Saint Clair, TN Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Saint Clair, TN in one place.
Mostly sunny, with a high near 86. East wind around 5 mph.
Local Weather Overview
This forecast page for Saint Clair, TN is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Jul 13, 2026 12:44 PM EDT.
The active forecast window currently covers Jul 14 to Jul 19, 2026 for Saint Clair, TN.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 14 to Jul 19, 2026
- Latest sync
- Jul 13, 2026 12:44 PM EDT
- Forecast office
- MRX
- Source
- NOAA / NWS
Daily Outlook
This Week in Saint Clair
Friday looks like the warmest upcoming period in Saint Clair at 91 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 62 degrees F.
The strongest winds are forecast for Sunday at about 0 to 10 mph SW.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 13, 2026 12:44 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
Patchy fog after midnight. Mostly clear, with a low around 62. East wind 0 to 5 mph.
Patchy fog before 9am. Sunny, with a high near 88. North wind around 0 mph.
Mostly clear, with a low around 67. Northwest wind around 0 mph.
Sunny, with a high near 90. Northwest wind around 0 mph.
Mostly clear, with a low around 69.
Sunny, with a high near 91.
Mostly clear, with a low around 69.
A slight chance of rain showers between 8am and 2pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 90. Chance of precipitation is 40%.
A chance of showers and thunderstorms before 8pm, then a chance of showers and thunderstorms. Partly cloudy, with a low around 69. Chance of precipitation is 40%.
A chance of rain showers before 2pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 88. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 8pm, then a chance of showers and thunderstorms. Partly cloudy, with a low around 68.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Jul 14
|
Mostly Sunny
|
86°F |
5 mph
E
|
|
Tuesday Night
Jul 14
|
Mostly Clear then Patchy Fog
|
62°F |
0 to 5 mph
E
|
|
Wednesday
Jul 15
|
Patchy Fog then Sunny
|
88°F |
0 mph
|
|
Wednesday Night
Jul 15
|
Mostly Clear
|
67°F |
0 mph
|
|
Thursday
Jul 16
|
Sunny
|
90°F |
0 mph
|
|
Thursday Night
Jul 16
|
Mostly Clear
|
69°F |
0 mph
|
|
Friday
Jul 17
|
Sunny
|
91°F |
0 to 5 mph
N
|
|
Friday Night
Jul 17
|
Mostly Clear
|
69°F |
0 to 5 mph
NW
|
|
Saturday
Jul 18
|
Slight Chance Rain Showers then Chance Showers And Thunderstorms
|
90°F |
0 to 5 mph
NW
|
|
Saturday Night
Jul 18
|
Chance Showers And Thunderstorms
|
69°F |
0 to 5 mph
SW
|
|
Sunday
Jul 19
|
Chance Rain Showers then Chance Showers And Thunderstorms
|
88°F |
0 to 10 mph
SW
|
|
Sunday Night
Jul 19
|
Chance Showers And Thunderstorms
|
68°F |
0 to 5 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Saint Clair.