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Knoxville, TN 37909 Weather
Current conditions
Observed at Knoxville, McGhee Tyson Airport · 1 hr ago
Forecast
10-day-
This Afternoon
Sunny, with a high near 73. North wind around 0 mph.
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Tonight
Clear, with a low around 46. North wind 0 to 5 mph.
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Thursday
Sunny, with a high near 73. Northeast wind around 5 mph.
National Weather Service forecast updated 3 hrs ago.
Hourly
Hourly forecast- Now73°
- 6 PM71°
- 7 PM66°
- 8 PM60°
- 9 PM57°
- 10 PM56°
- 11 PM54°
- Thu12 AM52°
- 1 AM50°
- 2 AM49°
- 3 AM49°
- 4 AM48°
- 5 AM47°
- 6 AM47°
- 7 AM46°
- 8 AM46°
- 9 AM48°
- 10 AM54°
- 11 AM59°
- 12 PM63°
- 1 PM68°
- 2 PM71°
- 3 PM72°
- 4 PM73°
10-day forecast
Details- TodayOct 21Sunny46°73°
- ThuOct 22Sunny45°73°
- FriOct 23Sunny46°71°
- SatOct 24Sunny45°71°
- SunOct 25Sunny45°70°
- MonOct 26Sunny46°72°
- TueOct 27Mostly Sunny48°74°
- WedOct 28Partly cloudy51°75°
- ThuOct 29Partly cloudy51°75°
- FriOct 30Partly cloudy53°76°
Days after the National Weather Service's seven are MET Norway's outlook, a computer model with no forecaster's review.
Radar
Full mapWeather news near Knoxville
More weather news- Chilly Morning, Patio Afternoons: Knoxville Locked Into Sunny 70s Streak
The National Weather Service expects mostly clear conditions Tuesday night, with temperatures dropping to around 45 degrees. River fog remains possible near waterways Tuesday, October 20, from 5 to 9 a.m. EDT, but the…
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Knoxville weather: Dry and pleasant stretch this weekCalm and seasonable weather will dominate the forecast this week Tomorrow: Just a few high clouds with near-average temperatures. High: 72°. Wednesday: Plenty of sunshine and staying calm. High: 73°. The fall weather is…
- Sunny Streak: Knoxville Basks in 70-Degree Afternoons, Jacket Weather at Dawn
The mild afternoons will come with distinctly chilly mornings and nights. Tonight will drop to around 43 degrees, so early risers may want a jacket even as the afternoon feels comfortably warm. Tuesday and Wednesday…
- Bundle Up, Then Brighten Up: Knoxville’s Chilly Dawn Warms to Sunny 70s
Monday brings a high near 70, while Tuesday warms to about 73 under mostly sunny skies. Overnight lows will remain chilly, dipping to around 42 Monday night and 44 Tuesday night. The warmup continues Wednesday, when…
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Fall-like weather is hereKNOXVILLE, Tenn. (WVLT) - Fall-like weather is setting up shop this week with minimal rain expected. MONDAY: After a chilly and frosty start for some, temperatures rebound nicely into the upper 60s with lots of…
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FIRST ALERT: Frosty mornings and mild afternoons aheadKNOXVILLE, Tenn. (WVLT) - Mostly clear night with temperatures falling into the upper 30s and low 40s. Some patchy frost is possible especially in the higher elevations like the mountains, Cumberland Plateau, and SE KY…
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Frosty morning with seasonal temps returning by workweekKNOXVILLE, Tenn. (WVLT) - Cold temperatures take over this morning, but seasonal weather returns for the workweek. SUNDAY: Tracking frost chances in southern Kentucky as temperatures fall into the 30s and low 40s across…
- Knoxville Swaps Sizzle for Shiver: Frost on Deck, 70s Rebound Next Week
Knoxville woke Saturday to a sharp fall reset: light rain early, temperatures around 52 degrees, and a forecast high only 59 after recent summerlike heat. The rain should fade as the morning wears on, while north winds…
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FIRST ALERT: Cold temperatures tonight bring frost potentialKNOXVILLE, Tenn. (WVLT) - Our weekend cold front has brought the coldest air of the season so far to East TN! Portions of SE KY are under a Frost Advisory while the mountains are under a Freeze Warning through Sunday…
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Cold front brings weekend chance of frostKNOXVILLE, Tenn. (WVLT) - Yesterday’s cold front is leaving chilly temperatures and gusty winds, with frost chances on the way. SATURDAY: As you head out this morning, lows will be in the upper 40s. Expect considerable…
Air quality
Air quality is satisfactory, and air pollution poses little or no risk.
Forecast
- WedGood (50)
- ThuGood (50)
- FriModerate (51)
Knoxville, TN reporting area · 1 hr ago. Data from AirNow (EPA and its state, local and tribal partners); preliminary and subject to change.
Sun & moon
Almanac
MonthlyKnoxville Area, records since 1871. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).
Nearby
- Oak Ridge 23 km
- Maryville 22 km
- Farragut 14 km
- Sevierville 42 km
- Seymour 28 km
- Clinton 20 km
- Alcoa 18 km
- Lenoir City 27 km
- Jefferson City 52 km
- LaFollette 49 km
- Harriman 48 km
- Pigeon Forge 46 km
Forecasters' discussion
From the National Weather Service office in MRX, issued 4 hrs ago
Key Messages
Updated at 138 PM EDT Wed Oct 21 2026
- Continued pleasant fall weather for the next week
- Chances for patchy fog in the river valleys many mornings.
Discussion
Issued at 138 PM EDT Wed Oct 21 2026
Persistence forecast for the next several days, and most of the next week as the surface and lower levels of the atmosphere remain mostly under high pressure with ridging trying to build in from the west further up in the atmosphere.
This will lead to continued pleasant weather days with mostly clear skies, light winds, and temperatures right around seasonal normals. Have made a few tweaks to dew points and included patchy fog in the river valleys as we've seen the past several mornings... But otherwise this is a low impacts forecast for the southern Appalachians and eastern Tennessee Valley.
Increased clouds could move in next week as a trough swings through to our north, but as of this writing no precipitation is anticipated.
Aviation
(18Z TAFS) Issued at 138 PM EDT Wed Oct 21 2026
VFR conditions expected the next 24 hours. Some guidance is trying to bring in light fog once again overnight, but it hasn't occurred in the past couple of nights, so have left it out of the TAFs.
Preliminary Point Temps
Chattanooga Airport, TN 48 74 49 73 / 0 0 0 0 Knoxville McGhee Tyson Airport, TN 44 72 44 72 / 0 0 0 0 Oak Ridge, TN 45 72 45 71 / 0 0 0 0 Tri Cities Airport, TN 38 69 36 71 / 0 0 0 0
Forecasts, observations and alerts in the United States come from the National Weather Service (NOAA); radar from NOAA's Multi-Radar Multi-Sensor system; satellite imagery from NASA's Global Imagery Browse Services (GIBS) and NOAA's GOES satellites; the map from the U.S. Geological Survey's National Map; air quality from AirNow (EPA and its partners); hurricane information from the National Hurricane Center; climate normals and records from NOAA's Regional Climate Centers (ACIS). Forecasts outside the United States and the UV index: MET Norway (CC BY 4.0); observations outside the U.S.: airport reports via NOAA's Aviation Weather Center. Place names: GeoNames (CC BY 4.0). Data are copied on a schedule and may lag the sources; for warnings that affect your safety, follow your local National Weather Service office and emergency officials. Weather news is drawn from the 4Conservative index and reflects what the press published. Terms of use.