Knox County, TN Weather Forecast
County weather hub
Sunny
Compare major city weather across Knox County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Sunny, with a high near 84. Northwest wind around 0 mph.
County Weather Overview
This county weather page brings together forecast coverage for Knox County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 2 of 2 mapped cities in Knox County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Oct 8 to Oct 13, 2026
- Latest sync
- Oct 7, 2026 3:43 PM EDT
- Forecast office
- MRX
- Source
- NOAA / NWS
Daily Outlook
This Week in Knox County
Thursday looks like the warmest upcoming period in Knox County at 84 degrees F.
Thursday Night is the coolest period ahead with temperatures near 55 degrees F.
The strongest winds are forecast for Sunday at about 15 to 20 mph SE.
Precipitation is mentioned in 8 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 7, 2026 3:43 PM EDT
- Coverage
- 6 days
- Time zone
- America/New_York
- Forecast office
- MRX
- Radar station
- KMRX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Partly cloudy, with a low around 55. Northeast wind around 0 mph.
Mostly sunny, with a high near 84. Northeast wind 0 to 5 mph.
A slight chance of rain showers after 2am. Mostly cloudy, with a low around 58. Northeast wind 0 to 5 mph. Chance of precipitation is 20%.
A chance of rain showers. Partly sunny, with a high near 80. East wind 0 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.
A chance of rain showers before 8pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 62. Chance of precipitation is 70%.
Rain showers before 2pm, then showers and thunderstorms likely. Mostly cloudy, with a high near 77. Chance of precipitation is 80%.
Showers and thunderstorms likely. Mostly cloudy, with a low around 61. Chance of precipitation is 70%.
A chance of rain showers. Partly sunny, with a high near 78. Chance of precipitation is 30%.
A slight chance of rain showers before 8pm. Partly cloudy, with a low around 58. Chance of precipitation is 20%.
Mostly sunny, with a high near 81.
A slight chance of rain showers after 2am. Partly cloudy, with a low around 56.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Thursday
Oct 8
|
Sunny
|
84°F |
0 mph
|
|
Thursday Night
Oct 8
|
Partly Cloudy
|
55°F |
0 mph
|
|
Friday
Oct 9
|
Mostly Sunny
|
84°F |
0 to 5 mph
NE
|
|
Friday Night
Oct 9
|
Mostly Cloudy then Slight Chance Rain Showers
|
58°F |
0 to 5 mph
NE
|
|
Saturday
Oct 10
|
Chance Rain Showers
|
80°F |
0 to 15 mph
E
|
|
Saturday Night
Oct 10
|
Showers And Thunderstorms Likely
|
62°F |
15 mph
E
|
|
Sunday
Oct 11
|
Rain Showers
|
77°F |
15 to 20 mph
SE
|
|
Sunday Night
Oct 11
|
Showers And Thunderstorms Likely
|
61°F |
10 to 20 mph
SW
|
|
Columbus Day
Oct 12
|
Chance Rain Showers
|
78°F |
5 to 10 mph
W
|
|
Monday Night
Oct 12
|
Slight Chance Rain Showers then Partly Cloudy
|
58°F |
0 to 5 mph
NW
|
|
Tuesday
Oct 13
|
Mostly Sunny
|
81°F |
0 to 5 mph
NW
|
|
Tuesday Night
Oct 13
|
Partly Cloudy then Slight Chance Rain Showers
|
56°F |
0 to 5 mph
SW
|
Major City Forecasts
Live forecast snapshots for major cities across Knox County.
Coverage
Forecast coverage currently spans 2 of 2 mapped cities in Knox County.
Largest mapped city population in this region: 190,223.
