Knoxville · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Knoxville & neighbors — hit play
Every city on the map carries real forecast data from the same models as its city page, refreshed several times a day. The icon is the day's overall look; the number is the afternoon high.
Next 14 days at a glance
from the model forecast
Hottest day
83°
Sun, Sep 6
Coldest night
56°
Mon, Aug 24
Days with precip
8 / 14
of 14 forecast days
Nicest day
Mon, Aug 24
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 29 – Sun 30 Aug
78° 64°
87% precip chance
Sat 5 – Sun 6 Sep
83° 70°
80% precip chance
Sat 12 – Sun 13 Sep
68° 55°
typical range
Sat 19 – Sun 20 Sep
68° 54°
typical range
30 days — Knoxville
14 forecast + 16 climatology
Mon · Today Sunny
78°56°8%⌄
Wind7 mph SE
Gusts11 mph
UV index8 – Very high
Precip chance8%
Sunrise06:20
Sunset19:46
Tue · Tomorrow Mostly cloudy
76°60°17%⌄
Wind9 mph SE
Gusts17 mph
UV index7 – High
Precip chance17%
Sunrise06:21
Sunset19:45
Wednesday 26/8 Sunny
83°64°6.0 mm⌄
Wind11 mph SW
Gusts24 mph
UV index8 – High
Precip chance74%
Sunrise06:22
Sunset19:43
Thursday 27/8 Sunny
80°64°0.2 mm⌄
Wind9 mph NW
Gusts21 mph
UV index7 – High
Precip chance20%
Sunrise06:23
Sunset19:42
Friday 28/8 Sunny
80°59°9%⌄
Wind9 mph SE
Gusts24 mph
UV index7 – High
Precip chance9%
Sunrise06:24
Sunset19:40
Saturday 29/8 Mostly cloudy
78°64°14.5 mm⌄
Wind15 mph SE
Gusts34 mph
UV index6 – High
Precip chance87%
Sunrise06:25
Sunset19:39
Sunday 30/8 Showers
78°64°4.7 mm⌄
Wind13 mph SE
Gusts27 mph
UV index6 – High
Precip chance84%
Sunrise06:26
Sunset19:37
Monday 31/8 Fog
78°66°11.8 mm⌄
Wind9 mph SW
Gusts22 mph
UV index7 – High
Precip chance89%
Sunrise06:27
Sunset19:35
Tuesday 1/9 Fog
80°66°26.8 mm⌄
Wind18 mph NE
Gusts36 mph
UV index6 – High
Precip chance89%
Sunrise06:28
Sunset19:34
Wednesday 2/9 Mostly cloudy
78°65°32.8 mm⌄
Wind11 mph W
Gusts17 mph
UV index6 – High
Precip chance91%
Sunrise06:29
Sunset19:32
Thursday 3/9 Sunny
80°70°14%⌄
Wind12 mph SE
Gusts30 mph
UV index7 – High
Precip chance14%
Sunrise06:30
Sunset19:30
Friday 4/9 Showers
81°68°10.4 mm⌄
Wind13 mph SW
Gusts33 mph
UV index7 – High
Precip chance90%
Sunrise06:31
Sunset19:29
Saturday 5/9 Thunderstorms
81°70°3.7 mm⌄
Wind10 mph SW
Gusts31 mph
UV index6 – High
Precip chance80%
Sunrise06:32
Sunset19:27
Sunday 6/9 Mostly cloudy
83°71°0.1 mm⌄
Wind15 mph S
Gusts26 mph
UV index6 – High
Precip chance34%
Sunrise06:33
Sunset19:26
Monday 7/9 Rain (climatological)
73°59°24.9 mm⌄
Day≈68–79°
Night≈53–64°
Precip≈9.5 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 8/9 Partly cloudy (climatological)
74°59°20%⌄
Day≈68–79°
Night≈54–64°
Precip≈9.5 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 9/9 Partly cloudy (climatological)
77°61°20%⌄
Day≈72–83°
Night≈56–67°
Precip≈9.5 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 10/9 Rain (climatological)
73°59°20.9 mm⌄
Day≈68–79°
Night≈54–64°
Precip≈9.5 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 11/9 Partly cloudy (climatological)
71°57°20%⌄
Day≈65–76°
Night≈52–63°
Precip≈9.5 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 12/9 Partly cloudy (climatological)
68°56°20%⌄
Day≈62–73°
Night≈50–61°
Precip≈9.5 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 13/9 Rain (climatological)
67°55°13.7 mm⌄
Day≈62–73°
Night≈50–61°
Precip≈9.5 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 14/9 Partly cloudy (climatological)
73°59°20%⌄
Day≈67–78°
Night≈53–64°
Precip≈9.5 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Partly cloudy (climatological)
77°61°20%⌄
Day≈71–82°
Night≈55–66°
Precip≈9.5 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Rain (climatological)
75°60°21.7 mm⌄
Day≈70–81°
Night≈55–65°
Precip≈9.5 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Partly cloudy (climatological)
75°60°20%⌄
Day≈70–80°
Night≈55–65°
Precip≈9.5 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Partly cloudy (climatological)
73°58°20%⌄
Day≈67–78°
Night≈53–64°
Precip≈9.5 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Rain (climatological)
65°54°24.1 mm⌄
Day≈60–71°
Night≈49–60°
Precip≈9.5 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Partly cloudy (climatological)
68°56°20%⌄
Day≈62–73°
Night≈50–61°
Precip≈9.5 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Partly cloudy (climatological)
69°56°20%⌄
Day≈64–75°
Night≈51–62°
Precip≈9.5 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Rain (climatological)
78°62°26.5 mm⌄
Day≈73–84°
Night≈56–67°
Precip≈9.5 in / September
(climatological)Typical range for these dates · 1991–2020
How does a 30-day outlook work?
The first 14 days are a live model forecast. The back half of the month shows the typical range for those dates — useful for planning, not a literal prediction.
First 14 days: a real forecast, blended from NBM, ECMWF and GFS runs. Trust it most inside three days; by the second week treat it as a lean, not a promise.
Rest of the month: past day 14 we stop pretending to forecast and switch to the climate corridor — the range those dates have produced over three decades computed directly for Knoxville, with mild week-to-week wiggle.
Good question for this page: "Is late August usually humid in Chicago?" Bad question: "Do I need an umbrella on the 29th?" — three weeks out no one knows, and that's the honest answer.