Marion County, TN Weather Forecast
County weather hub
Chance Showers And Thunderstorms
Compare major city weather across Marion County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
A chance of showers and thunderstorms. Partly sunny. High near 87, with temperatures falling to around 83 in the afternoon. Northwest wind 0 to 5 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
County Weather Overview
This county weather page brings together forecast coverage for Marion County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 4 of 4 mapped cities in Marion County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Jul 17 to Jul 23, 2026
- Latest sync
- Jul 17, 2026 5:54 PM CDT
- Forecast office
- MRX
- Source
- NOAA / NWS
Daily Outlook
This Week in Marion County
Tuesday looks like the warmest upcoming period in Marion County at 89 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 66 degrees F.
The strongest winds are forecast for Wednesday Night at about 5 to 10 mph N.
Precipitation is mentioned in 12 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 17, 2026 5:54 PM CDT
- Coverage
- 7 days
- Time zone
- America/Chicago
- Forecast office
- MRX
- Radar station
- KHTX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 71. Northwest wind 0 to 5 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
A chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 87. Northwest wind 0 to 5 mph. Chance of precipitation is 30%.
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 71. Northwest wind 0 to 5 mph. Chance of precipitation is 30%.
A slight chance of rain showers between 8am and 11am, then showers and thunderstorms likely between 11am and 5pm, then showers and thunderstorms likely. Partly sunny, with a high near 87. Northwest wind 0 to 5 mph. Chance of precipitation is 60%.
Showers and thunderstorms likely before 8pm. Partly cloudy, with a low around 71. Northwest wind 0 to 5 mph. Chance of precipitation is 60%.
A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88. Northwest wind around 0 mph. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 72. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms after 8am. Mostly sunny, with a high near 89. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 73. Chance of precipitation is 20%.
A chance of showers and thunderstorms. Mostly sunny, with a high near 87. Chance of precipitation is 40%.
A chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 66. Chance of precipitation is 40%.
Mostly sunny, with a high near 84.
Mostly clear, with a low around 66.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
This Afternoon
Jul 17
|
Chance Showers And Thunderstorms
|
87°F |
0 to 5 mph
NW
|
|
Tonight
Jul 17
|
Chance Showers And Thunderstorms then Partly Cloudy
|
71°F |
0 to 5 mph
NW
|
|
Saturday
Jul 18
|
Chance Showers And Thunderstorms
|
87°F |
0 to 5 mph
NW
|
|
Saturday Night
Jul 18
|
Chance Showers And Thunderstorms then Partly Cloudy
|
71°F |
0 to 5 mph
NW
|
|
Sunday
Jul 19
|
Showers And Thunderstorms Likely
|
87°F |
0 to 5 mph
NW
|
|
Sunday Night
Jul 19
|
Showers And Thunderstorms Likely then Partly Cloudy
|
71°F |
0 to 5 mph
NW
|
|
Monday
Jul 20
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
88°F |
0 mph
|
|
Monday Night
Jul 20
|
Slight Chance Showers And Thunderstorms then Mostly Clear
|
72°F |
0 mph
|
|
Tuesday
Jul 21
|
Slight Chance Showers And Thunderstorms
|
89°F |
0 to 5 mph
SW
|
|
Tuesday Night
Jul 21
|
Slight Chance Showers And Thunderstorms
|
73°F |
5 mph
SW
|
|
Wednesday
Jul 22
|
Chance Showers And Thunderstorms
|
87°F |
5 mph
W
|
|
Wednesday Night
Jul 22
|
Chance Showers And Thunderstorms
|
66°F |
5 to 10 mph
N
|
|
Thursday
Jul 23
|
Mostly Sunny
|
84°F |
5 mph
N
|
|
Thursday Night
Jul 23
|
Mostly Clear
|
66°F |
5 mph
N
|
Major City Forecasts
Live forecast snapshots for major cities across Marion County.
Coverage
Forecast coverage currently spans 4 of 4 mapped cities in Marion County.
Largest mapped city population in this region: 3,009.
