Jefferson County, TN Weather Forecast
County weather hub
Sunny
Compare major city weather across Jefferson County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Sunny, with a high near 75. Northwest wind 0 to 5 mph.
County Weather Overview
This county weather page brings together forecast coverage for Jefferson County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 1 of 1 mapped cities in Jefferson County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Apr 10 to Apr 15, 2026
- Latest sync
- Apr 9, 2026 6:07 PM EDT
- Forecast office
- MRX
- Source
- NOAA / NWS
Daily Outlook
This Week in Jefferson County
Wednesday looks like the warmest upcoming period in Jefferson County at 87 degrees F.
Friday Night is the coolest period ahead with temperatures near 48 degrees F.
The strongest winds are forecast for Monday at about 0 to 10 mph SW.
The forecast from Apr 10 through Apr 15 stays mostly dry.
Forecast Details
- Last updated
- Apr 9, 2026 6:07 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
Mostly clear, with a low around 48. Southwest wind around 0 mph.
Sunny, with a high near 78. West wind around 0 mph.
Mostly clear, with a low around 51. East wind around 0 mph.
Mostly sunny, with a high near 84. Southwest wind 0 to 5 mph.
Partly cloudy, with a low around 57.
Partly sunny, with a high near 81.
Partly cloudy, with a low around 57.
Mostly sunny, with a high near 86.
Partly cloudy, with a low around 58.
Mostly sunny, with a high near 87.
Mostly cloudy, with a low around 60.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Apr 10
|
Sunny
|
75°F |
0 to 5 mph
NW
|
|
Friday Night
Apr 10
|
Mostly Clear
|
48°F |
0 mph
|
|
Saturday
Apr 11
|
Sunny
|
78°F |
0 mph
|
|
Saturday Night
Apr 11
|
Mostly Clear
|
51°F |
0 mph
|
|
Sunday
Apr 12
|
Mostly Sunny
|
84°F |
0 to 5 mph
SW
|
|
Sunday Night
Apr 12
|
Partly Cloudy
|
57°F |
5 mph
S
|
|
Monday
Apr 13
|
Partly Sunny
|
81°F |
0 to 10 mph
SW
|
|
Monday Night
Apr 13
|
Partly Cloudy
|
57°F |
0 to 5 mph
SW
|
|
Tuesday
Apr 14
|
Mostly Sunny
|
86°F |
0 to 10 mph
SW
|
|
Tuesday Night
Apr 14
|
Partly Cloudy
|
58°F |
0 to 5 mph
SW
|
|
Wednesday
Apr 15
|
Mostly Sunny
|
87°F |
0 to 10 mph
SW
|
|
Wednesday Night
Apr 15
|
Mostly Cloudy
|
60°F |
0 to 5 mph
SW
|
Major City Forecasts
Live forecast snapshots for major cities across Jefferson County.
Coverage
Forecast coverage currently spans 1 of 1 mapped cities in Jefferson County.
Largest mapped city population in this region: 2,634.
