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December 18th, 2025 :: 4:02 am EST   

Local Weather Report for
Signal Mountain
Tennessee, United States

 Signal Mountain Weather Forecast Summary  
 
Today
Dec 18th
Friday
Dec 19th
Saturday
Dec 20th
Sunday
Dec 21st
Monday
Dec 22nd
Showers Mix of Cloud and Sun Cloudy Cloudy Cloudy
57°F
46°F
32°F
55°F
31°F
53°F
36°F
53°F
31°F
 
 Signal Mountain Detailed Weather Forecast  
 
Thursday, December 18th, 2025
Morning Temperature: 53°F
Cloudy with showers likely. Windy at times.
Afternoon Temperature: 54°F
Cloudy with a chance of showers. Windy at times.
Evening Temperature: 52°F
Cloudy with showers likely. Windy at times.
Friday, December 19th, 2025
Overnight Temperature: 40°F
Mostly clear.
Morning Temperature: 41°F
Sunny.
Afternoon Temperature: 41°F
Sunny.
Evening Temperature: 33°F
A mix of cloudy and clear skies.
Saturday, December 20th, 2025
Overnight Temperature: 31°F
Clear.
Morning Temperature: 48°F
A mix of cloud and sun. Windy at times.
Afternoon Temperature: 51°F
Cloudy. Windy at times.
Evening Temperature: 44°F
Cloudy.
Sunday, December 21st, 2025
Overnight Temperature: 45°F
Cloudy.
Morning Temperature: 51°F
Mostly sunny. Windy at times.
Afternoon Temperature: 47°F
Cloudy. Windy at times.
Evening Temperature: 37°F
Clear. Windy at times.
Monday, December 22nd, 2025
Overnight Temperature: 32°F
Mostly clear.
Morning Temperature: 44°F
Sunny.
Afternoon Temperature: 50°F
Cloudy. Windy at times.
Evening Temperature: 43°F
Cloudy. Windy at times.
Tuesday, December 23rd, 2025
Overnight Temperature: 40°F
Clear with cloudy periods. Windy at times.
Morning Temperature: 47°F
Sunny with cloudy periods. Windy at times.
Afternoon Temperature: 49°F
Sunny with cloudy periods.
Evening Temperature: 47°F
Cloudy.
Wednesday, December 24th, 2025
Overnight Temperature: 45°F
Clear with cloudy periods.
Morning Temperature: 54°F
Cloudy.
Afternoon Temperature: 60°F
Cloudy.
Evening Temperature: 53°F
A mix of cloudy and clear skies.
Thursday, December 25th, 2025
Overnight Temperature: 50°F
A mix of cloudy and clear skies.
Morning Temperature: 62°F
Cloudy.
Afternoon Temperature: 62°F
Cloudy.
Evening Temperature: 53°F
Cloudy.
Friday, December 26th, 2025
Overnight Temperature: 50°F
Cloudy.
Morning Temperature: 58°F
Cloudy.
Afternoon Temperature: 59°F
Cloudy with a slight chance of showers.
Evening Temperature: 58°F
Cloudy with a slight chance of showers.





 

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2:53 AM  39°F
 
 
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This WeatherCity Weather Forecast for Signal Mountain, Tennessee, United States is computed using a computer-generated forecast model and should be considered experimental. Please confirm this weather information with your official weather information office

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