The 2026 Tri-Cities Marathon has concluded.2026 Results

Tri-Cities Marathon

Race complete

Richland, WA, USA · October 25, 2026

37°·48° high·Calm·Dry

Race Day Weather

37°at start

56° high

Breezy

Dry

Your goal

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to see the forecast where you'll be

Cool start, gradual warm-up

Runners will face a cool start at 37°F, rising to 56°F by the finish. Winds will be light at 8 mph from the E, with average humidity at 66%. Athletes should consider pacing conservatively early on and stay hydrated as temperatures rise.

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Distance: 26.2mi

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Race Info

Website

Race weekend

Sunday, October 25

7:30 AMMarathon (26.2 mi)

Relay (26.2 mi)

Half Marathon (13.1 mi)

5K (3.1 mi)

Course Map

FAQ

When is the 2026 Tri-Cities Marathon?

The 2026 Tri-Cities Marathon will be held on Sunday October 25, 2026.

What will the weather be like for the 2026 Tri-Cities Marathon?

The forecast calls for a high of 56°F and a low of 37°F with a 0% chance of rain.

Historical Weather

Based on 2 years of data

Avg Temp

36°F

L:29° H:43°

RunScore

Conditions

Rain Freq

0 of 2 yrs

Wind1mph

Dew31°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

Year	Conditions	Low / High	Rain	Dew Point	Score
2026 Tri-Cities Marathon Clear conditions throughout the day. 2026		37°/48°	-	37°
2023 Tri-Cities Marathon Clear conditions throughout the day. 2023		22°/38°	-	25°

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