Knoxville Marathon

Knoxville, TN, USA · April 11, 2027

50°·68° high·Light·Dry

Weather

Race Day Weather

50°at start

69° high

Breezy

Dry

Cool start — fast day potential, big temp swing

A cool 50°F at the start line is ideal for fast times — expect to warm up quickly once you're moving. Temps will climb significantly to 69°F by later miles, so expect fading conditions as the race progresses. Light winds shouldn't be a major factor for pacing.

Race day forecast available in 200 days

5 AM

6 AM

7 AM

8 AM

9 AM

10 AM

11 AM

12 PM

1 PM

2 PM

3 PM

4 PM

Pre-raceRace windowPost-race

Pace Calculator

Distance: 26.2mi

Target Finish Time

0:00:00

HH:MM:SS

Pace

—

Weather Adj.

—

Common Goals:

Get forecast alerts for Knoxville Marathon

We'll text or email you when the forecast shifts — so you can adjust gear, pacing, and strategy. Max one per day.

Race Info

Website

Course Map

FAQ

When is the 2027 Knoxville Marathon?

The 2027 Knoxville Marathon will be held on Sunday April 11, 2027.

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 2027 Knoxville Marathon?

The forecast calls for a high of 70°F and a low of 48°F with a 10% chance of rain. Check our detailed hourly forecast above for the best marathon race plan.

Historical Weather

Based on 20 years of data

Avg Temp

62°F

L:46° H:62°

RunScore

Conditions

Rain Freq

15%

3 of 20 yrs

Wind7mph

Dew41°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

Year	Low / High	Rain	Dew Point
2026 Knoxville Marathon Partly cloudy throughout the day. 2026	55°/83°	-	52°
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°