Grainger County, TN Weather Forecast
County weather hub
Sunny
Compare major city weather across Grainger County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Sunny, with a high near 76. West wind around 0 mph.
County Weather Overview
This county weather page brings together forecast coverage for Grainger 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 Grainger County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Apr 10 to Apr 15, 2026
- Latest sync
- Apr 9, 2026 5:43 PM EDT
- Forecast office
- MRX
- Source
- NOAA / NWS
Daily Outlook
This Week in Grainger County
Wednesday looks like the warmest upcoming period in Grainger County at 87 degrees F.
Friday Night is the coolest period ahead with temperatures near 49 degrees F.
The strongest winds are forecast for Sunday at about 0 to 5 mph S.
The forecast from Apr 10 through Apr 15 stays mostly dry.
Forecast Details
- Last updated
- Apr 9, 2026 5:43 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
Mostly clear, with a low around 49. Southwest wind around 0 mph.
Sunny, with a high near 79. Northwest wind around 0 mph.
Mostly clear, with a low around 51. Northeast wind around 0 mph.
Mostly sunny, with a high near 84. South wind 0 to 5 mph.
Partly cloudy, with a low around 57.
Mostly cloudy, with a high near 80.
Partly cloudy, with a low around 58.
Mostly sunny, with a high near 86.
Partly cloudy, with a low around 58.
Partly sunny, with a high near 87.
Mostly cloudy, with a low around 60.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Apr 10
|
Sunny
|
76°F |
0 mph
|
|
Friday Night
Apr 10
|
Mostly Clear
|
49°F |
0 mph
|
|
Saturday
Apr 11
|
Sunny
|
79°F |
0 mph
|
|
Saturday Night
Apr 11
|
Mostly Clear
|
51°F |
0 mph
|
|
Sunday
Apr 12
|
Mostly Sunny
|
84°F |
0 to 5 mph
S
|
|
Sunday Night
Apr 12
|
Partly Cloudy
|
57°F |
0 to 5 mph
SW
|
|
Monday
Apr 13
|
Mostly Cloudy
|
80°F |
0 to 5 mph
SW
|
|
Monday Night
Apr 13
|
Partly Cloudy
|
58°F |
0 to 5 mph
SW
|
|
Tuesday
Apr 14
|
Mostly Sunny
|
86°F |
0 to 5 mph
SW
|
|
Tuesday Night
Apr 14
|
Partly Cloudy
|
58°F |
0 to 5 mph
SW
|
|
Wednesday
Apr 15
|
Partly Sunny
|
87°F |
0 to 5 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 Grainger County.
Coverage
Forecast coverage currently spans 1 of 1 mapped cities in Grainger County.
Largest mapped city population in this region: 1,869.
