Heavy Rainfall and Severe Thunderstorm Threats for the Plains and Southeast

A frontal boundary extending from the western High Plains to the Southeast will focus additional showers and thunderstorms this weekend. Some of these storms may become severe, alongside frequent lightning, and isolated instances of flash flooding. Meanwhile dry conditions will continue for the Great Basin where fire weather concerns linger. For the mid-Atlantic and Northeast, seasonable weather. Read More >

Hazardous Weather Conditions

Current conditions at

Chattanooga, Lovell Field (KCHA)

Lat: 35.03°NLon: 85.2°WElev: 679ft.

Light Rain

71°F

22°C

Humidity 90%
Wind Speed S 5 mph
Barometer 30.08 in (1018.0 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 3 Aug 11:53 am EDT
Extended Forecast for

Signal Mountain TN

  • This Afternoon

    This Afternoon: Showers likely and possibly a thunderstorm before 4pm, then a chance of showers and thunderstorms after 4pm.  Mostly cloudy, with a high near 71. Southeast wind around 5 mph.  Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 71 °F

    Showers
    Likely

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before 8pm.  Mostly cloudy, with a low around 63. Southeast wind around 5 mph becoming calm  in the evening.

    Low: 63 °F

    Chance
    Showers then
    Mostly Cloudy

  • Monday

    Monday: A slight chance of showers, then a chance of showers and thunderstorms after 2pm.  Mostly cloudy, with a high near 74. East wind around 5 mph.  Chance of precipitation is 30%.

    High: 74 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 63. Southeast wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 40%.

    Low: 63 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers, then showers likely and possibly a thunderstorm after 2pm.  Mostly cloudy, with a high near 75. Calm wind becoming east around 5 mph in the afternoon.  Chance of precipitation is 60%.

    High: 75 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a chance of showers after 2am.  Mostly cloudy, with a low around 66. Southeast wind around 5 mph becoming calm.  Chance of precipitation is 60%.

    Low: 66 °F

    Showers
    Likely

  • Wednesday

    Wednesday: A chance of showers before 8am, then a chance of showers and thunderstorms between 8am and 2pm, then showers likely and possibly a thunderstorm after 2pm.  Partly sunny, with a high near 79. Calm wind becoming east around 5 mph.  Chance of precipitation is 70%.

    High: 79 °F

    Chance
    Showers then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm before 8pm, then a slight chance of showers and thunderstorms between 8pm and 2am.  Partly cloudy, with a low around 65. Chance of precipitation is 60%.

    Low: 65 °F

    Showers
    Likely then
    Slight Chance
    T-storms

  • Thursday

    Thursday: A 50 percent chance of showers and thunderstorms, mainly after 2pm.  Mostly sunny, with a high near 81.

    High: 81 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

Detailed Forecast

This Afternoon
Showers likely and possibly a thunderstorm before 4pm, then a chance of showers and thunderstorms after 4pm. Mostly cloudy, with a high near 71. Southeast wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy, with a low around 63. Southeast wind around 5 mph becoming calm in the evening.
Monday
A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 74. East wind around 5 mph. Chance of precipitation is 30%.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%.
Tuesday
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 75. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 60%.
Tuesday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a chance of showers after 2am. Mostly cloudy, with a low around 66. Southeast wind around 5 mph becoming calm. Chance of precipitation is 60%.
Wednesday
A chance of showers before 8am, then a chance of showers and thunderstorms between 8am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 79. Calm wind becoming east around 5 mph. Chance of precipitation is 70%.
Wednesday Night
Showers likely and possibly a thunderstorm before 8pm, then a slight chance of showers and thunderstorms between 8pm and 2am. Partly cloudy, with a low around 65. Chance of precipitation is 60%.
Thursday
A 50 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 81.
Thursday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 66.
Friday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 82.
Friday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 67.
Saturday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 85.
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ABOUT THIS FORECAST

 
Point Forecast:
Signal Mountain TN
 35.12°N 85.35°W (Elev. 1683 ft)
10:03 am EDT Aug 3, 2025
12pm EDT Aug 3, 2025-6pm EDT Aug 9, 2025
 
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Additional Resources

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Hourly Weather Forecast

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