White River Half Marathon

Cotter, AR, USA · November 21, 2026·
partly-cloudy-day45°·49° high·Light·Dry
10
Register

Race Day Weather

partly-cloudy-day
45°at start
57° high
Light
Dry
Your goal
0:00:00

Cool start — fast day potential, warming through the race

A cool 45°F at the start line is ideal for fast times — expect to warm up quickly once you're moving. Temperatures rising to 57°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 29 days
partly-cloudy-night10
partly-cloudy-night10
partly-cloudy-day10
partly-cloudy-day10
partly-cloudy-day10
partly-cloudy-day10
partly-cloudy-day10
partly-cloudy-day10
partly-cloudy-day9
partly-cloudy-day9
partly-cloudy-day9
partly-cloudy-day10

Pace Calculator

13.1mi
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 White River Half Marathon

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 White River Half Marathon 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 White River Half Marathon starts at Cotter Schools and drops downhill for the first mile before turning onto an out-and-back course along the White River. Runners turn around near the 6-mile mark and return most of the way back before finishing at Big Spring Park, so the start and finish are in different places. The final two miles run on a compacted and fine gravel pathway and the rest of the route is asphalt. The course is USATF-certified, flat and mostly downhill overall.

Race weekend

Saturday, November 21
7:00 AMMarathon (26.2 mi)
7:00 AMHalf Marathon (13.1 mi)
7:00 AM5K (3.1 mi)
Area Map

Course Map

FAQ

When is the 2026 White River Half Marathon?

The 2026 White River Half Marathon will be held on Saturday November 21, 2026.

What is the time limit for the White River Half Marathon?

The time limit for the White River Half Marathon is 7 hours.

What will the weather be like for the 2026 White River Half Marathon?

The forecast calls for a high of 58°F and a low of 40°F with a 8% chance of rain. Check our detailed hourly forecast above for the best half marathon race plan.

Historical Weather

Based on 16 years of data
Avg Temp
43°F
L:40° H:46°
RunScore
9
Conditions
Rain Freq
13%
2 of 16 yrs
Wind5mph
Dew36°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults
2025
partly-cloudy-day
54°/54°-
9
2024
fog
30°/38°-
10
2023
clear-day
35°/46°-
10
2022
partly-cloudy-day
25°/31°-
10
2021
partly-cloudy-day
41°/46°-
10
2020
cloudy
56°/58°-
7
2019
rain
39°/41°Light
10
2018
clear-day
32°/43°-
10
2017
clear-day
71°/74°-
4
2016
clear-day
34°/37°-
10
2015
snow
21°/42°Light
10
2014
cloudy
45°/55°-
10
2013
cloudy
34°/36°-
10
2012
clear-day
29°/40°-
10
2011
partly-cloudy-day
52°/54°-
10
2010
cloudy
35°/41°-
10