
2018
clear-day
56°/59°-
8
2017
partly-cloudy-day
43°/46°-
10
2016
partly-cloudy-day
68°/71°-
6
2015
partly-cloudy-day
56°/64°-
9
2014
clear-day
52°/55°-
10