Knoxville, Tennessee Weather
Camellia Blooms Break Through. Day 50 of autumn. Read this microseason across nine climate regions →
Knoxville weather forecast — hour by hour, 7-day outlook, NOAA radar
Conditions updated 4:29 PM EST · Open-Meteo
- TodayNov 10Clear——68°36°—
- WednesdayNov 11Overcast49%0.27″68°42°0°
- ThursdayNov 12Light Drizzle23%0.02″56°46°-12°
- FridayNov 13Light Drizzle——47°40°-9°
- SaturdayNov 14Partly Cloudy——49°36°+2°
- SundayNov 15Overcast——49°33°0°
- MondayNov 16Overcast——52°37°+3°
Air quality now AQI 66 · Moderate
AQI 66 (Moderate), driven by Ozone. AQI flat over the last 6 hours (within ±3 points). Ozone at AQI 49 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
Ozone × UV × Sky
Ozone at AQI 49 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
- Present
- AQI 49
- UV peak
- 0.5 at earlier today
- Sky at peak
- clear
- Projected peak
- AQI 49
Trends
Seven days of AQI and PM2.5.
Hourly air-quality data from the Copernicus Atmosphere Monitoring Service, charted across the past and next several days. Dashed lines mark the AQI breakpoints at 50 (Good → Moderate) and 100 (Moderate → Unhealthy for Sensitive Groups).
When the wind is in the west, the weather is at its best.
- Moonrise
- 8:41 AM
- Moonset
- 6:15 PM
- In sign
- ♐︎ Sagittarius
Camellia Blooms Break Through
Read this microseason across nine climate regions →
All 72 microseasons on the year wheel →
Knoxville at a glance
- Today vs. normal: Today averages 52°F (high 68°F, low 36°F), 2°F above the 50°F normal for Nov 10
- Last frost: April 11 (1991–2020 median, NOAA station 8 km away)
- Microseason: Nov 6–10
- Planting calendar: November — harvest fall brassicas, carrots
16-Day Forecast — Knoxville
- Tue68°36°0%
- Wed68°42°49%
- Thu56°46°23%
- Fri47°40°5%
- Sat49°36°0%
- Sun49°33°0%
- Mon52°37°9%
- Tue58°38°5%
- Wed58°38°1%
- Thu60°39°3%
- Fri59°45°3%
- Sat68°44°29%
- Sun64°44°39%
- Mon44°29°36%
- Tue38°27°19%
- Wed44°27°19%
Forecast data from Open-Meteo (CC BY 4.0).
Live wind & temperature near Knoxville
Interactive wind and temperature map centered on Knoxville — it loads in your browser. Open the full weather map.
Right now in the garden
Post-frost dormancy
As of November 10, the season's first frost (typically October 28) is due or past. Bring frost-tender plants indoors, mulch overwintering beds, and turn spent plantings under. This city's planting calendar for November: harvest fall brassicas and carrots.
SPC Convective Outlook
Storm Prediction Center — Knoxville
SPC includes Knoxville in the general thunderstorm area tomorrow — no severe risk, but storms are possible.
- TODAYNONENo severe risk
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3NONENo severe risk
Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.
Source: NOAA / NWS Storm Prediction Center categorical convective outlook.
Sun & seasons in Knoxville
Knoxville sits in Knox County, where the year’s longest day runs 14h 36m of daylight and its shortest just 9h 43m — a swing of +4h 53m between the June and December solstices. Clocks spring forward on Sunday, March 8, 2026 and fall back on Sunday, November 1, 2026.
Nashville, the state’s largest city, lies about 159 miles to the W. The nearest town Knoxville tracks is Kahite, roughly 32 miles to the SSW.
Air quality in Knoxville
Air quality in Knoxville’s county has held roughly steady since 2020; its cleanest year on record was 2020 (median AQI 44). See the full air-quality history for Knoxville.
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| March | lettuce, peas, spinach, radishes | — |
| April | lettuce, peas, spinach, radishes | spinach, radishes |
| May | tomatoes, peppers, beans, squash | lettuce, peas, spinach, radishes |
| June | tomatoes, peppers, beans, squash | lettuce, peas, spinach, beans, summer squash |
| July | tomatoes, peppers, beans, squash | tomatoes, peppers, beans, summer squash, garlic |
| August | beans, squash, fall brassicas, carrots | tomatoes, peppers, beans, summer squash, winter squash |
| September | garlic (overwinter) | tomatoes, peppers, beans, summer squash, winter squash |
| October | garlic (overwinter) | tomatoes, peppers, beans, summer squash, winter squash, fall brassicas, carrots |
| November | — | fall brassicas, carrots |
A year in weather
Knoxville peaks at about 77°F in July and bottoms near 37°F in January; December brings the heaviest rain (4.9 inches) and October the least (2.4 inches).
| Month | Mean temp | Precip |
|---|---|---|
| January | 37° | 4.6″ |
| February | 40° | 4.1″ |
| March | 48° | 4.8″ |
| April | 57° | 4.0″ |
| May | 65° | 3.5″ |
| June | 74° | 3.8″ |
| July | 77° | 4.5″ |
| August | 76° | 4.4″ |
| September | 71° | 2.7″ |
| October | 60° | 2.4″ |
| November | 48° | 3.7″ |
| December | 40° | 4.9″ |
Regional context
Similar climates Powell, TN, Halls, TN, John Sevier, TN
In Knoxville, modelled 1991-2020 normals (EC_Earth3P_HR model via Open-Meteo) put January near 37°F and July near 77°F — a 41°F seasonal arc — with about 47.5 inches of precipitation.
Rainfall in Knoxville splits evenly between the seasons: December tops out at 4.9 inches, and October logs 2.4 inches — neither half of Knoxville's year dominates. That even rhythm groups Knoxville with places like Powell, TN, Halls, TN and John Sevier, TN.
Once Knoxville passes April 11, freezes fade and Knoxville's beds take peas, lettuce, spinach, and radishes. Knoxville's heat-lovers — tomatoes, peppers, squash — hold off until Knoxville's frost risk clears, 10-14 days on. Frost returns to Knoxville near October 28, ending the tender-crop season. That date is a median: Knoxville freezes sooner in half of years.
Similar climates: Powell, TN, Halls, TN, John Sevier, TN, Karns, TN, Rockford, TN.
Frequently asked
- When does it freeze in Knoxville?
- Knoxville's last spring frost lands near April 11, and in Knoxville the first fall frost follows around October 28.
- What is the rainy season in Knoxville?
- Knoxville sees its heaviest rain in December (around 4.9 inches), part of roughly 48 inches a year.
- What is the warmest month in Knoxville?
- July is Knoxville's warmest month, averaging about 77°F.
- What is the coldest month in Knoxville?
- Knoxville bottoms out in January, with a mean near 37°F.
- When can I start a vegetable garden in Knoxville?
- Time tomatoes in Knoxville for two weeks after April 11; peas and greens start at Knoxville's frost line.
- What hardiness zone is Knoxville?
- Knoxville's USDA zone comes from its January mean (37°F); enter the ZIP on the USDA lookup for the number.
- What is the 10-day forecast for Knoxville?
- Knoxville's extended outlook — daily high and low temperatures and precipitation chances for each upcoming day — is in the daily forecast above.
- Will it rain this week in Knoxville?
- See this week's day-by-day rain chances for Knoxville in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Knoxville?
- Current conditions for Knoxville and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Knoxville forecast updated?
- The Knoxville forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Knoxville?
- Today's sunrise and sunset times for Knoxville are in the Almanac section above, along with civil dawn, civil dusk, and day length. Day length is longest near the summer solstice and shortest near the winter solstice.
- How accurate is the weather forecast for Knoxville?
- The next few days in Knoxville's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Knoxville sits at 36.0°N; its climate zone is humid subtropical (Köppen approximation).
ZIP codes in Knoxville
- 37901
- 37902
- 37909
- 37912
- 37914
- 37915
- 37916
- 37917
- 37918
- 37919
- 37920
- 37921
- 37922
- 37923
- 37924
- 37927
- 37928
- 37929
- 37931
- 37932
- 37938
- 37939
- 37950
- 37995
- 37996
- 37997