Knoxville Marathon

Knoxville, TN, USA • April 12, 2026

Race Day Weather

50°

71° high

Breezy

Dry

Cool start, warming trend

Runners will face a starting temperature of 50°F, rising to 69°F by the finish. Wind will be light at 8 mph from the S, with gusts up to 28 mph. With humidity at 61%, pacing adjustments may be necessary as temperatures rise, especially after the halfway mark.

Race day forecast available in 8 days

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Pre-raceRace windowPost-race

Pace Calculator

Distance: 26.2mi

Target Finish Time

0:00:00

HH:MM:SS

Pace

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Weather Adj.

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Common Goals:

Course Map

FAQ

When is the 2026 Knoxville Marathon?

The 2026 Knoxville Marathon will be held on Sunday April 12, 2026.

Is the Knoxville Marathon a Boston Marathon Qualifier?

Yes, the Knoxville Marathon is an official Boston Marathon qualifier.

What will the weather be like for the 2026 Knoxville Marathon?

The forecast calls for a high of 71°F and a low of 50°F with a 0% chance of rain. Check our detailed hourly forecast above for the best marathon race plan.

Historical Weather

Based on 19 years of data

Avg Temp

60°F

L:45° H:61°

RunScore

Conditions

Rain Freq

16%

3 of 19 yrs

Wind7mph

Dew41°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

Year	Low / High	Rain	Dew Point
2025 Knoxville Marathon Partly cloudy throughout the day with a chance of rain throughout the day. 2025	61°/64°	Light	61°
2024 Knoxville Marathon Clear conditions throughout the day. 2024	40°/66°	-	36°
2023 Knoxville Marathon Clear conditions throughout the day. 2023	38°/59°	-	34°
2021 Knoxville Marathon Partly cloudy throughout the day. 2021	66°/80°	-	66°
2019 Knoxville Marathon Clear conditions throughout the day with rain clearing later. 2019	41°/48°	-	31°
2018 Knoxville Marathon Cloudy skies throughout the day with early morning rain. 2018	44°/57°	-	43°
2017 Knoxville Marathon Clear conditions throughout the day. 2017	46°/71°	-	45°
2016 Knoxville Marathon Clear conditions throughout the day. 2016	39°/53°	-	19°
2015 Knoxville Marathon Clear conditions throughout the day. 2015	26°/51°	-	18°
2014 Knoxville Marathon Clearing in the afternoon with early morning rain. 2014	37°/53°	-	30°
2013 Knoxville Marathon Partly cloudy throughout the day. 2013	52°/70°	-	42°
2012 Knoxville Marathon Partly cloudy throughout the day with afternoon rain. 2012	52°/73°	-	56°
2011 Knoxville Marathon Clear conditions throughout the day. 2011	38°/73°	-	35°
2010 Knoxville Marathon Partly cloudy throughout the day with rain. 2010	53°/60°	Light	48°
2009 Knoxville Marathon Cloudy skies throughout the day with early morning rain. 2009	44°/46°	-	34°
2008 Knoxville Marathon Cloudy skies throughout the day with early morning rain. 2008	49°/57°	-	46°
2007 Knoxville Marathon Partly cloudy throughout the day with a chance of rain throughout the day. 2007	64°/70°	Light	61°
2006 Knoxville Marathon Partly cloudy throughout the day. 2006	27°/47°	-	26°
2005 Knoxville Marathon Partly cloudy throughout the day. 2005	41°/58°	-	38°

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