Historical Race Day Weather for the Sioux Falls Marathon

September 20, 2026

Race day snapshot

Overcast

Start Line Conditions

Start Temp 57°F 14°C

Start Humidity 93% Humidity

Wind NE 13 mph Wind

Race day high 62°F 17°C

Race day low 57°F 14°C

PR Score 97.21 Normal score 98.09

Course Score 98.66 Course-only Score

Course-adjusted pacing

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September 21, 2025

Race day snapshot

Overcast

Start Line Conditions

Start Temp 54°F 12°C

Start Humidity 100% Humidity

Wind No Wind Wind

Race day high 78°F 26°C

Race day low 52°F 11°C

PR Score 95.93 Normal score 98.09

Course Score 98.66 Course-only Score

August 25, 2024

Race day snapshot

Overcast

Start Line Conditions

Start Temp 75°F 24°C

Start Humidity 92% Humidity

Wind SSE 7 mph Wind

Race day high 92°F 33°C

Race day low 72°F 22°C

PR Score 90.00 Normal score 98.09

Course Score 98.66 Course-only Score

August 27, 2023

Race day snapshot

Partially cloudy

Start Line Conditions

Start Temp 55°F 13°C

Start Humidity 96% Humidity

Wind ESE 3 mph Wind

Race day high 81°F 27°C

Race day low 54°F 12°C

PR Score 95.59 Normal score 98.09

Course Score 98.66 Course-only Score

August 28, 2022

Race day snapshot

Partly Cloudy

Start Line Conditions

Start Temp 66°F 19°C

Start Humidity 99% Humidity

Wind SSE 11 mph Wind

Race day high 91°F 33°C

Race day low 65°F 18°C

PR Score 92.85 Normal score 98.09

Course Score 98.66 Course-only Score

September 8, 2019

Race day snapshot

Possible Light Rain

Start Line Conditions

Start Temp 54°F 12°C

Start Humidity 96% Humidity

Wind ESE 11 mph Wind

Race day high 63°F 17°C

Race day low 54°F 12°C

PR Score 97.70 Normal score 98.09

Course Score 98.80 Course-only Score

September 9, 2018

Race day snapshot

Partly Cloudy

Start Line Conditions

Start Temp 50°F 10°C

Start Humidity 92% Humidity

Wind SSE 8 mph Wind

Race day high 71°F 22°C

Race day low 50°F 10°C

PR Score 98.34 Normal score 98.09

Course Score 98.80 Course-only Score

September 10, 2017

Race day snapshot

Overcast

Start Line Conditions

Start Temp 66°F 19°C

Start Humidity 86% Humidity

Wind SSE 13 mph Wind

Race day high 83°F 28°C

Race day low 65°F 18°C

PR Score 95.09 Normal score 98.09

Course Score 98.80 Course-only Score

September 11, 2016

Race day snapshot

Clear

Start Line Conditions

Start Temp 54°F 12°C

Start Humidity 74% Humidity

Wind S 8 mph Wind

Race day high 79°F 26°C

Race day low 51°F 11°C

PR Score 98.76 Normal score 98.09

Course Score 98.80 Course-only Score

September 13, 2015

Race day snapshot

Clear

Start Line Conditions

Start Temp 51°F 11°C

Start Humidity 80% Humidity

Wind S 6 mph Wind

Race day high 77°F 25°C

Race day low 49°F 9°C

PR Score 98.80 Normal score 98.09

Course Score 98.80 Course-only Score

September 7, 2014

Race day snapshot

Clear

Start Line Conditions

Start Temp 51°F 11°C

Start Humidity 85% Humidity

Wind S 4 mph Wind

Race day high 77°F 25°C

Race day low 49°F 9°C

PR Score 99.07 Normal score 98.09

Course Score 99.07 Course-only Score

September 8, 2013

Race day snapshot

Mostly Cloudy

Start Line Conditions

Start Temp 67°F 19°C

Start Humidity 90% Humidity

Wind E 8 mph Wind

Race day high 84°F 29°C

Race day low 67°F 19°C

PR Score 94.76 Normal score 98.09

Course Score 99.07 Course-only Score

September 9, 2012

Race day snapshot

Clear

Start Line Conditions

Start Temp 45°F 7°C

Start Humidity 90% Humidity

Wind No Wind Wind

Race day high 76°F 24°C

Race day low 43°F 6°C

PR Score 99.07 Normal score 98.09

Course Score 99.07 Course-only Score