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Saint Marys, Tennessee Weather Forecast
Saint Marys, Tennessee Weather
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Weather Forecast for Saint Marys, Tennessee : Lawrence County
Issued: 12:31 am CST Dec 17, 2025 Latitude: 35.0350822 Longitude: -87.4189098 View on Google Maps

MouseOver for Detail Forecast
Overnight Wednesday Thursday Friday Saturday Sunday Monday Tuesday
Mostly Cloudy on Overnight 20% chance of rain on Wednesday 80% chance of thunderstorms on Thursday Sunny on Friday Sunny on Saturday 20% chance of on Sunday 20% chance of on Monday 20% chance of rain on Tuesday
Low: 34°F High: 55°F High: 59°F High: 47°F High: 59°F High: 60°F High: 59°F High: 62°F
Low: 43°F Low: 31°F Low: 30°F Low: 45°F Low: 45°F Low: 47°F  
Mostly Cloudy Rain Thunderstorms Sunny Sunny Partly Sunny Partly Sunny Rain
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Current Conditions at
MUSCLE SHOALS - (KMSL)
43°
Clear
as of 1:53 AM CST
Rel. Humidity: 45%
Dew Point: 23°F
Visibility: 10 Miles
Pressure: 30.17 in.
Flight Rule: VFR
Wind Data
6 MPH
150° Southeast
Cloud Level(s): Clear
Current Conditions at
DECATUR - (KDCU)
32°
Clear
as of 1:53 AM CST
Rel. Humidity: 80%
Dew Point: 27°F
Visibility: 10 Miles
Pressure: 30.21 in.
Flight Rule: VFR
Wind Data
5 MPH
120° Southeast
Cloud Level(s): Clear
Current Conditions at
COLUMBIA - (KMRC)
43°
Clear
as of 1:55 AM CST
Rel. Humidity: 35%
Dew Point: 18°F
Visibility: 10 Miles
Pressure: 30.13 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
HUNTSVILLE - (KHSV)
34°
Clear
as of 1:53 AM CST
Rel. Humidity: 69%
Dew Point: 25°F
Visibility: 10 Miles
Pressure: 30.20 in.
Flight Rule: VFR
Wind Data
7 MPH
130° Southeast
Cloud Level(s): Clear
Mostly Cloudy on Overnight Overnight... Mostly cloudy, with a low around 34. South wind around 5 mph.
20% chance of rain Wednesday Wednesday... A slight chance of showers between 8am and 11am. Mostly cloudy, with a high near 55. Calm wind becoming south southwest around 5 mph. Chance of precipitation is 20%.
20% chance of rain Wednesday Night Wednesday Night... A 20 percent chance of showers after 5am. Mostly cloudy, with a low around 43. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.
80% chance of thunderstorms Thursday Thursday... Showers, with thunderstorms also possible after 3pm. High near 59. South southeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.
100% chance of thunderstorms Thursday Night Thursday Night... Showers and possibly a thunderstorm before 11pm, then a slight chance of showers between 11pm and midnight. Low around 31. South southwest wind 5 to 15 mph becoming northwest after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 100%.
Sunny on Friday Friday... Sunny, with a high near 47. Northwest wind around 5 mph.
Mostly Clear on Friday Night Friday Night... Mostly clear, with a low around 30. Calm wind becoming south around 5 mph after midnight.
Sunny on Saturday Saturday... Sunny, with a high near 59. South wind 5 to 15 mph, with gusts as high as 20 mph.
20% chance of rain Saturday Night Saturday Night... A 20 percent chance of showers after midnight. Partly cloudy, with a low around 45. South wind 5 to 10 mph, with gusts as high as 20 mph.
20% chance of Sunday Sunday... A 20 percent chance of showers. Partly sunny, with a high near 60.
20% chance of rain Sunday Night Sunday Night... A 20 percent chance of showers. Mostly cloudy, with a low around 45.
20% chance of Monday Monday... A 20 percent chance of showers. Partly sunny, with a high near 59.
30% chance of rain Monday Night Monday Night... A 30 percent chance of showers. Mostly cloudy, with a low around 47.
20% chance of rain Tuesday Tuesday... A 20 percent chance of showers. Mostly cloudy, with a high near 62.
Current Radar Image


Sun Almanac for Saint Marys, Tennessee
Sunrise: 06:52 AM
Sunset: 4:40 PM
Civil Sunrise:06:24 AM
Civil Sunset: 5:08 PM
Nautical Sunrise: 05:52 AM
Nautical Sunset: 5:40 PM
Astro Sunrise: 05:21 AM
Astro Sunset: 6:11 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.