National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Heavy Lake Effect Snow Downwind of Lakes Erie and Ontario; Fire Weather Concerns in the Southern Plains and Southeast

A multi-day heavy lake effect snow event is expected downwind of Lakes Erie and Ontario through New Year's Day. There is increasing confidence in snow squalls causing bursts of snow & gusty winds on New Year's Eve. Elevated fire weather conditions will continue today over parts of the Southern Plains and across much of the Southeast U.S. Read More >

Current conditions at

Chattanooga, Lovell Field (KCHA)

Lat: 35.03°NLon: 85.2°WElev: 679ft.

A Few Clouds

39°F

4°C

Humidity 33%
Wind Speed N 7 mph
Barometer 30.20 in (1023.3 mb)
Dewpoint 12°F (-11°C)
Visibility 10.00 mi
Wind Chill34°F (1°C)
Last update 30 Dec 1:53 pm EST
Extended Forecast for

Signal Mountain TN

  • This Afternoon

    This Afternoon: Sunny, with a high near 35. Northwest wind around 5 mph.

    High: 35 °F

    Sunny

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming clear, with a low around 25. West wind around 5 mph.

    Low: 25 °F

    Decreasing
    Clouds

  • Wednesday

    Wednesday: Sunny, with a high near 45. West wind around 5 mph.

    High: 45 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 31. West wind around 5 mph.

    Low: 31 °F

    Mostly Clear

  • New Year's Day

    New Year's Day: Sunny, with a high near 50. Northwest wind around 5 mph becoming calm.

    High: 50 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 37. Calm wind becoming southwest around 5 mph.

    Low: 37 °F

    Mostly Cloudy

  • Friday

    Friday: A 50 percent chance of showers after 1pm. Mostly cloudy, with a high near 52. South wind around 5 mph.

    High: 52 °F

    Mostly Cloudy
    then Chance
    Showers

  • Friday Night

    Friday Night: Showers likely, mainly before 1am. Cloudy, with a low around 45. Chance of precipitation is 70%.

    Low: 45 °F

    Showers
    Likely

  • Saturday

    Saturday: A 20 percent chance of showers before 1pm. Partly sunny, with a high near 54.

    High: 54 °F

    Slight Chance
    Showers

Detailed Forecast

This Afternoon
Sunny, with a high near 35. Northwest wind around 5 mph.
Tonight
Mostly cloudy, then gradually becoming clear, with a low around 25. West wind around 5 mph.
Wednesday
Sunny, with a high near 45. West wind around 5 mph.
Wednesday Night
Mostly clear, with a low around 31. West wind around 5 mph.
New Year's Day
Sunny, with a high near 50. Northwest wind around 5 mph becoming calm.
Thursday Night
Mostly cloudy, with a low around 37. Calm wind becoming southwest around 5 mph.
Friday
A 50 percent chance of showers after 1pm. Mostly cloudy, with a high near 52. South wind around 5 mph.
Friday Night
Showers likely, mainly before 1am. Cloudy, with a low around 45. Chance of precipitation is 70%.
Saturday
A 20 percent chance of showers before 1pm. Partly sunny, with a high near 54.
Saturday Night
Partly cloudy, with a low around 38.
Sunday
Mostly sunny, with a high near 54.
Sunday Night
Partly cloudy, with a low around 40.
Monday
Mostly sunny, with a high near 57.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Signal Mountain TN
 35.13°N 85.38°W (Elev. 1699 ft)
Last Update:
12:31 pm EST Dec 30, 2025
Forecast Valid:
2pm EST Dec 30, 2025-6pm EST Jan 5, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation