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Knoxville, TN 37939 Weather
Current conditions
Observed at Knoxville, McGhee Tyson Airport · 35 min ago
Forecast
10-day-
Tonight
Mostly clear, with a low around 46. North wind 0 to 5 mph.
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Wednesday
Sunny, with a high near 74. North wind 0 to 5 mph.
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Wednesday Night
Clear, with a low around 47. North wind 0 to 5 mph.
National Weather Service forecast updated 5 hrs ago.
Hourly
Hourly forecast- Now51°
- 1 AM50°
- 2 AM49°
- 3 AM48°
- 4 AM48°
- 5 AM47°
- 6 AM47°
- 7 AM46°
- 8 AM46°
- 9 AM48°
- 10 AM53°
- 11 AM58°
- 12 PM63°
- 1 PM68°
- 2 PM72°
- 3 PM73°
- 4 PM74°
- 5 PM73°
- 6 PM71°
- 7 PM66°
- 8 PM60°
- 9 PM58°
- 10 PM56°
- 11 PM54°
10-day forecast
Details- TonightOct 20Mostly Clear46°
- TodayOct 21Sunny47°74°
- ThuOct 22Sunny47°72°
- FriOct 23Sunny48°72°
- SatOct 24Sunny45°71°
- SunOct 25Sunny46°71°
- MonOct 26Mostly Sunny49°73°
- TueOct 27Mostly Sunny73°
- WedOct 28Cloudy51°72°
- ThuOct 29Partly cloudy50°66°
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-
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…
- Knoxville’s Last Taste of Summer Before Frosty Fall Weekend Hits
Knoxville is getting one more warm, mostly sunny day Friday before a sharp fall cooldown settles in for the weekend. Temperatures will climb from the upper 60s early to near 82 degrees, but the summerlike stretch will…
Air quality
Acceptable. Unusually sensitive people should consider limiting prolonged outdoor exertion.
Forecast
- WedGood (50)
- ThuModerate (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 28 km
- Maryville 26 km
- Farragut 21 km
- Sevierville 39 km
- Seymour 24 km
- Clinton 20 km
- Alcoa 22 km
- Lenoir City 34 km
- Jefferson City 45 km
- LaFollette 46 km
- Harriman 53 km
- Pigeon Forge 43 km
Forecasters' discussion
From the National Weather Service office in MRX, issued 4 hrs ago
Key Messages
Updated at 721 PM EDT Tue Oct 20 2026
- Dry weather dominates the forecast period, with cool mornings and pleasant afternoons each day. Afternoon relative humidity will remain on the lower side as well.
Discussion
Issued at 118 PM EDT Tue Oct 20 2026
Morning fog along rivers and lakes will be possible again late tonight as cold air moves over warm waters. This will probably repeat each morning for the next several days. Otherwise, we will have dry and sunny weather for the remainder of the week as a large mid/upper ridge builds to our west in a blocking pattern, and gradually shifts east.
One adjustment to the forecast grids will be to lower dewpoints, which have been too high in the NBM today. Went with NBM 10th percentile for the daytime hours through Friday.
Aviation
(00Z TAFS) Issued at 721 PM EDT Tue Oct 20 2026
High clouds will dissipate over the next few hours. VFR conditions will continue this TAF cycle. Light northeasterly winds will become more northwesterly tomorrow.
Preliminary Point Temps
Chattanooga Airport, TN 48 74 49 74 / 0 0 0 0 Knoxville McGhee Tyson Airport, TN 46 74 46 73 / 0 0 0 0 Oak Ridge, TN 46 74 47 73 / 0 0 0 0 Tri Cities Airport, TN 42 71 42 70 / 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.