Powerful Winter Storm from the Upper Midwest into the Northeast; Severe Thunderstorms in the Midwest and Ohio Valley

A rapidly-intensifying storm is expected to bring heavy snow, blizzard conditions, and icing from the Upper Midwest through the Great Lakes and Northeast. Scattered severe thunderstorms may produce severe/damaging wind gusts and a couple of tornadoes across parts of the Midwest and lower Ohio Valley through the evening. Arctic air will expand across the central and southern U.S.. Read More >

Current conditions at

Chattanooga, Lovell Field (KCHA)

Lat: 35.03°NLon: 85.2°WElev: 679ft.

Mostly Cloudy

52°F

11°C

Humidity 61%
Wind Speed W 15 G 28 mph
Barometer 29.94 in (1013.6 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Wind Chill47°F (8°C)
Last update 29 Dec 5:53 am EST
Extended Forecast for

Signal Mountain TN

  • Today

    Today: A 20 percent chance of showers before 7am.  Mostly cloudy through mid morning, then gradual clearing, with a temperature falling to around 32 by 5pm. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 40 °F

    Slight Chance
    Showers and
    Breezy then
    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 22. Northwest wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 22 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 35. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 35 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 24. West wind around 5 mph.

    Low: 24 °F

    Mostly Clear

  • 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 29. West wind around 5 mph.

    Low: 29 °F

    Mostly Clear

  • New Year's Day

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

    High: 50 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 33.

    Low: 33 °F

    Mostly Cloudy

  • Friday

    Friday: A 30 percent chance of showers after 1pm.  Mostly cloudy, with a high near 51.

    High: 51 °F

    Mostly Cloudy
    then Chance
    Showers

Detailed Forecast

Today
A 20 percent chance of showers before 7am. Mostly cloudy through mid morning, then gradual clearing, with a temperature falling to around 32 by 5pm. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Tonight
Partly cloudy, with a low around 22. Northwest wind 10 to 15 mph, with gusts as high as 20 mph.
Tuesday
Sunny, with a high near 35. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly clear, with a low around 24. 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 29. West wind around 5 mph.
New Year's Day
Sunny, with a high near 50. West wind around 5 mph.
Thursday Night
Mostly cloudy, with a low around 33.
Friday
A 30 percent chance of showers after 1pm. Mostly cloudy, with a high near 51.
Friday Night
Showers likely. Cloudy, with a low around 42. Chance of precipitation is 70%.
Saturday
A 40 percent chance of showers. Partly sunny, with a high near 50.
Saturday Night
Partly cloudy, with a low around 35.
Sunday
Sunny, with a high near 49.
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ABOUT THIS FORECAST

 
Point Forecast:
Signal Mountain TN
 35.13°N 85.38°W (Elev. 1699 ft)
6:06 am EST Dec 29, 2025
6am EST Dec 29, 2025-6pm EST Jan 4, 2026
 
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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