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

Heavy to Excessive Rainfall for the Southwest U.S.; Watching for Possible East Coast Storm

Thunderstorms and a chance for some isolated flash flooding will continue today in the Southwest U.S. before an influx of tropical moisture from Priscilla brings widespread heavy rainfall and a flash flooding threat late this week into this weekend. A coastal storm may develop off the southeast U.S. coast Friday night and drift north just off the Mid-Atlantic coast through the weekend. Read More >

Current conditions at

Chattanooga, Lovell Field (KCHA)

Lat: 35.03°NLon: 85.2°WElev: 679ft.

Partly Cloudy

77°F

25°C

Humidity 54%
Wind Speed N 12 mph
Barometer 30.15 in (1020.2 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 8 Oct 6:53 pm EDT
Extended Forecast for

Signal Mountain TN

  • Tonight

    Tonight: Mostly clear, with a low around 55. Northeast wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 55 °F

    Mostly Clear

  • Thursday

    Thursday: Partly sunny, with a high near 68. Northeast wind 5 to 10 mph.

    High: 68 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 50. Northeast wind around 5 mph becoming southeast after midnight.

    Low: 50 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 70. Calm wind becoming southeast around 5 mph.

    High: 70 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 50. Calm wind.

    Low: 50 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 73. Calm wind becoming northeast around 5 mph.

    High: 73 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 50. North wind around 5 mph.

    Low: 50 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 53.

    Low: 53 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 55. Northeast wind 10 to 15 mph, with gusts as high as 20 mph.
Thursday
Partly sunny, with a high near 68. Northeast wind 5 to 10 mph.
Thursday Night
Partly cloudy, with a low around 50. Northeast wind around 5 mph becoming southeast after midnight.
Friday
Sunny, with a high near 70. Calm wind becoming southeast around 5 mph.
Friday Night
Mostly clear, with a low around 50. Calm wind.
Saturday
Sunny, with a high near 73. Calm wind becoming northeast around 5 mph.
Saturday Night
Clear, with a low around 50. North wind around 5 mph.
Sunday
Sunny, with a high near 74.
Sunday Night
Mostly clear, with a low around 53.
Columbus Day
Sunny, with a high near 76.
Monday Night
Clear, with a low around 56.
Tuesday
Sunny, with a high near 78.
Tuesday Night
Clear, with a low around 57.
Wednesday
Sunny, with a high near 78.
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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:
7:06 pm EDT Oct 8, 2025
Forecast Valid:
7pm EDT Oct 8, 2025-6pm EDT Oct 15, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation