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Summer 2026 Weather History in Knoxville Tennessee, United States

The data for this report comes from the McGhee Tyson Airport. See all nearby weather stations

This report shows the past weather for Knoxville, providing a weather history for the summer of 2026. It features all historical weather data series we have available, including the Knoxville temperature history for the summer of 2026. You can drill down from year to month and even day level reports by clicking on the graphs.

Knoxville Temperature History in the Summer of 2026

History:202520242023202220212020201920182017
Temperature history in the Summer of 2026 in KnoxvilleJunJulAug40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°F100°F100°FSpringFallNowNow
The daily range of reported temperatures (gray bars) and 24-hour highs (red ticks) and lows (blue ticks), placed over the daily average high (faint red line) and low (faint blue line) temperature, with 25th to 75th and 10th to 90th percentile bands.

Hourly Temperature in the Summer of 2026 in Knoxville

History:202520242023202220212020201920182017
Hourly Temperature in the Summer of 2026 in KnoxvilleJunJulAug12 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMSpringFallNowNowwarmhot
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The hourly reported temperature, color coded into bands. The shaded overlays indicate night and civil twilight.
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Cloud Cover in the Summer of 2026 in Knoxville

History:202520242023202220212020201920182017
Cloud Cover in the Summer of 2026 in KnoxvilleJunJulAug12 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMSpringFallNowNow
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
no significant cloudno cloud detectedceiling and visibility ok
The hourly reported cloud coverage, categorized by the percentage of the sky covered by clouds.

Daily Precipitation in the Summer of 2026 in Knoxville

History:202520242023202220212020201920182017
Daily Precipitation in the Summer of 2026 in KnoxvilleJunJulAug0.0 in0.0 in0.5 in0.5 in1.0 in1.0 in1.5 in1.5 in2.0 in2.0 in2.5 in2.5 in3.0 in3.0 in3.5 in3.5 inSpringFallNowNow
The daily measured quantity of liquid or liquid-equivalent precipitation.

Observed Weather in the Summer of 2026 in Knoxville

History:202520242023202220212020201920182017
Observed Weather in the Summer of 2026 in KnoxvilleJunJulAug12 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMSpringFallNowNow
foghazedrizzlelight rainmoderate rainheavy rainfreezing rainsleetsnow grainslight snowmoderate snowheavy snowhailthunderstorm
The hourly observed weather, color coded by category (in order of severity). If multiple reports are present, the most severe code is shown.
DayObservationsPrecipitationCodes
Mon, Jun 1 Thunderstorm, Thunderstorm with Light Rain, Light Rain0.01 inTS, -TSRA, -RA
Mon, Jun 8 Thunderstorm in the Vicinity, Heavy Rain, Rain, Light Rain, Mist0.61 inVCTS, +RA, RA, -RA, BR
Tue, Jun 9 Light Rain, Mist0.15 in-RA, BR
Sun, Jun 14 Rain, Light Rain, Haze, Mist0.15 inRA, -RA, HZ, BR
Thu, Jun 18 Rain, Light Rain, Mist0.17 inRA, -RA, BR
Fri, Jun 19 Light Rain, Mist0.03 in-RA, BR
Mon, Jun 22 Light Rain0.03 in-RA
Tue, Jun 23 Rain, Light Rain, Mist0.42 inRA, -RA, BR
Wed, Jun 24 Patches of FogBCFG
Sat, Jun 27 Thunderstorm, Thunderstorm with Light Rain, Thunderstorm with Rain0.00 inTS, -TSRA, TSRA
Sun, Jun 28 Thunderstorm, Thunderstorm with Heavy Rain, Thunderstorm with Rain, Light Rain, Fog, Mist1.99 inTS, +TSRA, TSRA, -RA, FG, BR
Tue, Jun 30 MistBR
Thu, Jul 2 HazeHZ
Fri, Jul 3 Thunderstorm, Thunderstorm in the Vicinity, Thunderstorm with Light Rain, Thunderstorm with Rain0.06 inTS, VCTS, -TSRA, TSRA
Sat, Jul 4 HazeHZ
Sun, Jul 5 Thunderstorm, Haze, MistTS, HZ, BR
Mon, Jul 6 Thunderstorm, Thunderstorm with Light Rain, Light Rain0.01 inTS, -TSRA, -RA
Tue, Jul 7 MistBR
Thu, Jul 9 Thunderstorm, Light Rain0.00 inTS, -RA
Fri, Jul 10 Light Rain0.01 in-RA
Sat, Jul 11 Light Rain0.08 in-RA
Sun, Jul 12 Thunderstorm with Heavy Rain, Thunderstorm with Light Rain, Thunderstorm with Rain, Rain, Light Rain, Mist1.78 in+TSRA, -TSRA, TSRA, RA, -RA, BR
Mon, Jul 13 Thunderstorm, Thunderstorm with Heavy Rain, Thunderstorm with Light Rain, Thunderstorm with Rain, Light Rain, Mist0.13 inTS, +TSRA, -TSRA, TSRA, -RA, BR
Wed, Jul 15 Mist0.00 inBR
Thu, Jul 16 ThunderstormTS
Fri, Jul 17 Thunderstorm, Thunderstorm with Light Rain, Light Rain0.07 inTS, -TSRA, -RA
Sat, Jul 18 Thunderstorm, Thunderstorm with Rain0.00 inTS, TSRA
Mon, Jul 20 Thunderstorm, Thunderstorm in the VicinityTS, VCTS
Tue, Jul 21 Light Rain0.00 in-RA
Wed, Jul 22 Thunderstorm in the Vicinity, Thunderstorm with Light Rain, Heavy Rain, Rain, Light Rain, Mist1.47 inVCTS, -TSRA, +RA, RA, -RA, BR
Thu, Jul 23 Thunderstorm with Heavy Rain, Thunderstorm with Light Rain, Heavy Rain, Light Rain, Mist0.63 in+TSRA, -TSRA, +RA, -RA, BR
Fri, Jul 24 Rain, Light Rain, Mist0.17 inRA, -RA, BR
Sat, Jul 25 Light Rain0.00 in-RA
Sun, Jul 26 MistBR
Mon, Jul 27 Thunderstorm with Light Rain, Light Rain0.01 in-TSRA, -RA
Tue, Jul 28 Thunderstorm with Rain0.12 inTSRA
Sat, Aug 1 Rain, Light Rain, Mist0.61 inRA, -RA, BR
Sun, Aug 2 Heavy Rain, Rain, Light Rain, Mist0.85 in+RA, RA, -RA, BR
Mon, Aug 3 Light Rain0.04 in-RA
Tue, Aug 4 Thunderstorm, Thunderstorm with Light Rain, Light Rain0.03 inTS, -TSRA, -RA
Wed, Aug 5 Thunderstorm, Thunderstorm with Light Rain0.01 inTS, -TSRA
Thu, Aug 6 ThunderstormTS
Fri, Aug 7 Thunderstorm, Thunderstorm with Heavy Rain, Thunderstorm with Light Rain, Thunderstorm with Rain, Mist0.11 inTS, +TSRA, -TSRA, TSRA, BR
Sat, Aug 8 Light Rain0.01 in-RA
Sun, Aug 9 Thunderstorm0.00 inTS
Mon, Aug 10 Fog, MistFG, BR
Tue, Aug 11 Thunderstorm, Thunderstorm with Heavy Rain, Thunderstorm with Light Rain, Thunderstorm with Rain, Mist0.50 inTS, +TSRA, -TSRA, TSRA, BR
Wed, Aug 12 Thunderstorm, Light Rain0.02 inTS, -RA
Thu, Aug 13 Thunderstorm0.00 inTS
Sat, Aug 15 ThunderstormTS
Mon, Aug 17 Thunderstorm, Thunderstorm with Light Rain, Thunderstorm with Rain, Fog, Mist1.69 inTS, -TSRA, TSRA, FG, BR
Tue, Aug 18 Haze, MistHZ, BR
Wed, Aug 19 Light Rain0.00 in-RA
Thu, Aug 20 Thunderstorm, Thunderstorm with Light Rain, Thunderstorm with Rain, Light Rain, Mist0.25 inTS, -TSRA, TSRA, -RA, BR
Fri, Aug 21 Thunderstorm, Thunderstorm with Heavy Rain, Thunderstorm with Light Rain, Thunderstorm with Rain, Mist0.58 inTS, +TSRA, -TSRA, TSRA, BR
Sat, Aug 22 Fog, MistFG, BR
Mon, Aug 24 Light Rain, Patches of Fog-RA, BCFG

Hours of Daylight and Twilight in the Summer of 2026 in Knoxville

History:202520242023202220212020201920182017
Hours of Daylight and Twilight in the Summer of 2026 in KnoxvilleJunJulAug0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrSpringFallJun 2114 hr, 36 minJun 2114 hr, 36 minnightnightdaydayAug 3112 hr, 58 minAug 3112 hr, 58 minNowNow
The number of hours during which the Sun is visible (black line). From bottom (most yellow) to top (most gray), the color bands indicate: full daylight, twilight (civil, nautical, and astronomical), and full night.

Sunrise & Sunset with Twilight in the Summer of 2026 in Knoxville

History:202520242023202220212020201920182017
Sunrise & Sunset with Twilight in the Summer of 2026 in KnoxvilleJunJulAug2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMSpringFall6:18 AM6:18 AMJun 128:52 PMJun 128:52 PM7:06 AM7:06 AMAug 318:04 PMAug 318:04 PMNowNow
The solar day over the course of the Summer of 2026. From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray.

Solar Elevation and Azimuth in the Summer of 2026 in Knoxville

History:202520242023202220212020201920182017
Solar Elevation and Azimuth in the Summer of 2026 in KnoxvilleJunJulAug12 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMSpringFall0010202030304050506060700010102030304040506070NowNow
northeastsouthwest
Solar elevation and azimuth in the the summer of 2026. The black lines are lines of constant solar elevation (the angle of the sun above the horizon, in degrees). The background color fills indicate the azimuth (the compass bearing) of the sun. The lightly tinted areas at the boundaries of the cardinal compass points indicate the implied intermediate directions (northeast, southeast, southwest, and northwest).

Moon Rise, Set & Phases in the Summer of 2026 in Knoxville

History:202520242023202220212020201920182017
Moon Rise, Set & Phases in the Summer of 2026 in KnoxvilleJunJulAug12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMSpringFallMay 164:02 PMMay 164:02 PMMay 314:46 AMMay 314:46 AMJun 1410:55 PMJun 1410:55 PMJun 297:57 PMJun 297:57 PMJul 145:44 AMJul 145:44 AMJul 2910:36 AMJul 2910:36 AMAug 121:37 PMAug 121:37 PMAug 2812:19 AMAug 2812:19 AMSep 1011:28 PMSep 1011:28 PMSep 2612:50 PMSep 2612:50 PM8:57 PM8:57 PM8:37 PM8:37 PM6:06 AM6:06 AM9:00 PM9:00 PM6:37 AM6:37 AM9:31 PM9:31 PM8:28 PM8:28 PM6:30 AM6:30 AM8:38 PM8:38 PM7:58 PM7:58 PM7:26 AM7:26 AM6:51 PM6:51 PM7:19 AM7:19 AM
The time in which the moon is above the horizon (light blue area), with new moons (dark gray lines) and full moons (blue lines) indicated. The shaded overlays indicate night and civil twilight.

Humidity Comfort Levels in the Summer of 2026 in Knoxville

History:202520242023202220212020201920182017
Humidity Comfort Levels in the Summer of 2026 in KnoxvilleJunJulAug12 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMSpringFallNowNow
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The hourly reported humidity comfort level, categorized by dew point. The shaded overlays indicate night and civil twilight.

Wind Speed in the Summer of 2026 in Knoxville

History:202520242023202220212020201920182017
Wind Speed in the Summer of 2026 in KnoxvilleJunJulAug0 mph0 mph10 mph10 mph20 mph20 mph30 mph30 mph40 mph40 mph50 mph50 mphSpringFallNowNow
The daily range of reported wind speeds (gray bars), with maximum gust speeds (red ticks).

Hourly Wind Speed in the Summer of 2026 in Knoxville

History:202520242023202220212020201920182017
Hourly Wind Speed in the Summer of 2026 in KnoxvilleJunJulAug12 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMSpringFallNowNow
0 mph calm 1 mph light air 4 mph light breeze 8 mph gentle breeze 13 mph moderate breeze 18 mph fresh breeze 25 mph strong breeze 31 mph near gale 39 mph gale 47 mph strong gale 55 mph storm 64 mph violent storm 73 mph hurricane force
The hourly reported wind speed, color coded into bands according to the Beaufort scale. The shaded overlays indicate night and civil twilight.
Growing degree days are a measure of yearly heat accumulation used to predict plant and animal development, and defined as the integral of warmth above a base temperature, discarding any excess above a maximum temperature. In this report, we use a base of 50°F and a cap of 86°F.

Growing Degree Days in the Summer of 2026 in Knoxville

History:202520242023202220212020201920182017
Growing Degree Days in the Summer of 2026 in KnoxvilleJunJulAug500°F500°F1,000°F1,000°F1,500°F1,500°F2,000°F2,000°F2,500°F2,500°F3,000°F3,000°F3,500°F3,500°F4,000°F4,000°F4,500°F4,500°FSpringFallNowNow
The growing degree days accumulated from reported temperatures over the course of the summer (solid black line), placed over the average accumulation (faint line), with 25th to 75th and 10th to 90th percentile bands. Gaps indicate days without enough temperature reports to calculate a complete daily value; totals following gaps may therefore be understated.

Hourly Wind Direction in 2026 in Knoxville

History:202520242023202220212020201920182017
Hourly Wind Direction in 2026 in KnoxvilleJunJulAug12 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMSpringFallNowNow
calmnortheastsouthwest
The hourly reported wind direction, color coded by compass point. The shaded overlays indicate night and civil twilight.

Atmospheric Pressure in the Summer of 2026 in Knoxville

History:202520242023202220212020201920182017
Atmospheric Pressure in the Summer of 2026 in KnoxvilleJunJulAug29.6 inHg29.6 inHg29.7 inHg29.7 inHg29.8 inHg29.8 inHg29.9 inHg29.9 inHg30.0 inHg30.0 inHg30.1 inHg30.1 inHg30.2 inHg30.2 inHg30.3 inHg30.3 inHg30.4 inHg30.4 inHgSpringFallNowNow
The daily range of atmospheric pressure (gray bars), as measured by the altimeter setting reported in e.g. a METAR report.

The details of the data sources used for this report can be found on the McGhee Tyson Airport page.

See all nearby weather stations

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