Historical Race Day Weather for the Tri-Cities Marathon

October 25, 2026

Race day snapshot

Partially cloudy

Start Line Conditions

Start Temp 43°F 6°C

Start Humidity 81% Humidity

Wind WNW 4 mph Wind

Race day high 55°F 13°C

Race day low 41°F 5°C

PR Score 100.00 Normal score 0.00

Course Score 100.00 Course-only Score

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October 27, 2019

Race day snapshot

Partly Cloudy

Start Line Conditions

Start Temp 34°F 1°C

Start Humidity 70% Humidity

Wind NNW 5 mph Wind

Race day high 55°F 13°C

Race day low 33°F 1°C

PR Score 99.19 Normal score 0.00

Course Score 99.19 Course-only Score

October 28, 2018

Race day snapshot

Partly Cloudy

Start Line Conditions

Start Temp 51°F 11°C

Start Humidity 90% Humidity

Wind SSE 5 mph Wind

Race day high 64°F 18°C

Race day low 50°F 10°C

PR Score 98.56 Normal score 0.00

Course Score 99.19 Course-only Score

October 29, 2017

Race day snapshot

Foggy

Start Line Conditions

Start Temp 35°F 2°C

Start Humidity 96% Humidity

Wind No Wind Wind

Race day high 61°F 16°C

Race day low 35°F 2°C

PR Score 99.19 Normal score 0.00

Course Score 99.19 Course-only Score

October 25, 2015

Race day snapshot

Mostly Clear

Start Line Conditions

Start Temp 41°F 5°C

Start Humidity 85% Humidity

Wind W 3 mph Wind

Race day high 58°F 14°C

Race day low 40°F 4°C

PR Score 99.19 Normal score 0.00

Course Score 99.19 Course-only Score

October 26, 2014

Race day snapshot

Partly Cloudy

Start Line Conditions

Start Temp 50°F 10°C

Start Humidity 63% Humidity

Wind SW 28 mph Wind

Race day high 63°F 17°C

Race day low 43°F 6°C

PR Score 99.19 Normal score 0.00

Course Score 99.19 Course-only Score

October 27, 2013

Race day snapshot

Clear

Start Line Conditions

Start Temp 46°F 8°C

Start Humidity 89% Humidity

Wind No Wind Wind

Race day high 51°F 11°C

Race day low 35°F 2°C

PR Score 99.19 Normal score 0.00

Course Score 99.19 Course-only Score

October 28, 2012

Race day snapshot

Clear

Start Line Conditions

Start Temp 44°F 7°C

Start Humidity 96% Humidity

Wind NNW 3 mph Wind

Race day high 65°F 18°C

Race day low 42°F 6°C

PR Score 99.19 Normal score 0.00

Course Score 99.19 Course-only Score

October 30, 2011

Race day snapshot

Clear

Start Line Conditions

Start Temp 33°F 1°C

Start Humidity 92% Humidity

Wind No Wind Wind

Race day high 64°F 18°C

Race day low 30°F -1°C

PR Score 99.19 Normal score 0.00

Course Score 99.19 Course-only Score

October 31, 2010

Race day snapshot

Clear

Start Line Conditions

Start Temp 48°F 9°C

Start Humidity 93% Humidity

Wind SSW 10 mph Wind

Race day high 62°F 17°C

Race day low 46°F 8°C

PR Score 99.19 Normal score 0.00

Course Score 99.19 Course-only Score